Follow us on Twitter
twitter icon@FreshPatents


Protection Circuit patents

      

This page is updated frequently with new Protection Circuit-related patent applications.

Failure avoidance for battery packs having overcharge protection circuits
A battery pack is provided for use with a power tool. The battery pack includes a housing and a plurality of battery cells connected in series within the housing, such that an inter-cell node is defined between each pair of adjacent battery cells.
Black & Decker Inc.


Display device
To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film.
Japan Display Inc.


Level shift circuit
A level shift circuit including serially-connected first resistor and first transistor and serially-connected second resistor and second transistor, a protection circuit that receives signals at a first junction between the first resistor and the first transistor and a second junction between the second resistor and the second transistor, a latch circuit receiving an output of the protection circuit, serially-connected third and fourth transistors and serially-connected fifth and sixth transistors respectively connected in parallel to the first and second resistors, a switching time detection circuit that receives the signals at the first and second junctions and detects an occurrence of switching noise, and first and second logical and circuits that receive outputs of the switching time detection circuit and the signals at the first and second junctions, and respectively control the fourth and sixth transistors. The third and fifth transistors are controlled by an output, or an inversion thereof, of the latch circuit..
Fuji Electric Co., Ltd.


Power switching device and control method thereof
A power switching device is provided. A first transmitting switch transmits an input voltage to an output node when the first transmitting switch is turned on.
Nuvoton Technology Corporation


Electronic switch and protection circuit
Disclosed is an electronic circuit and a method. The electronic circuit includes a plurality of electronic switches each including a load path and a control node, wherein the load paths are connected in parallel between a first load node and a second load node of the electronic circuit; a current sense circuit configured to sense a load current between the first load node and the second load node and to generate a current sense signal representing the load current; a drive circuit configured to drive the plurality of electronic switches based on at least one input signal; and an overload detector.
Infineon Technologies Ag


Protection circuit for a fuel cell and use
A protection circuit for a fuel cell coupled to a load. The protection circuit includes a switch and a controller.
General Electric Company


Esd protection for depletion-mode devices
A device includes a transistor configured for depletion-mode operation, the transistor having a gate terminal and a drain terminal, and an electrostatic discharge (esd) protection circuit coupling the gate terminal and the drain terminal. The esd protection circuit includes a discharge path circuit and a trigger circuit coupled to, and configured to control, the discharge path circuit.
Nxp Usa, Inc.


Electronic component of electronic device, starting electronic device and encryption method
An electronic component of an electronic device, a method of starting an electronic device, and an encryption method. The electronic device includes a key storage unit that stores a first key, a key protection circuit that controls access of the key storage unit, and a storage unit that stores a second key and encrypted booting instructions.
Realtek Semiconductor Corporation


Fault and short-circuit protected output driver
A driver and protection circuit for driving a power switch is disclosed. The driver and protection circuit includes a fault detection block configured to detect a discrepancy between a reference drive signal and a measured voltage at a gate of the power switch.
Infineon Technologies North America Corp.


Electrostatic discharge (esd) protection for use with an internal floating esd rail
Embodiments of an electrostatic discharge (esd) protection device and a method of operating an esd protection device are described. In one embodiment, the esd protection circuit is connected between a vdd rail and a vss rail and includes an internal floating esd rail located between the vdd rail and the vss rail, i/o pins connected between the internal floating esd rail and the vss rail, esd diodes corresponding to at least one i/o pin, an internal bias cell corresponding to an i/o pin and configured to short the corresponding i/o pin to the internal floating esd rail when the i/o pin is pulled high, and an internal bias cell corresponding to a vdd pin of the vdd rail and configured to short the vdd rail to the internal floating esd rail when the vdd pin is pulled high..
Nxp B.v.


Dynamically triggered electrostatic discharge cell

An electrostatic discharge (esd) protection circuit includes an active shunt transistor, a first pull-down transistor, and a second pull-down transistor. The active shunt transistor is coupled between a first i/o pad and a reference voltage.
Texas Instruments Incorporated

Electronic switching and reverse polarity protection circuit

An electronic circuit includes a first transistor device and a second transistor device of the same conductivity type. The first transistor device is integrated in a first semiconductor body and includes a first load pad at a first surface of the first semiconductor body and a second load pad at a second surface of the first semiconductor body.
Infineon Technologies Dresden Gmbh

Input protection circuit for an analog optocoupler

An input protection circuit (110) for an optocoupler (20) is provided. The input protection circuit (110) includes a first voltage limiter (d1) with a first terminal that is electrically coupled to an input terminal of an amplifier circuit (120), wherein the input terminal of the amplifier circuit (120) is configured to receive a pwm signal and the amplifier circuit (120) is configured to provide a voltage to the optocoupler (20)..
Micro Motion, Inc.

Radio frequency integrated circuit (rfic) charged-device model (cdm) protection

An apparatus is described. The apparatus includes an input device.
Qualcomm Incorporated

Isolated synchronous rectification-type dc/dc converter

A secondary controller drives a light emitting element of a photocoupler such that a detection voltage vouts corresponding to an output voltage vout generated in an output capacitor c approximates to a reference voltage vref. A primary controller controls a switching transistor m according to a feedback signal vfb.
Rohm Co., Ltd.

Direct current voltage conversion circuit and liquid crystal display device

A direct-current voltage conversion circuit and a liquid crystal display device are disclosed. The direct-current voltage conversion circuit includes a control chip, a conversion circuit and a protection circuit, wherein, the control chip is electrically connected to the conversion circuit, the control chip generates a control signal and an original voltage signal; the conversion circuit receives the control signal and the original voltage signal, and under a controlling of the control signal, obtaining a direct-current voltage signal according to the original voltage signal; the protection circuit detects if the conversion circuit generates an abnormality according to the direct-current voltage signal, and turning off the conversion circuit when the conversion circuit generates the abnormality..
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Systems and methods for reuse of battery pack-side current and voltage sensing

Systems and methods for reuse of battery pack-side current and voltage sensing are disclosed. By reusing elements within a battery pack, a battery field effect transistor (fet) within a power management integrated circuit (pmic) may be eliminated or at least bypassed.
Qualcomm Incorporated

Power control module using protection circuit for regulating backup voltage to power load during power fault

A power control module comprising low voltage (lv) port for receiving low supply voltage via lv supply line, high voltage (hv) input port for receiving high supply voltage via hv supply line, wherein high supply voltage is higher than low supply voltage, lv output port for providing low output voltage, hv output port for providing high output voltage, lv node coupled to lv input port, hv node coupled to hv input port, bypass circuit coupled between lv and hv nodes, lv protection circuit coupled between lv node and lv output port, and control circuitry configured to detect power fault on either lv or hv supply line, isolate the lv and hv nodes from lv and hv supply lines, provide backup voltage to lv node, and cause lv protection circuit to regulate backup voltage at lv node to maintain low output voltage at lv output port to within predetermined operating range.. .
Western Digital Technologies, Inc.

Overvoltage protection circuit

The present invention relates to an overvoltage protection circuit (1) for protecting the electronics of a motor, in particular of an ec motor, against overvoltage pulses, with two protective devices (fs1, fs2) arranged in series connection between two connections (10, 20), wherein a resistor (r1) or (r2) is connected in parallel to each of the protective devices (fs1, fs2) and at least one capacitive element (c1) is provided in parallel connection to the first protective device (fs1), wherein the overvoltage protection circuit (1) has, between the connections (10, 20), at least a first (lower) and a second (higher) breakdown voltage point at a voltage uz1 or uz2 dependent on the voltage change over time k=(du/dt) of a voltage uga at the connections (10, 20).. .
Ebm-papst Mulfingen Gmbh & Co.kg

Electronic device protection circuit, coresponding device and method

A circuit includes an input terminal and a regulated supply line for supplying an electronic device with an electrostatic discharge protection and driver circuit for the electronic device. The supply line is coupled to the input terminal via the circuitry, so that current injected into the input terminal may produce a voltage increase on the regulated supply line.
Stmicroelectronics International N.v.

Display panel and overcurrent protection circuit of gate driver on array circuit for display panel

The present disclosure proposes an overcurrent orotection circuit of the goa circuit. A voltage signal from a control signal source of the goa circuit is converted into a current signal, and then the current signal is amplified.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Lightweight trusted tasks

Methods and apparatus relating to lightweight trusted tasks are disclosed. In one embodiment, a processor includes a memory interface to a memory to store code, data, and stack segments for a lightweight-trusted task (ltt) mode task and for another task, a ltt control and status register including a lock bit, a processor core to enable ltt-mode, configure the ltt-mode task, and lock down the configuration by writing the lock bit, and a memory protection circuit to: receive a memory access request from the memory interface, the memory access request being associated with the other task, determine whether the memory access request is attempting to access a protected memory region of the ltt-mode task, and protect against the memory access request accessing the protected memory region of the ltt-mode task, regardless of a privilege level of the other task, and regardless of whether the other task is also a ltt-mode task..
Intel Corporation

Oring control using low voltage device for high voltage dc rack

A protection circuits for server racks may include an oring circuit having a first mosfet, a first diode, and first and second comparators. Each of the first and second comparators supports a maximum voltage difference that is less than an operational voltage of the power supply.
Google Inc.

Esd protection circuit cell

A protection cell for a cell library. The protection cell defines a protection circuit for an ic having a driving device with a first supply voltage vdd1 and an output, and a driven device having an input and a second supply voltage vdd2.
Taiwan Semiconductor Manufacturing Co., Ltd.

Memory device with a fuse protection circuit

A memory device includes a memory circuit and a fuse protection circuit. The memory circuit includes a memory cell and a program line.
Taiwan Semiconductor Manufacturing Company Limited

Power-off protection circuit and power-off protection electrochromic device

A power-off protection circuit and a power-off protection method of an electrochromic device are revealed. A compelling bleached unit is connected to two electrodes of an electrochromic element in parallel.
Tintable Kibing Co., Ltd.

Lighting circuit and vehicle lamp having the same

A lighting circuit for a light source includes a drive circuit that supplies a lamp current to the light source, detects the lamp current, and executes feedback control such that the lamp current approaches a target current, and an overcurrent protection circuit that is inserted between the drive circuit and the light source and that restricts the lamp current flowing into the light source so that the lamp current does not exceed an overcurrent threshold value. The overcurrent protection circuit includes a transistor, an inductor, a rectifier, a current sensor that generates a current detection signal according to the lamp current, and an overcurrent protection controller that controls on/off of the transistor based on the current detection signal and the overcurrent threshold value.
Koito Manufacturing Co., Ltd.

Electrostatic discharge protection circuit

An electrostatic discharge (esd) protection circuit is provided. A detector is coupled between a first input-output pad and a second input-output pad and detects the voltage levels of the first and second input-output pads to generate a detection signal.
Vanguard International Semiconductor Corporation

Current limiter, corresponding device and method

A power transistor supplying power to a load is coupled to a current limiter circuit including a differential amplifier that operates to detect a difference between a sense voltage, indicative of a load current, and a voltage reference. A control terminal of the power transistor is driven by a first output of the differential amplifier as a function of the detected difference.
Stmicroelectronics S.r.l.

Audio power circuit and method

An apparatus and method for controlling an audio power circuit. The audio power circuit includes an audio amplifier having a power input and a speaker connected to the audio amplifier.
Motorola Solutions, Inc.

Semiconductor integrated circuit, communication module, and smart meter

A semiconductor integrated circuit includes a low-noise amplifier circuit, a transformer, and an bsd protection circuit. The low-noise amplifier circuit amplifies a radio signal that is supplied to an input terminal.
Renesas Electronics Corporation*

Esd protection circuit with passive trigger voltage controlled shut-off

Disclosed examples include an esd protection circuit, including a transistor operative according to a control voltage signal at a control node to selectively conduct current from a protected node to a reference node during an esd event, as well as a resistor connected between the control node and the reference node, a capacitor connected between the control node and an internal node, and a diode with an anode connected to the protected node and a cathode connected to the internal node to allow charging current to flow from the protected node to charge the capacitor and to provide a high impedance to the internal node to prevent or mitigate flow of leakage current from the internal node to the protected node to raise a trigger voltage of the protection circuit during normal operation.. .
Texas Instruments Incorporated

Semiconductor device, semiconductor system, and electronic apparatus

An aspect of the disclosure relates to a semiconductor device including a semiconductor element, a connection terminal configured to output a signal based on an output of the semiconductor element, a protection circuit connected to the connection terminal, and a voltage limiting element connected to the connection terminal, wherein the protection circuit is connected to a first power supply line having a first potential and a second power supply line having a second potential lower than the first potential, and wherein a potential supplied to the voltage limiting element is higher than the second potential and lower than the first potential.. .
Canon Kabushiki Kaisha

Accidental fuse programming protection circuits

Apparatus and methods for protection against inadvertent programming of fuse cells are provided herein. In certain configurations, a fuse system includes a fuse programming transistor, a cascode transistor, and a fuse cell electrically connected in series between a first pad and a second pad.
Skyworks Solutions, Inc.

Scrambling of the operation of an integrated circuit

An integrated circuit includes functional circuitry such as a processing core, memory interfaces, cryptographic circuitry, etc. The integrated circuit also includes protection circuitry to protect the functional circuitry of the integrated circuit against attacks by hidden channels.
Proton World International N.v.

Memory address protection circuit and method

A circuit includes a memory configured to store a data unit and parity bits, the parity bits being based on a write address associated with the stored data unit. An address port is configured to receive a read address for the stored data unit.
Taiwan Semiconductor Manufacturing Company, Ltd.

Active clamp overvoltage protection for switching power device

A controller for driving a power switch incorporates a protection circuit to protect the power switch from fault conditions, such as over-voltage conditions or power surge events. The protection circuit includes a fault detection circuit and a protection gate drive circuit.
Alpha And Omega Semiconductor Incorporated

Packaged overvoltage protection circuit for triggering thyristors

In a first embodiment, an ultra-fast breakover diode has a turn on time ton that is less than 0.3 microseconds, where the forward breakover voltage is greater than +400 volts and varies less than one percent per ten degrees celsius change. In a second embodiment, a breakover diode has a reverse breakdown voltage that is greater, in absolute magnitude, than the forward breakover voltage, where the forward breakover voltage is greater than +400 volts.
Ixys Corporation

Esd protection circuit

An electrostatic discharge (esd) protection circuit includes a silicon controlled rectifier (scr) configured to discharge an esd current applied to a power terminal to a ground terminal; and a p-channel metal oxide silicon (pmos) configured to have a triggering voltage lower than that of the scr, and to provide an esd current path between the power terminal and the ground terminal.. .
Samsung Electro-mechanics Co., Ltd.

Self-biased bidirectional esd protection circuit

Disclosed examples provide an esd protection circuit including a protection structure to selectively conduct current between a first terminal at a protected node and a second terminal at a reference node in response to the protected node voltage and a control voltage signal rising above a trigger voltage during an esd event, and a bias circuit configured to bias a protection structure control terminal at a control voltage corresponding to a higher one of a first voltage of the first terminal and a second voltage of the second terminal to control the trigger voltage of the esd protection structure to keep the esd protection structure off during normal operation.. .
Texas Instruments Incorporated

Semiconductor chip having on-chip noise protection circuit

A semiconductor chip having a pad, a protective element, and an internal circuit for providing a semiconductor chip having a protective circuit with high noise resistance, wherein the semiconductor chip is characterized in that the resistance value of metal wiring on a path reaching the pad and the protective element is higher than the resistance value of the protective element.. .
Hitachi Automotive Systems, Ltd.

Switching power supply device

A switching power supply device includes: a switching output circuit configured to generate an output voltage from an input voltage; an oscillation circuit configured to generate a clock signal; a control circuit configured to control driving of the switching output circuit in synchronization with the clock signal; a pulse-by-pulse type overcurrent protection circuit configured to detect an overcurrent flowing through the switching output circuit to generate an overcurrent protection signal for forcibly stopping a switching operation of the switching output circuit; and a pulse skip circuit configured to perform a pulse skip operation of the clock signal in response to the overcurrent protection signal.. .
Rohm Co., Ltd.

Surge protection circuit with feedback control

A surge protection circuit includes a dc trigger circuit that generates a trigger signal when a surge pulse occurs, and a surge protection device, coupled to the dc trigger circuit, that generates a clamp voltage as an output voltage of the surge protection circuit and conducts surge currents to ground in response to the trigger signal. A feedback circuit is provided between the surge protection device and the dc trigger circuit.
Nxp B.v.

Low leakage protection circuit for rf power amplifier

The present disclosure relates to a radio frequency (rf) communications system including an rf power amplifier (pa), a bias circuit, and a protection circuit. The rf pa has an amplifier control terminal and a power supply terminal, the bias circuit is coupled to the amplifier control terminal, and the protection circuit is coupled between the bias circuit and the power supply terminal.
Qorvo Us, Inc.

Protection circuit

An example system includes a channel over which signals are transmitted between test equipment and a device under test (dut); and limiting circuitry to limit a voltage on the channel. The limiting circuitry includes a pn-junction device connected to pass current in response to the voltage on the channel exceeding a limit..
Teradyne, Inc.

Solid-state imaging device and imaging system

A solid-state imaging device includes: a first semiconductor substrate including a photoelectric conversion element; and a second semiconductor substrate including at least a part of a peripheral circuit arranged in a main face of the second semiconductor substrate, the peripheral circuit generating a signal based on the charge of the photoelectric conversion element, a main face of the first semiconductor substrate and the main face of the second semiconductor substrate being opposed to each other with sandwiching a wiring structure therebetween; a pad to be connected to an external terminal; and a protection circuit electrically connected to the pad and to the peripheral circuit, wherein the protection circuit is arranged in the main face of the second semiconductor substrate.. .
Canon Kabushiki Kaisha

Electronic circuit, integrated circuit and motor assembly

An electronic circuit includes an output port, a first ac input port and a second ac input port connecting with an external ac power source, a rectifier circuit and an electrostatic protection circuit. The rectifier circuit includes a first input terminal coupling with the first ac input port, a second input terminal coupling with the second ac input port, a first output terminal and a second output terminal.
Johnson Electric S.a.

Electronic circuit, integrated circuit and motor assembly

An electronic circuit includes an output port, a first ac input port and a second ac input port connecting with an external ac power source, a rectifier circuit. The rectifier circuit includes a first input terminal coupled with the first ac input port, a second input terminal coupled with the second ac input port, a first output terminal and a second output terminal.
Johnson Electric S.a.

System for dynamically controlling an operation of over voltage protection and a voltage converter

A system for dynamically controlling over voltage protection includes a voltage detection circuit, an over voltage protection reference signal output circuit, and an over voltage control signal output circuit. The voltage detection circuit is used for detecting a voltage and outputting a sampled voltage according to the voltage.
Weltrend Semiconductor Inc.

Protection circuit board capable of easily checking welded state between electrode terminal and connection part thereof and secondary battery pack comprising the same

A protection circuit board includes a printed circuit board having a circuit is printed on a board formed from an electrically insulating material and two or more connection components disposed on at least one surface of the printed circuit board and are coupled to an electrode terminal of a secondary battery. Additionally, at least one inspection slot having a shape recessed within the connection component and extending to a portion that the electrode terminal of the secondary battery is coupled thereto and is defined in the connection component..
Lg Chem, Ltd.

Battery cell comprising protection circuit module assembly having lead plate

Provided is a plate-shaped battery cell in which electrode leads are located at one side end portion of a battery case including an excess sealing portion of a thermally-welded or adhesive structure for sealing an electrode assembly. The battery cell includes: a protection circuit module (pcm) assembly having one or more safety elements for preventing overcurrent, wherein the pcm assembly includes a pcm and a conductive lead plate for electrically connecting the electrode leads, wherein the lead plate includes: an electrode lead connection portion positioned at one side end portion of the lead plate for electrically connecting the pcm and the electrode lead; a pcm connection portion located at the other side end portion of the lead plate for connecting to a connection portion of a printed circuit board on which a protection circuit is formed; and a bent portion extending from the electrode lead connection portion to be bent to face the outer surface of the battery case in order to prevent damage to the battery case occurring during a process of connecting the electrode lead to the electrode lead connecting portion..
Lg Chem, Ltd.

Motor drive circuit

An electrical circuit for driving at least one electric motor, the at least one motor having at least one set of phases windings. The electrical circuit is arranged as at least one lane comprising a motor drive circuit that is operable in use to supply drive voltages to one of the sets of phase windings of the motor.
Trw Limited

Esd protection circuit and integrated circuit

An electrostatic discharge (esd) protection circuit for providing esd paths between a signal pad and a first or second power rail includes a first esd protection module and a second esd protection module. The first esd protection module is coupled between the signal pad and the first power rail, and includes at least two first diodes and a first resistor.
National Taiwan Normal University

Semiconductor integrated circuit device having an esd protection circuit

Diffusion regions having the same conductivity type are arranged on a side of a second wiring and a side of a third wiring, respectively under a first wiring connected to a signal terminal. Diffusion regions are separated in a whole part or one part of a range in a y direction.
Socionext Inc.

Circuit device, oscillator, electronic apparatus, and moving object

A circuit device includes a first pad and a second pad that are disposed in a first pad disposition region along a first side; a third pad and a fourth pad that are disposed in a second pad disposition region along a second side which faces the first side; and a first to fourth electrostatic protection circuits that are disposed in a circuit disposition region between the first pad disposition region and the second pad disposition region and are connected to the first to fourth pads.. .
Seiko Epson Corporation

Dc voltage conversion circuit and liquid crystal display device including the same

The dc voltage conversion circuit includes a booster circuit and a protection circuit. The booster circuit receives a first voltage, converts the first voltage into a second voltage, and provides the second voltage to a vgh line of a lcd device.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Protection circuit in blasting systems

There is provided an electronic detonator with electronic delayer, comprising: —a conductive shell comprising —an open end for receiving elements such as an explosive charge, and —a closed end, and —a printed circuit board (pcb) comprising the electronic circuit of the delayer, the printed circuit board being placed inside the conductive shell, characterized in that the electronic detonator further comprises at least a resilient, compressible and conductive gasket —positioned by the open end in a space defined by the pcb and an inner surface of the conductive shell, —filling at least part of the space between the pcb and the inner surface of the conductive shell, such that protection against electromagnetic interferences (emi) is allowed and —contacting the ground connection of the pcb and the inner surface of the conductive shell such that acts as connection path for grounding the pcb, allowing protection against electro-static interference (esd).. .
Maxamcorp Holding, S.l.

Battery assembly device with charging and discharging protection

A battery assembly device with charging and discharging protection is provided. The aforementioned device includes a plurality of serially connected battery modules and each of the battery module further includes one or a plurality of battery units, a plurality of serially connected first diodes which are parallel connected with the battery unit, a protection circuit including a second diode and third diode which are parallel connected to each other, and a fourth diode.
Elmatek Internation Corp.

Interface circuits to monitor and prevent overstress damage

An interface circuit of an electronic device includes one or more pins, an internal circuit, an over-voltage protection circuit and a monitoring circuit. The pins are selectively connected to an external circuit.
Mediatek Inc.

Reverse current protection circuit for switch circuit

A reverse current protection circuit for a switch circuit includes a reverse current control circuit and an enable/disable circuit coupled to the reverse current control circuit. The reverse current control circuit is coupled to an input terminal and an output terminal of the switch circuit, and disconnects the output terminal of the switch circuit from the input terminal of the switch circuit when an output voltage of the switch circuit is higher than a first predetermined voltage.
Nxp B.v.

Electrostatic discharge power clamp with fail-safe design

An electrostatic discharge protection circuit includes a power clamp device, a timing circuit including a first resistor, a first capacitor that is connected with the first resistor at a first node, and a second capacitor that is connected to a second node, a logic gate including a first input connected with the first node, a second input connected with the second node, and an output connected with the power clamp device, and a decoder device connected with a first address pin and a second address pin. The first address pin and the second address pin are used to detect the power clamp device switching on at time of power on and draining current..
International Business Machines Corporation

Electrostatic discharge device with fail-safe design

An electrostatic discharge protection circuit includes a transistor device, a first timing circuit including a first resistor and a first capacitor that is connected with the first resistor at a first node, a second timing circuit including a second resistor and a second capacitor that is connected with the second resistor at a second node, and a logic gate including a first input connected with the first node, a second input coupled with the second node, and an output connected with the transistor device.. .
International Business Machines Corporation

Esd protection charge pump active clamp for low-leakage applications

Disclosed examples include an electrostatic discharge protection circuit including a shunt transistor coupled between first and second power supply nodes, a sensing circuit to deliver a control voltage signal to turn on the shunt transistor in response to a detected change in a voltage of the first power supply node resulting from an esd stress event, and a charge pump circuit to boost the control voltage signal in response to the control voltage signal turning the shunt transistor on.. .
Texas Instruments Incorporated

Cross-domain esd protection circuit

An esd protection circuit includes: a first current path switch arranged in a parallel connection with a first circuit and turned off when a first node voltage is at a logic high level; a first node for providing the first node voltage; a resister element coupled between a first power terminal and the first node; a mos capacitor coupled between the first node and a first fixed-voltage terminal; a second current path switch arranged in a parallel connection with a second circuit and controlled by a second node voltage; a switch control circuit for providing the second node voltage; and a node voltage control circuit for controlling the first node voltage according to the second node voltage to ensure the first current path switch is turned off when the first power terminal supplies power to the first circuit while the second power terminal supplies power to the second circuit.. .
Realtek Semiconductor Corp.

Over-current protection circuits and liquid crystal devices

An over-current protection circuit includes a detection circuit, a first protection branch, and a second protection branch. The detection circuit is configured for obtaining a first detection voltage.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Protection circuit for integrated circuit die-let after scribe cut

A protection circuit for an integrated circuit product die or die-let (die-let) is responsive to whether the die-let has undergone a dicing operation or not. A test circuit on the die-let's semiconductor wafer can test and/or configure the die-let.
Kilopass Technology, Inc.

Cross-domain esd protection circuit

An esd protection circuit includes: a first current path switch arranged in a parallel connection with a first circuit and turned off when a first node voltage is at a logic low level; a first node for providing the first node voltage; a resister element coupled between a first power terminal and the first node; a mos capacitor coupled between the first node and a first fixed-voltage terminal; a second current path switch arranged in a parallel connection with a second circuit and controlled by a second node voltage; a switch control circuit for providing the second node voltage; and a node voltage control circuit for controlling the first node voltage according to the second node voltage to ensure the first current path switch is turned off when the first power terminal supplies power to the first circuit while the second power terminal supplies power to the second circuit.. .
Realtek Semiconductor Corp.

Surge protection for an electronic device

A surge protection circuit for an electronic device such as an hvac controller. In one example, the surge protection circuit may include a first voltage clamp, a second voltage clamp, a resistor, and an output port.
Honeywell International Inc.

Electrostatic discharge protection circuit applied in integrated circuit

The present application provides an electrostatic discharge protection circuit including a first n-type transistor, a second n-type transistor and a high-voltage tracing circuit. The high-voltage tracing circuit includes a first input terminal, a second input terminal and an output terminal.
Shenzhen Goodix Technology Co., Ltd.

Voltage detecting apparatus

A voltage detecting apparatus includes: a voltage detecting unit configured to detect a voltage of a battery supplying power to a load; a discharge circuit configured to discharge the battery; a protection circuit disposed between the voltage detecting unit and the battery and between the discharge circuit and the battery; and a determination unit configured to estimate an internal resistance of the protection circuit on the basis of a first voltage detected by the voltage detecting unit when the discharge circuit is in a non-operating state and a second voltage detected by the voltage detecting unit when the discharge circuit is in an operating state and determine a half-cut state of the protection circuit on the basis of a result of the estimation.. .
Keihin Corporation

Power supply unit for a resistance welding apparatus

A power supply unit for a resistance welding apparatus, said power supply unit comprising a converter circuit adapted to convert an alternating power supply current, ac, applied via a residual current protection circuit to an input of said converter circuit into a pulsed electrical current supplied from an output of said converter circuit to a primary coil of a transformer of said resistance welding apparatus, and at least one switching element provided between the output of said converter circuit and protective earth.. .
Fronius International Gmbh

Multimode wireless power receiver circuit

A multimode receiver can include on or more of an over-voltage protection circuit or a high frequency mode switch. As such, some embodiments of a multi-mode receiver includes a rectifier; a high frequency circuit coupled to the rectifier; a low frequency circuit coupled to the rectifier; and a switching circuit coupled to disable at least a portion of the low frequency circuit while the multi-mode receiver operates in high frequency mode.
Integrated Device Technology, Inc.

Integrated circuit electrostatic discharge protection with disable-enable

Integrated circuits with electrostatic discharge (esd) protection and methods of providing esd protection in an integrated circuit are provided, which include an ability to off-chip disable/enable the esd protection. An esd protection circuit incorporates a disable/enable device coupled to the esd protection circuit.
Globalfoundries Singapore Pte. Ltd.

Inrush current limiter circuit

Systems and methods for reducing inrush current into a component, such as a power converter (e.g., led driver), which receives alternating current (ac) power from an ac power source (e.g., ac mains). The method may include pre-charging the input capacitance of a component or circuit for a determined period of time after closing of a control switch (e.g., photocontrol, contactor) using a capacitive load pre-charge circuit (e.g., resistor), and then shorting the capacitive load pre-charge circuit using a bidirectional ac switch coupled in parallel with the capacitive load pre-charge circuit after the determined period of time to selectively bypass the capacitive load pre-charge circuit.
Express Imaging Systems, Llc

Battery protection circuit package and battery pack including same

Provided is a battery protection circuit package capable of effectively preventing overcurrent and overheating and of being implemented at low costs in a compact size, the battery protection circuit package including a first terminal and a second terminal electrically connected to electrode terminals of a battery bare cell, a third terminal and a fourth terminal electrically connected to a charger or an electronic device, a first protection circuit module including one or more first transistors connected between at least one of the first and second terminals and at least one of the third and fourth terminals, and a first protection integrated circuit (ic) for controlling the one or more first transistors, and a second protection circuit module including one or more second transistors connected between at least one of the first and second terminals and at least one of the third and fourth terminals and connected in series to the one or more first transistors, and a second protection ic for controlling the one or more second transistors.. .
Itm Semiconductor Co., Ltd.

Current limiter for ac load

A protection circuit including an input interface; an output interface; a current sensor connected between an input terminal and an output terminal; first and second hemt transistors of normally closed type connected in series with the current sensor and connected in series by way of a connection node; a transformer, a primary winding of which is connected to the terminals of the current sensor; a rectifier bridge exhibiting two input terminals connected to the terminals of a secondary winding of the transformer, and exhibiting output terminals, an output terminal of the rectifier bridge being connected to the control gates of the transistors, an output terminal of the rectifier bridge being connected to the connection node.. .
Commissariat A L'energie Atomique Et Aux Energies Alternatives

Compatible inductor-type circuit structure with direct input from commercial power

A compatible inductor-type circuit structure with direct input from commercial power includes a substrate and a light-source control-loop device. The light-source control-loop device is disposed on the substrate and includes a constant current circuit, plural light source modules, a switch, a commercial power simulation circuit, a high voltage protection circuit, plural bridge rectifier circuits and a limited current protection circuit.

Current protected integrated transformer driver for isolating a dc-dc convertor

An improved electronic oscillator circuit suitable for use in an isolating dc-to-dc converter circuit, and an improved isolating dc-to-dc converter circuit. In one embodiment, an integrated circuit coupled to a transformer includes an oscillator and an output driver.
Peregrine Semiconductor Corporation

Clamp voltage detection and over-voltage protection for power supply topologies

An active clamp flyback controller includes first and second input terminals, a clamp voltage detection circuit, and an overvoltage protection circuit. The first input terminal is adapted to be coupled to a terminal of a clamp capacitor.
Fairchild Semiconductor Corporation

Overvoltage protection circuit

An overvoltage protection circuit adapted for a switching power supply is provided. The overvoltage protection circuit can use the time difference of the start of the overvoltage protection to distinguish that the overvoltage of the output voltage of the switching power supply is caused by the failure of the internal feedback or by the internal power supply, thereby avoiding a short and harmless external power supply to affect the normal operation of the switching power supply but can immediately stop the switching power supply to achieve protection when the switching power supply has an internal feedback failure..
Asian Power Devices Inc.

Power-limit protection circuit with an efuse element

A power-limit protection circuit with an efuse element. The power-limit protection circuit has an efuse element coupled between a first terminal and a second terminal.
Monolithic Power Systems, Inc.

Over temperature protection circuit and semiconductor device

An over temperature protection circuit includes a temperature sensor unit, a detection unit, and a filter unit. The temperature sensor unit detects a temperature and outputs a temperature detection signal.
Fuji Electric Co., Ltd.

Battery protection circuit and battery pack including same

A battery protective circuit including a resistor connected to a switch between a battery and a load through which a first current flows, a first driver to supply the first current to the switch and the resistor, a negative temperature coefficient element having resistance that varies in response to heat of the resistor, a second driver to supply a second current to the negative temperature coefficient element, a short-circuit device to be mechanically deformed by a current, a mechanical switch including a plurality of terminals connected with the battery, the terminals electrically connected with each other by deformation of the short-circuit device, a fuse connected in series between the battery and the mechanical switch, a circuit-changing switch configured to supply the second current to the short-circuit device or to block supply thereof, and a controller to control operations of the first driver, the second driver, and the circuit-changing switch.. .
Samsung Sdi Co., Ltd.

Protection circuit module, battery pack, and manufacturing the battery pack

A protection circuit module includes a plurality of pads respectively and electrically connected to a plurality of battery cells, protection circuit to monitor voltages of the battery cells and to balance of the battery cells, and a plurality of contact pads arranged in a preset order between the pads and the protection circuit.. .
Samsung Sdi Co., Ltd.

Protection circuit and integrated circuit

Protection circuit and integrated circuit are provided. A protection circuit includes a discharge passage, configured to perform an electro-static discharge and a controller configured to blow out the electric fuse after the discharge passage fulfills electro-static discharge.
Semiconductor Manufacturing International (beijing) Corporation

Heated ptc element with protection circuit

A heater electrical short protection arrangement has a heating layer that is at least partially electrically conductive. A conductive layer is initially electrically insulated from the heating layer.
Hamilton Sundstrand Corporation

System and capacitor fault energy interruption in adjustable speed drives

An adjustable speed drive (asd) circuit includes a rectifier bridge to convert an ac power input to a dc power, a dc link coupled to the rectifier bridge to receive the dc power, a dc link capacitor bank comprising at least first and second capacitors connected to the dc link, each capacitor having a capacitor voltage thereacross, and a protection circuit including a detection circuit configured to detect a short circuit on one or more of the first and second capacitors of the dc link capacitor bank and generate an action signal upon detection of a short circuit on one or more of the first and second capacitors of the dc link capacitor bank. The asd circuit also includes an action circuit in operable communication with the detection circuit and configured to cause a short circuit across the dc link upon receiving the action signal from the detection circuit..
Eaton Corporation

Electromagnetic interference blocking system

An apparatus and method for blocking electromagnetic interference, emi is presented. In particular, the present invention relates to a switched mode power supply provided with an electromagnetic interference protection circuit with low power dissipation.
Dialog Semiconductor Inc.

Electrostatic protection circuit, display panel, and display apparatus

An electrostatic protection circuit, a display panel, and a display apparatus are disclosed. The electrostatic protection circuit comprises a switch control unit, a first electrostatic storage unit configured to store charges, and a second electrostatic storage unit configured to store charges, wherein the first electrostatic storage unit has a first terminal connected to a driving line and a second terminal connected to the switch control unit, and the second electrostatic storage unit has a first terminal connected to the switch control unit and a second terminal connected to a common electrode trace.
Boe Technology Group Co., Ltd.

Semiconductor integrated circuit

According to one embodiment, a semiconductor integrated circuit includes: a protection circuit including a first diode whose cathode is connected to a first wiring having a power-supply voltage and whose anode is connected to a first node, and a second diode whose anode is connected to a second wiring having a reference voltage and whose cathode is connected to the first node; a protection resistor that is connected to the first node at one end thereof and is connected to a second node at the other end thereof; a buffer circuit that is connected between the first wiring and the second wiring and has an input terminal to which a voltage at the second node is input; and a switching element that is connected between the first wiring and the second node.. .
Kabushiki Kaisha Toshiba

Inductor and protection circuit

To provide an inductor capable of suppressing decrease of inductance in large current without magnetically saturating a magnetic core in large current of several thousand amperes like serge current and to provide a protection circuit using the inductor. The inductor is formed of an iron-based magnetic core 3 having a main coil 2 therein.
Ntn Corporation

Circuits and systems for low power magnetic secure transmission

According to another embodiment, a system includes a driver circuit that drives a first output and a second output; a coil coupled between the first output and the second output such that the driver circuit drives current through the coil in response to control signals; and a programmable slew circuit coupled to the driver circuit. In some embodiments, a switch is coupled between the first output and the coil.
Integrated Device Technology, Inc.

Quick-action leakage detection protection circuit having regular self-checking function

A quick-action leakage detection protection circuit with a regular self-checking function is provided. The quick-action leakage detection protection circuit may include a power input end, a power load end, a power user end, twin induction coils for detecting leakage current and low resistance failure, a control chip, a trip coil in which an iron core is disposed, a reset button, a self-checking chip, and a self-checking silicon controlled rectifier.
Wenzhou Van-shee

System and high speed, high voltage swing electrostatic discharge protection

An esd protection circuit for an ic having multiple diodes coupled in series between a signal pad and a reference pad including a first diode coupled to the signal pad, a last diode coupled to the reference pad, and at least one intermediate diode. The protection circuit includes a bias network which may include one or more resistors, each coupled in parallel with a corresponding intermediate diode.
Silicon Laboratories Inc.

Surge protection circuit

There are provided circuits and methods for surge protection. For example, there is provided a clamp circuit for protecting a load against a surge.
Ge Aviation Systems, Llc

Array substrate and liquid crystal display device

The present invention discloses an array substrate, and the array substrate comprises a substrate, a plurality of data lines and a plurality of scan lines; the substrate comprises a display region and a peripheral circuit region located at peripheral sides of the display region, and each data line comprises a data line outer section and a data line inner section, and each scan line comprises a scan line outer section and a scan line inner section; the peripheral circuit region further comprises a short connection line, an enable signal line, a plurality of first thin film transistors, a plurality of second thin film transistors, a plurality of first electrostatic discharge protection circuits, a plurality of second electrostatic discharge protection circuits, a plurality of third electrostatic discharge protection circuits and a plurality of fourth electrostatic discharge protection circuits.. .
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Paper shredder ac/dc motor controller

A paper shredder controller, with an all-analog controller including a power supply circuit, coupled to a door open switch circuit, an automatic forward control circuit, an automatic reverse control circuit, and a wastebin full circuit. The paper shredder controller includes an overload circuit, a forward-reverse control and relays circuit, a forward-reverse model delay setting circuit, and an overheating protection circuit.
Aurora Office Equipment Co., Ltd. Shanghai

Transient voltage protection circuits

A transient voltage protection circuit includes an inductor with a source-side terminal and a device-side terminal, a first stage with a protection element connected to the inductor source-side terminal, and a second stage with a protection element connected to the inductor device-side terminal. A ground terminal is connected to the inductor device-side terminal through the first stage and to the inductor source-side terminal through the first stage.
Hamilton Sundstrand Corporation

Overcurrent protection circuit

An overcurrent protection circuit includes a current control part configured to control conductance of a transistor so as to limit an output current flowing when the transistor is turned on to a predetermined upper limit or less, and a duty control part configured to forcibly turning on/off the transistor at a predetermined duty ratio when a temperature protection circuit detects a temperature abnormality in a state where the current control part limits the output current.. .
Rohm Co., Ltd.

Cross-domain esd protection

Semiconductor devices with cross-domain electrostatic discharge (esd) protection and related fabrication methods are provided. An exemplary semiconductor device includes first domain circuitry, second domain circuitry, and an interface coupled between an output node of the first domain driver circuitry and second domain receiver circuitry.
Nxp B.v.

Mobile x-ray apparatus and operating the same

Provided are a mobile x-ray apparatus configured to control an operation of a protection circuit for protecting the lithium ion battery during x-ray emission and a method of operating the mobile x-ray apparatus.. .
Samsung Electronics Co., Ltd.

Overload protection circuitry

A system for protecting a camera driver circuit from a static discharge during cable connection is disclosed comprises a supply node having a supply voltage for a driver circuit and a ground on a ground node for the driver circuit. A resistor network is configured to receive a voltage from the supply node and generate a sensed voltage that is related to the voltage on the supply node.
Macom Technology Solutions Holdings, Inc.

Solid-state imaging device and imaging system

A solid-state imaging device includes a first substrate, a second substrate, an electrode portion, a first substrate connecting portion, an electrostatic protection circuit, and a second substrate connecting portion. A photoelectric conversion element is disposed on the first substrate.
Olympus Corporation

Semiconductor device

A semiconductor device provided with: a first input/output circuit connected to a first pad; a second input/output circuit disposed in the direction along one side constituted by a chip edge in relation to the first input/output circuit, the second input/output circuit being connected to a second pad; and an esd protective circuit disposed near the outer-side chip edge of the first and second input/output circuits. The esd protection circuit is provided with a resistor, a capacitor, an inverter, and an n-channel-type transistor..
Renesas Electronics Corporation

Scrs with checker board layouts

An electro-static discharge (esd) protection circuit includes a plurality of groups of p-type heavily doped semiconductor strips (p+ strips) and a plurality of groups of n-type heavily doped semiconductor strips (n+ strips) forming an array having a plurality of rows and columns. In each of the rows and the columns, the plurality of groups of p+ strips and the plurality of groups of n+ strips are allocated in an alternating layout.
Taiwan Semiconductor Manufacturing Company, Ltd.

Nfc system wakeup with energy harvesting

The present invention provides for a system that makes use of a system power supply enable switch controlled by a near field communications (nfc) frontend with energy harvesting. In one embodiment, rf power in the 13.56 mhz band generated by a nfc counterpart (such as a mobile phone) is detected by the energy harvesting unit being part of the battery-unpowered nfc communication device.
Nxp B.v.

Integrated circuit for switching converter and providing power supply voltage to the same

An integrated circuit used for a switching converter has a power supply circuit for providing a power supply voltage, and a control circuit. The switching converter has a switching circuit converting a dc input voltage into an output signal.
Chengdu Monolithic Power Systems Co., Ltd.

A portable switching device to remotely operate a high voltage circuit breaker

A portable switching device to remotely operate a high voltage circuit breaker, the portable switching device is locally temporarily electrically connected to the controlling circuit of the high voltage circuit breaker and comprises: a voltage input (206); a voltage output (208, 210) for connecting to the external circuit; a ground input (212); an overvoltage protection circuit (201) connected between the voltage input (206) and the ground input (212); and a switching unit (203, 205) comprising a first switching circuit having an input connected to the voltage input and an output connected to the voltage output, the first switching circuit comprising a relay (2032), a relay contact protection circuit (2034), and an overload protection circuit (2036); wherein the first switching circuit is remotely controllable to switch the external circuit from a first operating state to a second operating state.. .

Laser activated initiation devices with self-powered event detection and arming logic and false trigger protection for munitions

A laser activated initiation device including: a piezoelectric element; a capacitor; a self-powered acceleration pulse event detection with false trigger protection circuit; a switch reset circuit; and a switching circuit; wherein when the piezoelectric element is subjected to an acceleration pulse the piezoelectric element generates an open-circuit charge profile to charge the capacitor.. .
Omnitek Partners Llc

Overvoltage protection circuit

Universal serial bus (usb) protection circuits are provided. A circuit includes a plurality of first transistors connected in series between a pad and ground.
International Business Machines Corporation

Impedance transformation circuit and overload protection for low noise amplifier

Aspects of this disclosure relate to an impedance transformation circuit and overload protection for a low noise amplifier. A low noise amplifier can include a first inductor, an amplification circuit configured to amplify a radio frequency signal, and a second inductor magnetically coupled to the first inductor to provide negative feedback to linearize the low noise amplifier.
Skyworks Solutions, Inc.

Charger, terminal device, and charging system

A charger, including a power conversion circuit, a charging interface, and an overcurrent protection circuit, where the charging interface includes a power cable, a ground cable, a signal cable, a resistor and a switch device, where a first end of the resistor is connected to the power cable, a second end of the resistor is connected to the signal cable, in a process in which the charger charges a terminal device and when a difference between a voltage of a first end of the switch device and a voltage of a second end of the switch device is greater than or equal to a first voltage threshold, the second end and a third end of the switch device are connected such that the power cable and the ground cable are connected to generate an overcurrent, and the overcurrent protection circuit controls the power conversion circuit to stop current output.. .
Huawei Technologies Co., Ltd.

Safety protection circuit

A safety protection circuit is described, comprising a fuse, a first voltage detection circuit, a first silicon-controlled rectifier, scr, wherein the first scr is triggered upon detection of a threshold voltage by the first voltage detection circuit, a second voltage detection circuit, and a second scr, wherein the second scr is triggered upon detection of a threshold voltage by the second voltage detection circuit.. .
Hewlett-packard Development Company, L.p.

Embedded battery protection system

A signal processing circuit includes a first circuit coupled between a power terminal and a first ground terminal and a second circuit coupled between the power terminal and a second ground terminal. The signal processing circuit is configured to receive a first signal at a voltage level relative to the first ground terminal and, in response to the first signal, provide a second signal at a voltage level relative to the second ground terminal.
Bcd Semiconductor Manufacturing Limited

Protection circuit and protection circuit system

The present technique relates to a protection circuit for a mosfet and a protection circuit system including the protection circuit all of which can reduce losses in the main current and increase in the manufacturing costs for ensuring a sense area. The protection circuit includes: a first mosfet for power through which a main current flows; an igbt which is connected in parallel to the first mosfet and through which a current diverted from the main current flows; a sense resistor connected in series with the igbt; and a first control circuit that controls a gate voltage of the first mosfet based on a value of a voltage to be applied to the sense resistor, wherein a ratio of the diverted current flowing through the igbt to the main current flowing through the first mosfet in current value ranges from 0.018% to 0.022%..
Mitsubishi Electric Corporation

Integrated esd protection circuit for gan based device

The present disclosure relates to an electrostatic discharge (esd) protection circuit integrated with a gallium nitride (gan) based transistor and configured to clamp a gate input voltage of the gallium nitride (gan) based transistor during an esd surge event, and associated methods. In some embodiments, the esd protection circuit includes a first esd protection stage and a second esd protection stage connected between a gate terminal and a source terminal of the gan based transistor.
Taiwan Semiconductor Manufacturing Co., Ltd.

Methods for an esd protection circuit including trigger-voltage tunable cascode transistors

Methods to forming trigger-voltage tunable cascode transistors for an esd protection circuit in finfet ic devices and resulting devices. Embodiments include providing a substrate including adjacent first-type well areas, over the substrate, each pair of first-type well areas separated by a second-type well area; providing one or more junction areas in each first and second type well area, each junction area being a first type or a second type; forming fins, spaced from each other, perpendicular to and over the first and second type junction areas; and forming junction-type devices by forming electrical connections between the first and second type junction areas in the first-type well areas and the substrate, wherein a first-stage junction-type device in a first-type well area includes stacked first and second type junction areas, and wherein the first-stage junction-type device is adjacent a second-type well area including first and second type junction areas..
Globalfoundries Inc.

Semiconductor integrated circuit device having electrostatic discharge protection circuit

A semiconductor integrated circuit device may include a first electrostatic discharge (esd) protecting circuit and a second esd protecting circuit. The first esd protecting circuit may include at least one resistance changeable device connected between a power voltage line and a data pad to discharge an electrostatic.
Sk Hynix Inc.

Led lighting system

An led lamp arrangement adapted for fitting in a luminaire. The luminaire is adapted for a fluorescent lamp and having a ballast.
Silicon Hill B.v.

Method and protecting gate-source junction of low-voltage mosfet in high-voltage circuit

A high-voltage circuit has a protection circuit protecting a low-voltage mosfet. A first mosfet, a low-voltage device with a gate coupled to an input voltage, is coupled in a series with a second mosfet which is a high-voltage device, both of a first conductivity type.
Nuvoton Technology Corporation

Battery storage system with integrated inverter

There is provided a power converter unit that can include an inverter and a plurality of batteries. The power converter unit can include a battery energy storage system (bess) and an inverter.
Ge Energy Power Conversion Technology Ltd

Surge protection circuit and terminal

A surge protection circuit and a terminal are provided. The surge protection circuit is configured to be coupled to a charge management unit.
Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Short circuit protection for data interface charging

A switching power converter is provided with an overvoltage protection circuit that softly switches on a power bus switch during a soft-start period responsive to a device connecting to a data cable for receiving power over a power bus coupled to the power bus switch.. .
Dialog Semiconductor Inc.

Protection circuit for an rf power amplifier

An rf pa and an rf pa protection circuit are disclosed according to one embodiment of the present disclosure. The rf pa includes an rf pa bias circuit and an rf pa transistor element.
Qorvo Us, Inc.

Short circuit protection for data interface charging

A switching power converter is provided with an overvoltage protection circuit that monitors the differential data signal voltages in a data interface such as a usb data interface powering a load device to detect soft short conditions.. .
Dialog Semiconductor Inc.

Secondary battery protection circuit

A secondary battery protection circuit includes a first terminal connected to a power supply path between a secondary battery and a mos transistor, a second terminal connected to the power supply path between a load and the mos transistor, a third terminal connected to a gate of the mos transistor, a fourth terminal connected to a back gate of the mos transistor, a control circuit that outputs a switch control signal based on a detected abnormal state of the secondary battery, and a switch control circuit including a first switch for connecting the fourth terminal with the first terminal and a second switch for connecting the fourth terminal with the second terminal. At least one of the resistance between the fourth terminal and the first terminal and the resistance between the fourth terminal and the second terminal is greater than the on resistance value of the mos transistor..
Itm Semiconductor Co., Ltd.

Current-limiting protection circuit and electronic device

A current-limiting protection circuit and an electronic device are provided. The current-limiting protection circuit includes a power supply chip and a current-limiting circuit that is electrically connected to the power supply chip.
Huawei Technologies Co., Ltd.

Secondary battery

A secondary battery includes a battery cell, a protection circuit module electrically connected to the battery cell, a top case covering the protection circuit module, and a bottom case covering a bottom surface of the battery cell. The bottom case includes a pull tab protruding to an outside of the bottom case..
Samsung Sdi Co., Ltd.

Wireless control and status monitoring for electric grill with current protection circuitry

Provided is an apparatus and method for protecting against unsafe electric current conditions. A protections circuit may be used in a device, such as an electric grill, that has one or more electric loads, such as heating elements.
Weber-stephen Products Llc

Electric grill with current protection circuitry

Provided is an apparatus and method for protecting against unsafe electric current conditions. A protections circuit may be used in a device, as an electric grill, that has one or more electric loads, such as heating elements.
Weber-stephen Products Llc

Electronic switching and reverse polarity protection circuit

In accordance with an embodiment, an electronic circuit includes a first transistor device, at least one second transistor device, and a drive circuit. The first transistor device is integrated in a first semiconductor body, and includes a first load pad at a first surface of the first semiconductor body and a control pad and a second load pad at a second surface of the first semiconductor body.
Infineon Technologies Ag

Battery and electronic device thereof

A battery and an electronic device are provided. The battery includes a battery cell, including at least one anode of the battery cell and at least one cathode of the battery cell.
Lenovo (beijing) Co., Ltd.

Battery and charging method

A battery includes a cell including a core and a sealing film enclosing the core. The core includes a negative electrode plate, a metal plate, a separator, and a positive electrode plate arranged successively.
Lenovo (beijing) Co., Ltd.

Semiconductor device for electrostatic discharge protection

Disclosed is an electrostatic discharge (esd) protection circuit. The esd protection circuit may include a silicon controller rectifier (scr) which may be triggered via at least one of its first trigger gate or second trigger gate.
Sofics Bvba

Phase shifter

A phase shifter includes a signal input, a signal output, an esd protection circuit, first and second signal paths between the signal input and the signal output. The esd protection circuit includes first and second two port devices, each two port device being switchable between a high impedance state and a low impedance state.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.

Personal safety device, method and article

An article of clothing includes user-protection circuitry, integrated into the article of clothing. The user-protection circuitry includes condition-detection circuitry, which, in operation, generates one or more indications related to an environment of the article of clothing.

Protection circuit for short circuit of led power supply

A protection circuit for short circuit of led power supply includes a constant voltage source powered by the led power supply, a constant current source powered by the led power supply, a switching module for controlling the constant current source to turn off or turn on, and an output current detecting module for controlling the switching module to turn off or turn on. The constant current source is provided in parallel with the constant voltage source.
Self Electronics Usa Corp.

Analog-to-digital converter protection circuit, controlling analog-to-digital converter protection circuit, and controller

An analog-to-digital converter protection circuit, a method for controlling an analog-to-digital converter protection circuit, and a controller are disclosed. The analog-to-digital converter protection circuit includes: an analog switch, an analog-to-digital converter, a controller, and a series circuit including at least two resistors connected in series.
Huawei Technologies Co., Ltd.

Stacked switch circuit having shoot through current protection

An apparatus is described. The apparatus includes a stacked switch circuit having protection circuitry to prevent shoot through current when the switch is in an off state and respective voltages at the terminals of the switch change such that before the change one of the terminals of the switch has the higher voltage and after the change the other terminal of the switch has the higher voltage..
Intel Ip Corporation

Method and low clamping voltage esd solution for transient sensitive applications

An example apparatus includes: a signal terminal for inputting a signal or for outputting a signal; functional circuitry coupled to the signal terminal; a positive supply rail for supplying a positive voltage; a ground supply rail for supplying a ground voltage; a first electrostatic discharge protection circuit coupled between the positive supply rail and the ground supply rail; a second electrostatic discharge protection circuit coupled between the signal terminal and the ground supply rail; an enable circuit coupled to the signal terminal and to the positive supply rail; and a common trigger circuit having a trigger output signal coupled to the first electrostatic discharge protection circuit and to the second electrostatic discharge protection circuit. Additional apparatus and methods are disclosed..
Texas Instruments Incorporated

Esd protection circuit

An electrostatic discharge (esd) protection circuit for providing esd protection to an esd protected circuit. The protection circuit comprises a signal pad and a crossover network for separating wanted electrical data signals and esd signals according to their frequency.
International Business Machines Corporation

Esd protection circuit, differential transmission line, common mode filter circuit, esd protection device, and composite device

An esd protection device includes a first terminal and a second terminal defining a first balanced port, a third terminal and a fourth terminal defining a second balanced port, and a ground terminal. A first coil and a third coil are provided between the first terminal and the third terminal to cancel an inductance component of a first esd protection circuit.
Murata Manufacturing Co., Ltd.

Circuit assembly for protecting a unit to be operated from a supply network against overvoltage

The invention relates to a circuit assembly for protecting a unit to be operated from a supply network against overvoltage, comprising an input having a first and a second input connection, which are connected to the supply network, an output having a first and a second output connection, to which the unit to be protected can be connected, and a protection circuit, which is provided between the first and the second input connections in order to limit the voltage present at the first and the second input connections. According to the invention, the protection circuit has a power semiconductor, in particular an igbt, wherein a series circuit consisting of a diac, i.e., a bidirectional electrode, and a zener element is connected between the collector and the gate of the power semiconductor, wherein the sum of the zener voltage and the diac voltage results in a clamping voltage for the power semiconductor, which lies above the voltage of the supply network and defines the protection level..
Dehn + SÖhne Gmbh + Co. Kg

Surge protection circuit

A surge protection circuit includes a dc trigger circuit that generates a trigger signal when a surge pulse occurs, and a current conducting unit, coupled to the dc trigger circuit, that generates a first clamp voltage as an output voltage of the surge protection circuit and conducts surge currents to ground in response to the trigger signal. The dc trigger circuit includes a surge detection circuit and a first amplification circuit.
Nxp B.v.

Led tube lamp with operating modes compatible with electrical ballasts

A light emitting diode (led) tube lamp configured to receive an external driving signal includes an led module for emitting light, the led module comprising an led unit comprising an led; a rectifying circuit for rectifying the external driving signal to produce a rectified signal, the rectifying circuit having a first output terminal and a second output terminal for outputting the rectified signal; a filtering circuit connected to the led module, and configured to provide a filtered signal for the led unit; and a protection circuit for providing protection for the led tube lamp. The protection circuit includes a voltage divider comprising two elements connected in series between the first and second output terminals of the rectifying circuit, for producing a signal at a connection node between the two elements; and a control circuit coupled to the connection node between the two elements, for receiving, and detecting a state of, the signal at the connection node.
Jiaxing Super Lighting Electric Appliance Co., Ltd

Led driving circuit and protection circuit for dc/dc convertor

A protection circuit for an led driver and a dc/dc converter. The led driver includes a dc/dc converter and a protection circuit.
General Electric Company

Internet interface protection circuit and television

The present disclosure provides an internet interface circuit, which includes an ethernet interface, a first isolating transformer, a second isolating transformer, a network signal processing chip and a first interference defending circuit; the ethernet interface is used for receiving and sending a network signal; the first isolating transformer is used for separating a receiving data end of the ethernet interface from the network signal receiving chip; the second isolating transformer is used for separating a sending data end of the ethernet interface from the network signal receiving chip; the first interference defending circuit is used for defending common-mode interference and differential-mode interference of the receiving data end of the ethernet interface; the network signal processing chip is used for processing the network signal. The present disclosure also provides a television.
Shenzhen Tcl Digital Technology Ltd.

Phase-locked loops with electrical overstress protection circuitry

An integrated circuit with a phase-locked loop (pll) is provided. The pll may include a phase frequency detector, a charge pump, a source follower circuit, a variable oscillator, a frequency divider, and a control block.
Altera Corporation

Semiconductor integrated circuit device

A protection circuit includes a first pmos and a first pdmos receiving input of voltage of a voltage dividing point of voltage input from an external power supply terminal, and a second pmos and a second pdmos receiving input of drain output voltage of the first pdmos. The first pmos is connected on the external power supply terminal side of the first pdmos, and the second pmos is connected on the external power supply terminal side of the second pdmos.
Fuji Electric Co., Ltd.

Apparatus and methods for actively-controlled trigger and latch release thyristor

Apparatus and methods for actively-controlled trigger and latch release thyristor are provided. In certain configurations, an actively-controlled protection circuit includes an overvoltage sense circuit, a thyristor or silicon controlled rectifier (scr) that is electrically connected between a signal node and a discharge node, and an active trigger and latch release circuit.
Analog Devices, Inc.

Transient voltage protection circuits, devices, and methods

A transient voltage protection circuit includes a first input/output pad, a second input/output pad, and a trigger circuit coupled between the first input/output pad and the second input/output pad. The trigger circuit includes a first trigger element which includes a first input/output node, a second input/output node, a third input/output node, and a first substrate diode coupled to the third input/output node of the first trigger element.
Infineon Technologies Ag

Overcurrent protection circuit

An overcurrent protection circuit includes an amplifier configured to amplify an inter-terminal voltage of a shunt resistor, an offset application circuit configured to allow the amplifier to provide an output with a predetermined offset voltage additionally applied thereto, a first comparator that compares an output voltage from the amplifier with a predetermined first reference voltage higher than the offset voltage to output a through-current sensing signal when the output voltage from the amplifier is higher than a first reference voltage, and an amplifier failure determination circuit that compares the output voltage from the amplifier with a predetermined second reference voltage that is higher than zero and lower than the offset voltage to output an amplification circuit failure determination signal corresponding to a result of the comparison.. .
Jtekt Corporation

Insulated synchronous rectification type dc/dc converter, and power adaptor and electronic device

An isolated synchronous rectification type dc/dc converter, includes: a transformer including primary and secondary windings; a switching transistor connected to the primary winding; a synchronous rectifying transistor installed between the secondary winding and a ground line on the secondary side; a photocoupler including a light emitting device and a light receiving device; a feedback circuit driving the light emitting device such that an output voltage of the dc/dc converter approaches a target voltage; a primary side controller connected to the light receiving device and switching the switching transistor depending on feedback signal from the photocoupler; a synchronous rectification controller controlling the rectifying transistor; and a protection circuit including a temperature detection element, one end of the detection element connected to a drain of the rectifying transistor, the protection circuit configured to detect an overheated state of the rectifying transistor depending on a first signal generated by the temperature detection element.. .
Rohm Co., Ltd.

Vertical nanowire transistor for input/output structure

An electrostatic discharge (esd) protection circuit includes an input terminal, a transistor, and an output terminal. The input terminal is configured to receive an input signal.
Taiwan Semiconductor Manufacturing Company, Ltd.

A circuit for a voltage power optimiser

A controller protection circuit for a voltage power optimiser. The circuit having: a first terminal for connecting to a first end of a winding in the voltage power optimiser; a second terminal for connecting to a second end of the winding in the voltage power optimiser; and a thyristor.
Intelligent Energy Saving Company Limited

Display device

The display device includes: a scan line driving circuit selecting a potential supplied to a scan line; a driver chip; a plurality of source wires connected to a detection circuit; a terminal connected to an inspection wire controlling the scan line driving circuit; and a protection circuit arranged between the inspection wire and the terminal when it is assumed that an extending direction of a switch circuit connected with the plurality of source wires is an x axis direction, that one side of the x axis direction is an x1 side, and that the other side therein is an x2 side, the plurality of source wires are arranged closer to the x1 side than a center of the region in the x axis direction, and the terminal and the protection circuit are arranged closer to the x2 side than the center of the region in the x axis direction.. .
Japan Display Inc.

Protection circuit and flyback power converter

A protection circuit for a power converter is provided. The protection circuit includes a sensor circuit, a detection circuit and an initial protection circuit.
Semiconductor Components Industries, Llc

Dc-to-dc converter

An object of the present disclosure is to provide a dc-to-dc converter with a simple circuit configuration that continues the supply of direct current power to a load without providing a redundant power supply circuit even if a switching transistor operates abnormally in the active state. A protection circuit unit that converts an input voltage of a direct current input power supply to a different direct current voltage obtained by stepping down the input voltage, as in a direct current voltage conversion circuit unit including a first switching transistor, is connected between the direct current voltage conversion circuit unit and the direct current input power supply and, if the first switching transistor operates in an active state, direct current power of the direct current voltage converted by the protection circuit unit is supplied to a load causing the first switching transistor to maintain operating in the active state..
Smk Corporation

Over-voltage protection circuit

A device is disclosed that includes a first transistor, a second transistor, and a first pode device. The second transistor is electrically coupled to the first transistor.
Taiwan Semiconductor Manufacturing Co., Ltd.

Dc-dc converter

A dc-dc converter includes a filter circuit, a full-bridge circuit connected to the filter circuit, and a transformer having a primary winding and a secondary winding, the primary winding being connected to the full-bridge circuit. The full-bridge circuit includes first to fourth semiconductor switches.
Murata Manufacturing Co., Ltd.

Battery protection board, battery and mobile terminal

Embodiments of the present disclosure provide a battery protection board, a battery and a mobile terminal. A battery protection board includes a protection circuit and a detection circuit.
Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Battery protection board, battery and mobile terminal

Embodiments of the present disclosure provide a battery protection board, a battery and a mobile terminal. The battery protection board includes a first protection circuit, a current sensing element and a battery voltmeter.
Guangdong Oppo Mobile Telecommunications Corp., Ltd.

Dynamic esd protection scheme

The present disclosure relates to an electrostatic discharge (esd) protection circuit including a dynamic field plate bias circuit, and associated methods. In some embodiments, the esd protection circuit includes a bipolar junction transistor (bjt) based esd protection circuit including a field plate configured to increase a breakdown voltage of the bjt based esd protection circuit.
Taiwan Semiconductor Manufacturing Co., Ltd.

Selective protection circuit and method, and power supply system

A selective protection circuit includes a current-limiting module and a control module, where the current-limiting module includes a switch unit, and the switch unit includes a first end, a second end, and a control end; the first end is connected to a positive electrode of a bus voltage of an hvdc power supply, and the second end is connected to a positive electrode of a power supply of a voltage pre-regulator circuit in a load branch connected to the current-limiting module; the control end is connected to the control module; and the control module is configured to output a control signal to the control end when a value of a total current flowing through the switch unit is greater than or equal to a preset threshold, so as to switch off the switch unit.. .
Huawei Technologies Co., Ltd.

Semiconductor device

A semiconductor device according to related art has a problem that a clamp voltage that clamps an output voltage cannot adaptively vary in accordance with a power supply voltage, and it is thus not possible to reduce heating of a semiconductor chip to a sufficiently low level. According to one embodiment, a semiconductor device includes a drive circuit (10) that controls on and off of an output transistor (13) and an overvoltage protection circuit (12) that controls a conductive state of the output transistor (13) when an output voltage vout reaches a clamp voltage, and the overvoltage protection circuit (12) has a circuit structure that sets the clamp voltage to vary in proportion to a power supply voltage vdd..
Renesas Electronics Corporation

Secured body of memory card reader

A memory card reader body has a generally rectangular parallelepiped shape and a slot for inserting a memory card. The reader body furthermore includes a housing for receiving a memory card connector, and at least one protection circuit.
Ingenico Group

Multi-channel led driver with overheating protection capabilities

An apparatus to drive a multi-channel light emitting diode (led) array includes switching transistors connected to led strings of the multi-channel led array, error amplifiers connected to the switching transistors, each of the error amplifiers being configured to control current flowing through the led string to have a target magnitude, and overheating protection circuits connected to the switching transistors, each of the overheating protection circuits being configured to regulate current flowing through a respective switching transistor to have a magnitude less than or equal to the target magnitude.. .
Magnachip Semiconductor, Ltd.

Distribution block with integrated surge protective device

A modular distribution block for a high-current power system includes a ground module and one or more phase modules. The ground module includes a grounding clamp configured to electrically and mechanically connect to a din rail and to retain the distribution block in place with respect to the din rail.
Erico International Corporation

Digital power supply protection circuit, and apparatus

A digital power supply protection circuit includes: a signal preprocessing circuit, configured to receive an overcurrent signal and a first inceptive impulse clock timing, and perform preprocessing on the overcurrent signal according to the first inceptive impulse clock timing so as to obtain a first reference signal a signal generation circuit, configured to receive the first inceptive impulse clock timing, count time duration between a rising edge of the first inceptive impulse clock timing and a rising edge of the first reference signal so as to obtain a first time duration, and upon the first time duration is greater than a second time duration, generate a first disabling signal by delaying the rising edge of the first inceptive impulse clock timing for the second time duration; and a clock timing adjustment circuit, configured to adjust the first inceptive impulse clock timing according to the first disabling signal.. .
Huawei Technologies Co., Ltd.

Integrated circuit and electrostatic discharge protection circuit thereof

An electrostatic discharge protection circuit is provided. The electrostatic discharge protection circuit includes a first metal-oxide-semiconductor (mos) transistor, a second mos transistor, and a third mos transistor.
Vanguard International Semiconductor Corporation

Semiconductor integrated circuit device including an electrostatic discharge protection circuit

A semiconductor integrated circuit device having a first clamping circuit, a second clamping circuit, a third clamping circuit, a first path-changing line and a second path-changing line. The first clamping circuit may be connected between an input/output pad and a power pad.
Sk Hynix Inc.

Battery protection circuit and method

A method and apparatus for a battery protection circuit. One embodiment provides a method for protecting a battery including receiving, with a comparator, a first voltage, the first voltage including a switch voltage across a current limiting switch provided on a current path of a battery and coupled to a current limiting control circuit to limit current output by the battery.
Motorola Solutions, Inc.

Semiconductor device, liquid crystal display panel, and mobile information terminal

A semiconductor device includes a plurality of sets of external drive terminals in a marginal region along one long side of a rectangular semiconductor substrate, a plurality of sets of esd protection circuits arranged in the marginal region and coupled to corresponding sets of the drive terminals, and a plurality of output circuits coupled to corresponding sets of the drive terminals. Each set of drive terminals in a plurality of n columns along a y direction is laid out in a staggered arrangement with drive terminals in adjacent columns shifted relative to each other.
Renesas Electronics Corporation

Electro-static discharge protection circuit

This disclosure provides an esd protection circuit coupled to a first and a second terminals of a differential-pair circuit. The esd protection circuit includes: an esd sensing unit coupled to the first and the second terminals and sensing electrical changes at the first and the second terminals to generate a first trigger signal; and a first discharging unit coupled to the esd sensing unit and turning on a first discharging path according to the first trigger signal..
Realtek Semiconductor Corporation

Poly silicon based interface protection

A semiconductor device includes an active device of a transistor disposed in a semiconductor substrate. An isolation layer is disposed at the semiconductor substrate, and a polysilicon substrate layer is disposed over the isolation layer and the semiconductor substrate.
Infineon Technologies Ag

Bus driver / line driver

A bus driver is provided that can withstand over voltages being applied to its output terminal without the protection circuit detracting from the voltage swing that can be provided by the driver. The circuit arrangement also allows transistors having good on state resistance and large tolerance of drain-to-source voltages to be used..
Analog Devices Global

Led lighting system

The invention describes an led lighting system (1) comprising a wireless communication arrangement (11, 12) for wireless transfer of signals (d10_11, d11_12, d4_12, d5_12) between devices (10, 11, 12, 4, 5) of the led lighting system (1); at least one led lamp (10) connectable to a mains power supply (2), which led lamp (10) comprises a driver arrangement (100) with a control unit (102) for controlling the led lamp (10) according to a received signal (d10_11); a phase-cut detector (103a, 103b, 103c) realized to detect a phase-cut input (vcut) to the led lamp (10); and a protection circuit (106) realized to prevent operation of the led lamp (10) with the phase-cut input (vcut) if the phase-cut angle of the phase-cut input (vcut) exceeds a critical threshold, wherein said protection circuit (106) is adapted to prevent an exposure of the led lamp to the phase-cut input. The invention further describes an led lamp (10) comprising a driver arrangement (100); and a method of controlling an led lighting system (1)..

Semiconductor device including amplifier

Disclosed here is an apparatus that comprises an amplifier having first and second input nodes, first and second resistors, a first electrostatic discharge protection circuit coupled between the first input node and the first resistor, and a second electrostatic discharge protection circuit coupled between the second input node and the second resistor.. .

Dc-dc converter

There is provided a dc-dc converter which is safe and secure, but yet with low power consumption. The dc-dc converter is configured such that an overcurrent protection circuit is operated intermittently only for a predetermined period of time based on a signal output from an output control circuit to turn on a switching element..

Dc-dc converter

There is provided a dc-dc converter which is safe and secure, but yet with low power consumption. The dc-dc converter is configured to monitor the output voltage of an error amplifier, and detect that the output voltage of the error amplifier becomes a fixed value or smaller to drive an overheat protection circuit and a supply voltage monitoring circuit intermittently..

Enablement of device power-on with proper assembly

An electronic device is configured with sub-assemblies including a main logic board, flexible printed circuit, and dual battery packs that are assembled together with electrical connectors to enable power from the battery packs to flow over a power bus that is distributed along the flexible printed circuit and main logic board. A protection circuit module (pcm) in each battery pack is configured to determine a state of each of the connections among the sub-assemblies (i.e., whether or not properly assembled to provide electrical continuity through the connector) so that power from the battery packs is switched on to the power bus only when electrical continuity is verified at each of the connectors.

Over-current protection in multiphase dc-dc switching regulators

The disclosure provides an over-current protection circuit. A signal generating block in the over-current protection circuit generates one or more input voltages, a summed voltage and an average voltage in response to one or more differential voltages.

Multiple voltage output battery case with protection and alarm system

A battery holder containing 2 or more batteries connected to allow multiple voltage outputs. Each output being protected by an automatically resettable circuit to limit maximum current under all possible external connections and sound an alarm or produce a visual indication or both if any output current is exceeded.

Esd protection device

The present invention is provided with a si substrate, an esd protection circuit formed in the si substrate, pads formed on the surface of the si substrate and electrically connected to first and second input/output terminals of the esd protection circuit, a rewiring layer formed on the surface of the si substrate for electrically connecting the pads and metal plated films, and an insulating resin film formed on the rear surface of the si substrate. Thus, provided is an esd protection device which can suppress the influence of external noise, etc..

Overvoltage protection circuit, control method therefor and battery pack

The overvoltage protection circuit according to an embodiment of the present invention includes: a voltage measurement unit for measuring the voltage of a battery; a power control unit that supplies power if the battery voltage value measured in the voltage measurement unit is equal to or greater than a first predetermined voltage value; and a cut-off circuit unit that receives power supplied from the power control unit and cuts off the charge of the battery if the voltage value of the battery is equal to or greater than a second predetermined voltage value that is higher than the first voltage value.. .

Fluorescent lamp replacement led protection

A fluorescent lamp replacement may include one or more led drivers and lamps in various embodiments, as well as a shock hazard/pin safety circuit. The present invention provides a fluorescent lamp replacement that, for example, powers an led and/or oled and/or qd lamp from a fluorescent fixture, including operating 5 and being powered by electronic ballasts.
Innosys, Inc.

Communication device, communication method, and communication system

A communication device includes a communication circuit configured to transmit, when detecting an interruption of communication performed via a first communication interface, information indicating the interruption of the communication, via a second communication interface; and a protection circuit configured to supply power to the communication circuit, when an interruption of power to be supplied to the communication circuit is detected, wherein, when the interruption of the power is detected, the communication circuit transmits information indicating the interruption of the power via the second communication interface, by using the power supplied from the protection circuit, and when the interruption of the power and the interruption of the communication are both detected, the communication circuit transmits the information indicating the interruption of the power, of the information indicating the interruption of the communication and the information indicating the interruption of the power, via the second communication interface.. .
Fujitsu Limited

Integrated lighting system

An integrated lighting system to efficiently manage battery life with indoor and outdoor modes by charging a battery during the day, turning on lights at peak night hours, and protecting the battery from overvoltage/leakage. The system comprises circuitry operable to connect to the battery and the led light sources, the circuitry comprising a solar cell, a timer circuit, and a protection circuit.
Exhart Environmental Systems, Inc.

Integrated circuit electrostatic discharge protection

Integrated circuits with electrostatic discharge (esd) protection and methods of providing esd protection in an integrated circuit are provided. An esd protection circuit the esd protection circuit may incorporate a transistor, such as a mosfet, and a voltage limiter coupled to a gate of the transistor.
Globalfoundries Singapore Pte. Ltd.

Over-voltage protection circuit and electronic device

An over-voltage protection circuit for executing an over-voltage protection for a led module of an electronic device. The over-voltage protection circuit includes a control unit and an over-voltage detection module, a trigger module and an adjustment module.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Surge voltage protection circuit for direct line operated induction heaters and operation

An apparatus and method for greatly increasing power line surge/transient resistance of power semiconductors in inductive heating equipment, in which a sample of the instantaneous line voltage or its rectified equivalent is applied to a comparator input terminal, and a reference voltage corresponding to a predetermined surge shutdown voltage is applied to an opposite comparator input, such that comparator output changes state in response to the predetermined surge shutdown voltage, and is functionally connected to gate drive circuitry to disable gate drive circuitry for the duration of the surge/transient.. .

Method, apparatus, and system for metal-oxide-semiconductor field-effect transistor (mosfet) with electrostatic discharge (esd) protection

Methods, apparatus, and systems relating to a mosfet with esd resistance, specifically, to a semiconductor device comprising a field-effect transistor (fet) comprising a gate, a source, and a drain, all extending parallel to each other in a first direction; at least one source electrostatic discharge (esd) protection circuit; a source terminal disposed above and in electrical contact with the at least one source esd protection circuit, wherein the source terminal extends in the first direction; at least one drain esd protection circuit; and a drain terminal disposed above and in electrical contact with the at least one drain esd protection circuit, wherein the drain terminal extends in the first direction.. .
Globalfoundries Inc.

Display device and electronic apparatus

A liquid crystal display device includes a pixel substrate, a counter substrate, and a liquid crystal layer. The pixel substrate includes a pixel electrode and a common electrode.
Japan Display Inc.

Motorized system with position calibration, circuit protection and detection of motor stoppage

A motorized system that allows for calibration by a user, and that features circuit protection and detection of motor stoppage. A motorized window-blind system is an example of such a system and is disclosed herein.
Silvair Sp. Z O.o.

Protection circuit assembly and method

Single channel digital addressable lighting interface (dali) systems can include a dedicated external power supply that operates in a constant voltage/constant current mode to meet requirements of the dali bus. A lighting controller is powered from the dali bus.

Protection circuit

A protection circuit includes a periodicity determination device, an off circuit and a control device. The periodicity determination device directly or indirectly detects a noise superimposed on a first transistor including a control terminal and determines periodicity of the noise.

Protection circuit and switching power supply

A protection circuit 6 includes a bipolar transistor q1 that becomes on state and sets current that flows to a photo coupler 62 larger in case that a temperature detection element 63 supplies a detection signal, a control ic 4 that controls a switching element 3, and a protection power supply circuit 66 that includes a condenser c3 that is charged by output voltage from the switching power supply 1. Power supply voltage form the protection power supply circuit 66 is supplied to the temperature detection circuit 63 and the photo coupler 62.

Enhanced parallel protection circuit

An enhanced parallel protection circuit is provided. A system using separate battery packs in a parallel configuration is arranged with multiple protection circuit modules (pcms).

Semiconductor device and design same

A semiconductor device includes a semiconductor substrate having a predetermined region in which a standard cell is disposed, and also includes: a first circuit connected to a first ground power line; a second circuit that is connected to a second ground power line and formed from the standard cells; and a protection circuit interposed and connected between the first circuit and the second circuit. The protection circuit includes: a resistor connected in series between the first circuit and the second circuit; and a protector that is interposed and connected between a node of the resistor on the second circuit side and the second ground power line and clamps a potential difference between the node and the second ground power line to a predetermined voltage or lower.

Electronic switching and protection circuit with a logarithmic adc

An embodiment electronic circuit includes an electronic switch comprising a load path, a first protection circuit configured to generate a first protection signal based on a current-time-characteristic of a load current through the load path of the electronic switch, and a drive circuit configured to drive the electronic switch based on the first protection signal. The first protection circuit includes a logarithmic analog-to-digital converter (adc) configured to receive an adc input signal representing the load current and to output an adc output signal that includes a sequence of values such that each of the values represents a respective sample of the adc input signal, a filter configured to filter the adc output signal and output a filter output signal, and a comparator circuit configured to generate the first protection signal based on comparing the filter output signal with a predefined threshold..
Infineon Technologies Ag

Electronic switching and protection circuit

An embodiment electronic circuit includes an electronic switch comprising a load path, a first protection circuit configured to generate a first protection signal based on a current-time-characteristic of a load current through the load path of the electronic switch, and a drive circuit configured to drive the electronic switch based on the first protection signal. The first protection circuit includes an analog-to-digital converter (adc) configured to receive an adc input signal representing the load current, to sample the adc input signal once in each of a plurality of successive sampling periods, and to output an adc output signal that includes a sequence of values such that each of the values represents a respective sample of the adc input signal.
Infineon Technologies Ag

Smart senses for direct charging

In an embodiment, a device is discussed, the device comprising: a battery, a battery charging circuit configured to allow direct charging of the battery by an external charger, a battery protection circuit configured to protect the battery from damage, coupled to the battery charging circuit; and a connector comprising: at least one sense wire coupled to the battery to sense battery voltage, and at least one wire coupled to the battery via the battery charging circuit and the battery protection circuit, configured to charge the battery.. .
Microsoft Technology Licensing, Llc

Electronic switching and protection circuit with wakeup function

An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of a first operation mode and a second operation mode based at least on a level of a load current of the electronic switch.
Infineon Technologies Ag

Electronic switching and protection circuit with test mode function

An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch and configured to operate in one of a first operation mode and a test mode. The control circuit comprises a test mode input and is configured to operate in the test mode based on a test signal received at the test mode input.
Infineon Technologies Ag

Electronic switching and protection circuit with several operation modes

An embodiment electronic circuit includes an electronic switch comprising a load path, and a control circuit configured to drive the electronic switch. The control circuit is configured to operate in one of at least two operation modes.
Infineon Technologies Ag

Temperature detection device

A protection circuit includes a first sensor connecting path having a first overcurrent protection element and connecting one of terminals of a first temperature sensor to a sensor input circuit; a second sensor connecting path having a second overcurrent protection element and connecting one of terminals of a second temperature sensor to the sensor input circuit; a rectifying element connecting the first sensor connecting path, whose normal voltage is higher than a reference voltage line, to the reference voltage line in a section between the first overcurrent protection element and the sensor input circuit; and an overvoltage protection element connecting the second sensor connecting path, whose normal voltage is higher than the reference voltage line, to the reference voltage line in a section between the second overcurrent protection element and the sensor input circuit.. .
Toyota Jidosha Kabushiki Kaisha

Semiconductor device in a level shifter with electrostatic discharge (esd) protection circuit and semiconductor chip

The present disclosure relates to a semiconductor chip having a level shifter with electro-static discharge (esd) protection circuit and device applied to multiple power supply lines with high and low power input to protect the level shifter from the static esd stress. More particularly, the present disclosure relates to a feature to protect a semiconductor device in a level shifter from the esd stress by using esd stress blocking region adjacent to a gate electrode of the semiconductor device.
Magnachip Semiconductor, Ltd.

Ultrasound catheter for imaging and blood flow measurement

Rotational intravascular ultrasound (ivus) imaging devices, systems, and methods are provided. Some embodiments are directed to transducer mounting configurations that enable polymer piezoelectric micro-machined ultrasonic transducers (pmuts) to be used with a doppler color flow rotational ivus imaging system.
Volcano Corporation

Input overvoltage protection circuit

An input overvoltage protection circuit is equipped with a first wiring and a second wiring which are connected to a protected circuit in order to supply a voltage thereto, a fuse inserted in series in the first wiring and which interrupts a current flowing through the first wiring when a current greater than or equal to a predetermined value flows therethrough, a silicon surge absorber, one end of which is connected between the protected circuit and the fuse in the first wiring, and the other end of which is connected to the second wiring, and a bidirectional two-terminal thyristor connected to the first wiring and to the second wiring at a location between the silicon surge absorber and the protected circuit.. .
Fanuc Corporation

Electronic device with reverse voltage protection circuitry for multiple control lines

A host electronic device may be coupled to an accessory electronic device. The host device and the accessory device may be connected via power supply lines and user data lines.
Apple Inc.

Short-circuit protection circuit for self-arc-extinguishing type semiconductor element

A short-circuit protection circuit for a self-arc-extinguishing type semiconductor element includes a first protection circuit and a second protection circuit. The first protection circuit is configured to reduce a voltage between a control electrode and a first main electrode of the self-arc-extinguishing type semiconductor element when detecting overcurrent flowing between the first main electrode and a second main electrode.
Mitsubishi Electric Corporation

Fingerprint sensor having electrostatic discharge protection

A fingerprint sensor having electrostatic discharge (esd) protection includes a first esd protection electrode and a second esd protection electrode. The first esd protection electrode is connected to an esd protection circuit for providing an esd path, where the first esd protection electrode and a fingerprint sensor electrode array are formed in a same layer of the fingerprint sensor.
Elan Microelectronics Corporation

Apparatus and methods for overload protection of low noise amplifiers

Apparatus and methods for overload protection of low noise amplifiers (lnas) are provided herein. In certain configurations, an lna system includes an input switch having an analog control input that controls an impedance of the input switch, an lna that amplifies a radio frequency (rf) input signal received from the input switch, and an overload protection circuit that provides feedback to the input switch's analog control input based on detecting a signal level of the lna.
Skyworks Solutions, Inc.

Insulated synchronous rectification dc/dc converter

An insulated synchronous rectification dc/dc converter is provided. A feedback circuit drives a light-emitting element of a first photocoupler such that the output voltage vout of the dc/dc converter approaches a target voltage.
Rohm Co., Ltd.

Battery module

A battery module includes a plurality of battery cells arranged in one direction, each of the battery cells including electrode portions, a connection tab connecting adjacent battery cells of the plurality of battery cells, and a protection circuit module having one side end portion connected to the connection tab. The connection tab includes a body portion that contacts the electrode portions of the adjacent battery cells and an extension portion extending from the body portion, the extension portion being connected to the protection circuit module.
Samsung Sdi Co., Ltd.

Semiconductor device including electrostatic protection circuit

A semiconductor device includes: a first power source (ps1) pad supplied with a ps1 voltage; a ps1 line connected to the ps1 pad; a first ground line (g1); an output circuit operated using the ps1 voltage; a second power source (ps2) pad supplied with a ps2 voltage; a ps2 line connected to the ps2 pad; a second ground line (g2); a signal line connected to an output end of the output circuit; an input circuit connected to the signal line at an input end receiving a signal from the output end and operated using the ps2 voltage; a main protection circuit unit providing discharge routes between the ps1 pad and g1, g1 and g2, and g2 and the ps2 pad; and a sub protection circuit unit. The output circuit includes: a circuit element arranged between the ps1 line and the signal line and able to function as a resistive element..
Renesas Electronics Corporation

Display device and electronic device having the same

A display device includes a display panel including data lines, scan lines, and pixels, a scan driver configured to provide a scan signal to the pixels through the scan lines, a data driver configured to provide data signal to the pixels through the data lines, a voltage generator configured to provide an on-bias voltage to the pixels through the data lines, a timing controller configured to generate a first control signal that controls the data driver and a second control signal that controls the voltage generator, and a protection circuit configured to generate a first protection signal and a second protection signal and prevent an overlapping output of the data signal and the on-bias voltage based on the first control signal and the second control signal.. .
Samsung Display Co., Ltd.

Low side output driver reverse current protection circuit

Disclosed examples include integrated circuits, output driver circuits and protection circuits to protect an output transistor connected between a driver output node and a first intermediate node, including a resistor connected between the output node and a gate terminal of the output transistor, a diode connected between a second intermediate node and the output transistor gate terminal, and a switching device to electrically couple the second intermediate node with a reference node to turn on the output transistor to allow a second transistor to control a voltage of the output node when a control signal is in a first state, and to disconnect the second intermediate node from the reference node to prevent current flow through the resistor to control a gate voltage of the output transistor when the control signal is in a different second state.. .
Texas Instruments Incorporated

Power amplifier with input power protection circuits

An rf power amplifier circuit and input power limiter circuits are disclosed. A power detector generates a voltage output proportional to a power level of an input signal.

Overvoltage and overcurrent protection circuit and mobile terminal

The present disclosure provides an overvoltage and overcurrent protection circuit and a mobile terminal. The overvoltage and overcurrent protection circuit comprises a primary protection circuit and a secondary protection circuit.
Guang Dong Oppo Mobile Telecommunications Corp., Ltd.

Switching regulator

To provide a switching regulator equipped with an overheat protection circuit small in current consumption. A switching regulator of the present invention is configured to intermittently operate an overheat protection circuit only for a prescribed period based on a signal turning on a switching element, which is outputted from an output control circuit..
Sii Semiconductor Corporation

Route protection circuit and liquid crystal display

The circuit of the present invention comprises a detection module and a feedback module, wherein an output end of a power supply management module is coupled to one end of a voltage level shift module, and the other end of the voltage level shift module is coupled to a first end of the detection module, and a second end of the detection module is coupled to a woa route module or a goa route module, and a third end of the detection is coupled to one end of the feedback module, and the other end of the feedback module is coupled to an enable end of the power supply management module, and the detection module detects whether the woa route module or the goa route module is short, and feeds back a short signal; the feedback module receives the short signal, and sends a disable signal to the enable end.. .
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Regulator

A regulator includes a driving circuit, an amplifying circuit and an overvoltage protection circuit. The driving circuit is configured to receive an input voltage and provide an output voltage through an output terminal.
Realtek Semiconductor Corporation

Retrofit light emitting diode tube

Light sources for replacing fluorescent lamps comprise light circuits with light emitting diodes, first and second terminals located at first and second ends of the light sources for exchanging first signals with high-frequency ballasts, and converter circuits for converting the first signals into second signals for feeding the light circuits. The converter circuits comprise reactive circuits for matching the light circuits and the high-frequency ballasts and provide safety to persons when installing the light sources.
Philips Lighting Holding B.v.

Bi-directional snapback esd protection circuit

An esd protection circuit having a discharging transistor and a body snatching circuit. The discharging transistor is electrically coupled between a first node and a second node.
Monolithic Power Systems, Inc.

Explosion protection circuit with impedance matching

An apparatus for monitoring at least one physical or chemical process variable, comprising at least one sensor unit and an electronics unit for signal registration, evaluation and/or feeding, wherein the sensor unit is operated with alternating electrical current and/or communication between the electronics unit and the sensor unit occurs with alternating electrical current and/or alternating voltage. An explosion protection circuit with intrinsic safety, which includes a safety barrier, which has at least one unit for electrical current- and/or voltage limiting, is provided within the explosion protection circuit a unit for impedance matching, which unit for impedance matching includes at least one transformer..
Endress + Hauser Flowtec Ag

Overvoltage protection circuit and overvoltage protection control method

There is provided an overvoltage protection circuit including: a comparator configured to compare a dc voltage supplied to a first load by a power generator with a first value set based on an upper limit of an operating voltage of the first load; a storage element configured to be charged with a portion of a current generated by the power generator; and a switch configured to change a flow of the current so that: when the dc voltage is higher than the first value, the portion of the current is supplied to the storage element and a second load coupled to the storage element in parallel, and when the dc voltage is less than or equal to the first value, the storage element supplies the second load with power.. .
Fujitsu Limited

Esd protection circuit and method with high immunity to hot plug insertion and other transient events

Disclosed examples include an esd protection circuit to protect an ic pad with high immunity against hot-plug surges, switching noise or other transient voltage conditions on the protected pad. The esd protection circuit includes a clamp transistor and a trigger circuit responsive to rises in the protected pad voltage at or above a first slew rate to turn on the clamp transistor, as well as a second circuit coupled between the control terminal of the clamp transistor and a voltage supply node.
Texas Instruments Incorporated

Electrical energy storage device and electricity conducting mechanism thereof

An electrical energy storage device includes a casing, an input terminal set, an output terminal set, a protection circuit board, and an electricity conducting mechanism. At least one electrical energy storage unit is disposed inside the casing.
Yaray International Corporation

Apparatus and methods for actively-controlled transient overstress protection with false condition shutdown

Apparatus and methods for transient overstress protection with false condition shutdown are provided herein. In certain configurations, a high-voltage tolerant actively-controlled protection circuit includes a transient overstress detection circuit, a clamp circuit electrically connected between a first node and a second node, a bias circuit that biases the clamp circuit, and a false condition shutdown circuit.
Analog Devices, Inc.

Liquid crystal display

An lcd includes a substrate, gate on array (goa) units connected in series, a controller, a level shifter, and an over-current protection circuit. The substrate includes a pixel array section and a circuit arrangement section.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Fingerprint sensor, electronic device having the same, and operating the fingerprint sensor

A fingerprint sensor includes a pixel array and a controller. The pixel array includes a plurality of unit pixels arranged in rows and columns, each of the plurality of unit pixels including, a sensing electrode configured to form a detection capacitance with a finger, a signal generation circuit configured to output an analog signal through a column line based on the detection capacitance, and a protection circuit configured to control a voltage transfer between the sensing electrode and a common line.
Samsung Electronics Co., Ltd.

Skeleton i/o generation for early esd analysis

A design flow of an integrated circuit may include a skeleton input/output (i/o) generation stage during which information about esd protection circuitry and rails but not functional circuitry of the i/o cells of the integrated circuit is generated. The information may be used in an esd analysis stage to generate performance characteristics of the esd protection circuitry.
Sandisk Technologies Llc

Battery protection circuit and battery pack including same

A battery protection circuit includes a charging switch, a resistor, a charging controller, a switching circuit, a fuse circuit, and a fuse driving circuit. The charging switch is connected to a first electrode of a battery cell.
Samsung Sdi Co., Ltd.

Battery pack

A battery pack includes a protection circuit module for a plurality of battery cells arranged in parallel in a case. The protection circuit module includes a temperature sensor.
Samsung Sdi Co., Ltd.

Semiconductor device and stacking semiconductor die for system-level esd protection

A semiconductor device has a first semiconductor die including a first protection circuit. A second semiconductor die including a second protection circuit is disposed over the first semiconductor die.
Semtech Corporation

Semiconductor package having multi-phase power inverter with internal temperature sensor

According to an exemplary implementation, a semiconductor package includes a multi-phase power inverter having power switches and situated on a leadframe of the semiconductor package. The semiconductor package further includes a temperature sensor situated on the leadframe, where the temperature sensor is configured to generate a sensed temperature of the power switches.
Infineon Technologies Americas Corp.

Electrostatic protection circuit, semiconductor integrated circuit device, and electronic device

This electrostatic protection circuit enables a high hold voltage to be set, and acts to accurately prevent breakdown of a protected circuit immediately after power on, and to prevent breakdown or deterioration of a protection device during prolonged normal operation, without connecting a resistance element in parallel to a plurality of circuit blocks connected in series. This electrostatic protection circuit is provided with a plurality of circuit blocks connected in series between a first node and a second node, at least one circuit block out of the plurality of circuit blocks including a thyristor having an anode connected to one end of the at least one circuit block and a cathode connected to the other end of the at least one circuit block.
Seiko Epson Corporation

Electrostatic protection circuit, semiconductor integrated circuit device, and electronic device

This electrostatic protection circuit enables a trigger voltage to be set arbitrarily and enables a high hold voltage to be set, without providing an rc timer having a large circuit area. This electrostatic protection circuit is connected to a first terminal via a first node and is connected to a second terminal via a second node.
Seiko Epson Corporation

Overheat protection unit

When a temperature is less than a first threshold, a protection circuit unit executes a normal operation by a pulse width modulation. When the temperature is greater than or equal to the first threshold and is less than a second threshold, the protection circuit unit executes a first heat dissipation suppressing operation that suppresses a self-heating of a switching element.
Denso Corporation

Battery protective circuit

A battery protective circuit includes a battery controller, a charging control transistor, and a protection circuit. The battery controller controls charging of a battery according to a charging control voltage output through a charging control terminal.
Samsung Sdi Co., Ltd.

Semiconductor device

To provide a technique capable of reducing the chip size of a semiconductor chip and particularly, a technique capable of reducing the chip size of a semiconductor chip in the form of a rectangle that constitutes an lcd driver by devising a layout arrangement in a short-side direction. In a semiconductor chip that constitutes an lcd driver, input protection circuits are arranged in a lower layer of part of a plurality of input bump electrodes and on the other hand, in a lower layer of the other part of the input bump electrodes, the input protection circuits are not arranged but srams (internal circuits) are arranged..
Renesas Electronics Corporation

Dc-dc converter

To provide a synchronous rectification type dc-dc converter equipped with a protection circuit operated stably. There is provided a dc-dc converter equipped with a detection circuit which detects that electrical energy accumulated in an inductor is lost, or a timer circuit which counts a prescribed time after the protection circuit detects an abnormality.
Sii Semiconductor Corporation

Data interface with overvoltage protection for two-way digital control bus system

A data interface with overvoltage protection circuitry includes a bus interface and power rectification stage configured to provide supply and return voltages for the data interface and overvoltage protection circuitry, a first power level overvoltage protection circuit, a second power level overvoltage protection circuit, a dali endpoint power output port, a power supply for a dali endpoint device drawing current from the power output port, a receiver configured to receive signals on the dali bus, and, a transmitter configured to send signals on the dali bus.. .
General Electric Company

Solar photovoltaic output optimizer circuit

A solar photovoltaic output optimizer circuit includes a pv input device for receiving output of a solar photovoltaic panel; a switching device for converting a dc voltage input through the pv input device into a predetermined pulse voltage or ac voltage; and a voltage doubler rectification device for stepping up power output of the switching device to a predetermined voltage. The pv input device includes: an inductance l1 connected in series to “+” output of the pv panel; and a surge protection circuit that is connected in parallel to the inductance l1, operates so as to absorb surge voltage to occur in output of the inductance l1 only when output of the pv panel is small and normal control cannot be performed, and is automatically separated from the inductance l1 when the output of the pv panel is large..
Clean Energy Factory Co., Ltd.

Protection element, protection circuit, and semiconductor integrated circuit

Provided is the protection element including: a clamp mos transistor that has a drain coupled to a power supply line and a source coupled to a ground line; and a potential increasing circuit that increases a potential of a diffusion layer at the ground line side of the clamp mos transistor, more than a potential of the ground line. In this protection element, the potential of the diffusion layer coupled to the ground line of the clamp mos transistor is increased from the potential of the ground line, whereby an increase in current due to off-state leakage can be reduced while a sufficient drive current is ensured during an esd operation..

Field-effect transistor with protection diodes

A field-effect transistor with protection diodes includes: a field-effect transistor; and a two-terminal electrostatic protection circuit connected between a gate and a source of the field-effect transistor, wherein the two-terminal electrostatic protection circuit comprises: a first diode that is positioned on a reverse-biased side when a voltage lower than a potential of the source is applied to the gate and has a reverse withstand voltage lower than a reverse withstand voltage between the gate and the source of the field-effect transistor; a second diode that is positioned on a forward-biased side when a voltage lower than a potential of the source is applied to the gate and is connected in anti-series to the first diode; and a resistor that is connected in series to a diode pair comprising the first diode and the second diode and formed using a same channel layer as that of the field-effect transistor.. .
Mitsubishi Electric Corporation

Esd protection circuit

Electrostatic discharge (esd) protection circuitry in an integrated circuit is provided. The protection circuitry includes a trigger circuit coupled between a first power supply bus and a second power supply bus.
Freescale Semiconductor, Inc.

Onkyo Corporation

. .

Protection circuit and switching power supply

A protection circuit 5 includes a comparator 52 that supplies detection current i1 based on voltage vsens that a temperature sensor 51 outputs in case that voltage vsens that the temperature sensor 51 outputs exceeds voltage vref of predetermined potential, a control circuit 53 that supplies control current i2 that the control circuit 53 increases detection current i1 that the comparator 52 supplies exponentially, and a constant voltage circuit 54 reduces output voltage vout that is output from a switching power supply 1 based on control current i2 that the control circuit 53 supplies.. .

Power supply protection circuit and method

A power supply protection circuit and a method is described herein. The power supply protection circuit comprises a current control unit, a voltage feedback unit, and a current pull-up unit.
Joulwatt Technology (hangzhou) Co., Ltd.

Electronic control device

The purpose of the present invention is to provide an electronic control device including an integratable protection circuit that is capable of protecting an internal circuit, a sensor, etc., against both of surge voltage application and battery connection abnormality. The electronic control device includes an input terminal connectable to an external sensor and switch, and a power supply wiring and a gnd wiring that are utilized to supply power to the internal circuit, wherein protection elements each including a pn junction are connected between the input terminal and the power supply wiring or the gnd wiring, and protection resistor are further connected in series between the protection elements and the power supply wiring or the gnd wiring..
Hitachi Automotive Systems, Ltd.

Logging esd events

An electrostatic discharge (esd) logging system includes esd detection circuitry having at least one input electrically connected coupled to a node of an esd protection circuit. The esd detection circuitry provides a detector signal in response to detecting an esd event at the node of the esd protection circuit.
Texas Instruments Incorporated

Electrostatic discharge protection circuit with leakage current reduction and associated electrostatic discharge protection method

An electrostatic discharge (esd) protection circuit has an esd detection circuit, an esd clamp circuit, and a leakage current reduction circuit. The esd detection circuit generates an esd trigger signal when an esd event is detected in a normal mode.
Mediatek Inc.

Protection circuit for gate driver on array unit, and array substrate

A protection circuit for a gate driver on array (goa) unit, which relates to esd or eos protection for the gate goa unit. The protection circuit includes: a first voltage gating module configured to output, when a gate line signal output end should output a valid driving voltage of a gate driving signal, an output voltage of an output end of a first voltage source; and a first protection module, an input end of which is connected to an output end of the first voltage gating module, and an output end of which is connected to a gate line; wherein in the case where the output voltage of the first voltage source and a current output voltage of the gate line signal output end satisfies a first predetermined condition, the first protection module outputs the output voltage of the output end of the first voltage source as an adjusted gate driving signal..
Boe Technology Group Co., Ltd.

Drive circuit for semiconductor switching element

A drive circuit for a semiconductor switching element includes an overcurrent protection circuit, a short-circuit protection circuit, and a determination time changing circuit. The overcurrent protection circuit judges that a principal current become an overcurrent when a sense voltage proportional to magnitude of the principal current excesses over a first threshold value, and then reduces the principal current.
Calsonic Kansei Corporation

Enhanced parallel protection circuit

An enhanced parallel protection circuit is provided. A system using separate battery packs in a parallel configuration is arranged with multiple protection circuit modules (pcms).

Overcurrent protection assemblies for appliances

An overcurrent protection assembly for an appliance includes a cabinet configured to house the appliance, the cabinet including a body and a door, the door movable between an open position and a closed position. The overcurrent protection assembly further includes an overcurrent protection circuit, the overcurrent protection circuit including a switch and a current limiter.
General Electric Company

Semiconductor integrated circuit device

Diffusion regions having the same conductivity type are arranged on a side of a second wiring and a side of a third wiring, respectively under a first wiring connected to a signal terminal. Diffusion regions are separated in a whole part or one part of a range in a y direction.
Socionext Inc.

Electrostatic discharge protection circuit

The present invention provides an esd protection circuit electrically connected between a high voltage power line and a low voltage power line, and the esd protection circuit includes a bipolar junction transistor (bjt) and a trigger source. A collector of the bjt is electrically connected to the high voltage power line, and an emitter and a base of the bjt are electrically connected to the low voltage power line.
United Microelectronics Corp.

Fishing reel

A fishing reel configured to forwardly release a fishing line includes a reel unit, a spool rotatably supported by the reel unit, an electric power generator that generates an electric power upon a rotation of the spool, an electric component including a controller, an overvoltage protection circuit, and a bypass circuit. The controller operates using the electric power generated by the electric power generator.
Shimano Inc.

Power-up sequence protection circuit for avoiding unexpected power-up voltage

A power-up sequence protection circuit includes a first transistor, a second transistor, a third transistor, and a fourth transistor. First terminals of the first transistor, the second transistor, and the fourth transistor are coupled for receiving a program voltage.
Ememory Technology Inc.

E-cigarette and re-charging pack

A pack for containing and recharging an e-cigarette includes: a re-chargeable pack battery; a first connector which is electrically connectable to an external power source; a first recharging mechanism for re-charging the pack battery using the external power source when the first connector is electrically connected to the external power source; a second connector which is electrically connectable to an e-cigarette contained within the pack; and a second recharging mechanism for re-charging the e-cigarette when the e-cigarette is electrically connected to the second connector. The first recharging mechanism includes a first protection circuit module and the second re-charging mechanism includes a second protection circuit module, wherein the protection modules protect the pack and e-cigarette against excessive voltage or current during re-charging..
Nicoventures Holdings Limited

Voltage regulator

A safe and low-cost voltage regulator is provided through simplification of a circuit configuration of a protection circuit. The voltage regulator has a configuration in which current output of the protection circuit, which serves as a signal indicating that the protection circuit has started to operate, is input to a control circuit configured to improve responsiveness of the voltage regulator..
Sii Semiconductor Corporation

Battery protection circuit

A battery protection circuit includes a voltage source, a first resistor, a charging controller, a charging transistor, a second resistor, and a current voltage converter. The first resistor includes a first terminal connected to the voltage source.
Samsung Sdi Co., Ltd.

Over-current protection circuit and voltage regulators

A voltage regulator includes a control circuit, a switch circuit, a first over-current protection circuit, and a second over-current protection circuit. The control circuit generates a pulse-width modulation (pwm) signal having a duty cycle proportional to an output voltage of the voltage regulator.
Semiconductor Components Industries, Llc

Cable and power supply device

A cable includes: a cable part that includes a power supply line forming a power line; a connector that is provided on at least one of one end and another end of the cable part; and a circuit board that has a protection circuit including a temperature detection element and a switch that accepts a detection result of the temperature detection element to perform an operation of switchably conducting and interrupting the power line.. .
Sony Corporation

Semiconductor device

A semiconductor device includes a substrate, a power device, a protection circuit, a dielectric layer, a drain pad, a source pad, and a gate pad. The power device and the protection circuit are disposed on the substrate.
Delta Electronics, Inc.

Apparatus and methods for electrical overstress protection

Apparatus and methods for electrical overstress (eos) protection circuits are provided herein. In certain configurations, an eos protection circuit includes an overstress sensing circuit electrically connected between a pad and a first supply node, an impedance element electrically connected between the pad and a signal node, a controllable clamp electrically connected between the signal node and the first supply node and selectively activatable by the overstress sensing circuit, and an overshoot limiting circuit electrically connected between the signal node and a second supply node.
Skyworks Solutions, Inc.

Electrostatic discharge protection circuit, esd protection semiconductor device, and layout structure of esd protection semiconductor device

An esd protection semiconductor device includes a substrate, a buried layer buried in the substrate, a first well formed in the substrate, a first doped region formed in the first well, a second doped region formed in the first well and adjacent to the first doped region, a second well formed in the first well, and a third doped region formed in the second well. The buried layer, the first well, the first doped region, and the third doped region include a first conductivity type while the second doped region and the second well include a second conductivity type complementary to the first conductivity type.
United Microelectronics Corp.

Overcurrent protection circuit

An overcurrent protection circuit includes a load drive portion that drives a load based on a power supply voltage; a wire that connects the load and the load drive portion; a current detection portion that detects a load current showing a value of a current flowing through the load; a voltage detection portion; and a controller that controls the load drive portion to control a drive of the load, the controller determining an addition-and-subtraction value, controlling the load drive portion to cut off the load current, and stopping driving the load to protect a protection target from an overcurrent. The controller subtracts the integration value based on an elapsed time after cutoff of the load current.
Toyota Jidosha Kabushiki Kaisha

Switching power supply device

A switching power supply device includes: a switching output circuit configured to generate an output voltage from an input voltage; an oscillation circuit configured to generate a clock signal; a control circuit configured to control driving of the switching output circuit in synchronization with the clock signal; a pulse-by-pulse type overcurrent protection circuit configured to detect an overcurrent flowing through the switching output circuit to generate an overcurrent protection signal for forcibly stopping a switching operation of the switching output circuit; and a pulse skip circuit configured to perform a pulse skip operation of the clock signal in response to the overcurrent protection signal.. .
Rohm Co., Ltd.

Chip and electronic device

The present invention provides a chip and an electronic device. The chip comprises at least one pin, and the chip comprises at least one esd (electrostatic discharge) protection circuit inside, and the esd protection circuit is employed to reduce or eliminate a damage of electrostatic to other elements or circuit inside the chip, and the esd protection circuit is located corresponding to a pin, and the esd protection circuit is electrically coupled to the pin.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Battery pack

A battery pack includes: a plurality of battery cells arranged in parallel with each other, each of the battery cells comprising an electrode terminal at opposite ends thereof; a holder case configured to accommodate the battery cells; a protection circuit module mounted at an external side of the holder case and comprising a cell voltage measuring terminal facing the holder case; and a connection tab comprising a body part electrically connected to the electrode terminals of a group of the battery cells and an extended part extended from the body part to contact and be electrically connected with the cell voltage measuring terminal of the protection circuit module due to tension in the extended part.. .
Samsung Sdi Co., Ltd.

High voltage resistant transmitting circuit for devices communicating on dali bus

An apparatus includes a transmitting circuit and a power supply connected to a digital lighting interface bus, and a protection circuit configured to provide a first signal operable to disconnect the power supply and a second signal operable to disable the transmitting circuit when a voltage on the digital lighting interface bus exceeds a predetermined threshold. A method includes sensing a voltage on a digital lighting interface bus, and upon detecting that the voltage exceeds a predetermined threshold, providing a first signal operable to disconnect a power supply connected to the digital lighting interface bus and providing a second signal operable to disable a transmitting circuit supply connected to the digital lighting interface bus..
General Electric Company

Protection circuits for tunable resistor at continuous-time adc input

Continuous-time analog-to-digital converters (adcs) such as continuous-time delta-sigma adcs and continuous-time pipeline adcs, has input resistor structure at the input. The input resistor structure is typically tunable, and the tunability is usually provided by metal-oxide semiconductor field effect transistor (mosfet) switches.
Analog Devices Global

Current sensing in a power supply

During operation, a protection circuit receives an input voltage representative of current delivered by a power supply phase to a load. In one configuration, the input voltage is received as the voltage across respective drain-source nodes of a synchronous switch (low side switch) disposed in a power supply.
Infineon Technologies Americas Corp.

Power supply apparatus and providing power to an electronic device to prevent overcurrent discharge

For preventing overcurrent discharge, a protection method, a power supply apparatus, and an electronic device are disclosed. The power supply apparatus may include a power supply module and a protection circuit coupled to the power supply module and an electrical terminal.
Lenovo (beijing) Limited

High-voltage intelligent switch alternating current capacitor

Disclosed is a high-voltage ac capacitor for reactive power compensation of 10 kv-35 kv power grid, and in particular to a high-voltage ac capacitor with a high-voltage switching switch provided therein, as well as a structure for prolonging the service life of a thin film metalized high-voltage capacitor and a control method for prolonging the service life of the thin film metalized high-voltage capacitor. The ac capacitor is formed by multiple intelligent switch capacitor units connected in series, and each capacitor unit is formed by a switch contact (k11-kn1) and a capacitor (c1-cn) connected in series.
Gyrk International Technology Co., Ltd.

Esd protection circuit with false triggering prevention

An esd protection circuit used to protect a protected circuit coupled between a first node and a second node against an esd event. The esd protection circuit has a discharging circuit and a control circuit.
Monolithic Power Systems, Inc.

High-efficiency low-cost solar panel with protection circuitry

One embodiment of the invention can provide a solar panel. The solar panel can include a plurality of strings of photovoltaic strips sandwiched between a front cover and a back cover.
Solarcity Corporation

Electrostatic protection circuit, semiconductor integrated circuit device, and electronic device

Provided is an electrostatic protection circuit that has little leakage current under normal operation and allows a trigger voltage to be set comparatively freely, without requiring a special process step. This electrostatic protection circuit is provided with a series circuit including a transistor, a predetermined number of diodes and an impedance element that are connected in series between the first node and the second node, and a discharge circuit configured to send current from the first node to the second node following an increase in a potential difference that occurs between both ends of the impedance element, when the first node reaches a higher potential than the second node and current flows through the series circuit.
Seiko Epson Corporation

Explosion-proof circuit, charging circuit and charging/discharging protection circuit of battery

An explosion-proof circuit, a charging circuit and a charging/discharging protection circuit of a battery are disclosed. In the explosion-proof circuit and charging circuit of the battery, when a load is short-circuited, the voltage at the output end of a power electronic switch (q1) is close to the voltage of the negative electrode of the battery, and the voltage of the battery is divided by a control resistor (r9) and a feedback resistor (r15), so that a feedback control switch (q3) is switched on, thus enabling the power electronic switch (q1) to be in a cut-off state; the load current is cut off to protect the power electronic switch (q1) from damage; and meanwhile, the electric quantity of the battery is released in a relatively small safe current by a current limiting resistor (r7), the control resistor (r9) and the feedback resistor (r15), thereby avoiding the problem that the battery generates secondary hazards due to the fact that the electric quantity of the battery is stored in the battery and cannot be released.
Beijing Tocel Electronics Co., Ltd (cn)

Protection circuit assembly and high voltage systems

A circuit assembly and method use a breakover device that changes states in response to a change in electric energy in a helper circuit that supplies current from a power source to a powered system. The helper circuit includes an inductive element connected with the powered system.
General Electric Company

Protection circuit and device for hdmi identification port

A protection circuit for an hdmi identification port and a device having the same. The protection circuit includes a first switch circuit and a second switch circuit, wherein one end of the first switch circuit is connected to an hdmi power port, and the other end of the first switch circuit is connected to the second switch circuit; one end of the second switch circuit is connected to the first switch circuit and the other end of the second switch circuit is connected to the hdmi identification port; and the first switch circuit isolates a voltage loaded to the hdmi power port, and drives the second switch circuit to be conducted and uses a standby voltage as an identification voltage of the hdmi identification port..
Le Shi Zhi Xin Electronic Technology (tianjin) Limited

Hot-swap protection circuit

A hot-swap protection circuit includes: a hot-swap circuit, a hot-swap detection circuit, and an n-well generation circuit, where the hot-swap detection circuit is configured to detect whether hot-swap is performed on the hot-swap circuit, and feed back a detection result to the n-well generation circuit; and the n-well generation circuit is configured to receive the detection result fed back by the hot-swap detection circuit, and output a control signal according to the detection result, to protect the hot-swap circuit. The hot-swap detection circuit is used to detect whether hot-swap is performed on the hot-swap circuit, and the detection result is fed back to the n-well generation circuit, so that the n-well generation circuit outputs a control signal according to the detection result fed back by the hot-swap detection circuit, to protect the hot-swap circuit, thereby preventing the hot-swap of the hot-swap circuit from burning a host or a peripheral device..
Capital Microelectronics Co., Ltd.

Power supply grounding fault protection circuit

The present disclosure relates to a power supply grounding fault protection circuit. A power supply grounding fault protection circuit may include a power supply circuit, a leakage grounding detection circuit, a signal amplifying and shaping circuit, a microcontroller control circuit, a power supply detection and indicator circuit, a tripping mechanism control circuit, a reverse grounding detection and execution circuit, a wireless network circuit, and an automatic resetting circuit.
Ze Chen

Back power protection circuit

Described is an apparatus which comprises: one or more signal lines; a transceiver coupled to the one or more signal lines; and a bias generation circuit to provide one or more bias voltages for the transceiver to tri-state the transceiver according to signal attributes of the one or more signal lines.. .
Intel Corporation

Protective main board for battery cell, electronic terminal and assembling battery cell of electronic terminal

Disclosed are a protective main board for a battery cell, an electronic terminal and a method for assembling a battery cell of an electronic terminal. The protective main board for a battery cell includes a main board body and a conducting component.
Xiaomi Inc.

Film-type semiconductor packages and display devices having the same

A film-type semiconductor package includes a semiconductor integrated circuit and a dummy metal pattern. The semiconductor integrated circuit is formed on a film and includes an electrostatic discharge (esd) protection circuit.
Samsung Electronics Co., Ltd.

Electrostatic discharge (esd) protection circuit

The invention provides an esd (electrostatic discharge) protection circuit including a clamp circuit, a switch element, and a detection circuit. The clamp circuit is coupled between an esd bus and a ground node.
Mediatek Inc.

Gate driver on array short-circuit protection circuit and liquid crystal panel including the same

The short-circuit protection circuit for a gate driver on array (goa) liquid crystal panel contains a power module, a first booster module, a feedback module, and a second booster module series-connected in the this order. A control module is electrically connected to the first booster, feedback, and second booster modules.
Shenzhen China Star Optoelectronics Technology Co. Ltd.

Protection circuit

The invention provides a protection circuit applied in an inductive boost converter, the inductive boost converter includes a transmission circuit and a charging circuit, the protection circuit includes a detection circuit and a control circuit, an input terminal of the detection and an output terminal of the transmission circuit are connected, a first output terminal of the detection circuit and an input terminal of the charging circuit are connected, a second output terminal of the detection circuit and an input terminal of the control terminal are connected; the detection circuit detects whether an input current from the transmission circuit is a short-circuit current, if the circuit is shorted, the result will be sent to the control circuit, the control circuit cuts the connection of the charging circuit and ground, which can prevent charges stored in the charging circuit from flowing backward into the input terminal of the inductive boost converter.. .
Shenzehn China Star Optoelectronics Technology Co. Ltd.

Area-efficient active-fet esd protection circuit

An electrostatic discharge (esd) protection circuit includes a high power supply rail (vdd) and a low power supply rail (vss). The esd protection circuit further includes an active shunt transistor coupled between vdd and vss.
Texas Instruments Incorporated

Esd protection circuits

An esd protection circuit, which is coupled between either an i/o pad or a power pad and a ground terminal, includes a non-snapback device and a snapback device. When the voltage across the non-snapback device is not less than the non-snapback trigger voltage, the non-snapback device is turned on.
Vanguard International Semiconductor Corporation

Shared transient voltage suppressor having built-in-test capability for solid state power controllers

Embodiments are directed to a lightning protection circuit configured for use in a solid state power controller (sspc) having at least one feed line and a plurality of load lines. The lightning protection circuit includes a shared transient voltage suppressor and a transient isolator communicatively coupled to the shared transient voltage suppressor.
Hamilton Sundstrand Corporation

Display device

To make the dimension of an electrostatic protection circuit small with the same maintained high in sensitivity. The electrostatic protection circuit is of the configuration that a first diode and a second diode are connected in series, wherein a semiconductor layer owned by each diode is configured to be sandwiched between a gate electrode and a conductive light shielding film.
Japan Display Inc.

Voltage regulator

The voltage regulator includes an overheat protection circuit. The overheat protection circuit includes: a temperature sensing circuit; a voltage difference sensing circuit configured to output a current depending on a voltage difference between a power source voltage to be supplied to a power supply terminal and the output voltage; an output current monitoring circuit; a second reference voltage circuit configured to generate a second reference voltage; a comparator circuit configured to compare an output voltage of the temperature sensing circuit and the second reference voltage to each other; and an overheat protection transistor is configured to turn off the output transistor when the result of the comparison indicates an overheated state.
Sii Semiconductor Corporation

Tft arrays, display panels, and display devices

The present disclosure relates to an array substrate, a display panel and a display device. The array substrate includes gnd wirings and goa areas.
Wuhan China Star Optoelectronics Technology Co. Ltd.

Display drive chip

A display drive chip includes an electrostatic discharge (esd) protection circuit unit configured to protect a circuit from esd, an output including output pins for ouputting an output signal from a circuit disposed in an electric circuit region located in a central part of the display drive chip, a main voltage metal line electrically connecting the esd protection circuit unit and the output to each other in the electric circuit region, an auxiliary voltage metal line that is connected to the esd protection circuit unit and is disposed in a region of the chip outside the perimeter of the electric circuit region, and connection metal lines electrically connect the auxiliary voltage metal line and the output pins to each other.. .
Samsung Electronics Co., Ltd.

Transient voltage suppressor having built-in-test capability for solid state power controllers

Embodiments are directed to a transient protection circuit configured for use in a sspc having a plurality of power channels. The transient protection circuit includes a shared transient voltage suppressor, and a shared protection line communicatively coupled to the shared transient voltage suppressor.
Hamilton Sundstrand Corporation

Broadband surge suppression module having optical coupling channel

A broadband surge suppression module having an optical coupling channel includes a surge protection circuit unit for eliminating or limiting a surge signal from an input digital signal, a light-emitting circuit unit for receiving an output signal of the surge protection circuit unit, converting the output signal into an optical signal, and transmitting the optical signal, a light-receiving circuit unit for receiving the optical signal from the light-emitting circuit unit, a signal restoration circuit unit for restoring a digital signal from an output signal of the light-receiving circuit unit, and a module casing unit for allowing the surge protection circuit unit, the light-emitting circuit unit, the light-receiving circuit unit, and the signal restoration circuit unit to be located therein, the module casing unit being formed to penetrate through an electromagnetic shielding wall for protecting a control system.. .
Electronics And Telecommunications Research Institute

Protection circuit

A protection circuit may include a first power line and a second power line, a plurality of high voltage interconnections, a plurality of low voltage interconnections, first and second pickup active regions, a high voltage protection transistor, and a low voltage protection transistor. The first power line and the second power line extending in parallel to each other while facing each other, and a plurality of high voltage interconnections are coupled to the first power line and extend toward the second power line while being spaced apart from each other.
Sk Hynix Inc.

Silicon-controlled rectifier current-protection circuit, related operating method, and dimming circuit and lighting device containing the same

The present disclosure provides a silicon-controlled silicon (scr) current-protection circuit. The scr circuit includes an scr detection circuit and a protection circuit, a first terminal of the scr detection circuit being connected to a current sampling point on an output terminal of an scr device, a second terminal of the scr detection circuit being connected to a power conversion circuit, a third terminal of the scr detection circuit being connected to a first terminal of the protection circuit, and a second terminal of the protection being connected to the power conversion circuit.

Adaptive open-load overvoltage control method and circuit

An overvoltage protection circuit and a method for protecting against an output from a power supply reaching overvoltage levels is provided. The overvoltage protection provides two operational modes for the power supply.

Combined active and passive high-power rf protection circuit

An electronic system comprising: 1) an antenna; 2) a transmission line coupled to the antenna; 3) rf electronics circuitry coupled to the transmission line that is sensitive to a high frequency emi/rf signal on the transmission line; and 4) a protection circuit comprising passive mode circuitry operational when the electronic system is powered off and active mode circuitry operational when the electronic system is powered on.. .

Ac overvoltage protection circuit

A power converter for operation from an ac power source may include a bridge rectifier having an input to receive an ac input voltage and an output to provide a dc voltage, the ac input voltage received from the ac power source through a fuse. An ac input overvoltage protection circuit may be configured to cause a short circuit across the ac input voltage in response to the dc voltage output from the bridge rectifier exceeding a predetermined voltage value for a predetermined period of time..

Driver circuit, manufacturing the driver circuit, and display device including the driver circuit

Provided are a driver circuit which suppresses damage of a semiconductor element due to esd in a manufacturing process, a method of manufacturing the driver circuit. Further provided are a driver circuit provided with a protection circuit with low leakage current, and a method of manufacturing the driver circuit.

Semiconductor device

An esd protection device including a si substrate with an esd protection circuit formed at the surface of the substrate; pads formed on the si substrate; a rewiring layer opposed to the surface of the si substrate, which includes terminal electrodes electrically connected to the pads. The rewiring layer includes a sin protection film formed on the surface of the si substrate to cover parts of the pads except regions in contact with openings (contact holes) formed in a resin layer, and the resin layer that is lower in dielectric constant than the sin protection film, and formed between the sin protection film and the terminal electrodes.

Load side blocking charger voltage from a battery load

Methods and apparatus for a protection circuit for a battery and a battery connected device during charging are provided. In one embodiment, the apparatus includes a load-blocking switch connected between a rechargeable battery and an electronic device and a charge-blocking switch connected between the rechargeable battery and a charger.
Motorola Solutions, Inc.

Battery pack and manufacturing the same

Disclosed is a battery pack including: a plurality of serially connected cells; a protection circuit module electrically connected with the plurality of cells; and a plurality of lead tabs configured to electrically connect the plurality of cells to the protection circuit module, in which the protection circuit module includes a plurality of connection portions, which is arranged in a row and connected with the plurality of lead tabs, respectively, and the plurality of lead tabs overlaps in an order in which the plurality of connection portions is arranged, so that an assembling process time is decreased.. .
Samsung Sdi Co., Ltd.

Liquid crystal display

A liquid crystal display device includes a plurality of pixel units, an electrode line surrounding the pixel units, at least one gate driver coupled with the pixel units via a plurality of gate lines, and at least one electrostatic discharge protection circuit coupled with the at least one gate driver and the electrode line.. .
Hannstar Display Corporation

Drive device for semiconductor element

A drive device to drive a semiconductor element includes: an identification signal generating circuit generating an identification signal depending on a type of an input error signal; a protection operation signal generating circuit generating a protection operation signal having a pulse width equal to that of one of the error signal and the identification signal having a longer pulse width; an identification signal terminal inputting and outputting the identification signal; a protection operation signal terminal inputting and outputting the protection operation signal; and a protection circuit performing an error protection operation depending on an own-phase protection operation signal generated by the protection operation signal generating circuit and an other-phase protection operation signal input through the protection operation signal terminal.. .
Mitsubishi Electric Corporation

Overcurrent protection circuit

An overcurrent protection circuit for use in a power supply system to control switching on of the circuit. The circuit is connected between a voltage source and a load.
Powerbyproxi Limited

Overvoltage protection self-trigger circuit for double fed induction generator (dfig) wind power system

Provided is an overvoltage protection device for protecting a wind turbine against overvoltage. The device includes a double fed induction generator (dfig) including a rotor connection including a plurality of electrical connections coupled to rotor leads of the dfig and a stator connection including a plurality of electrical connections coupled to stator leads of the dfig.
Ge Energy Power Conversion Technology Ltd

Battery management system for control of lithium power cells

An intelligent rechargeable battery pack having a battery management system for monitoring and controlling the charging and discharging of the battery pack is described. The battery management system includes primary and secondary protection circuits for monitoring the charging and discharging of the battery.
Zoll Circulation, Inc.

Battery pack

A battery pack includes: a core pack; a protection circuit module electrically connected to the core pack and including a connector for further electrically connecting to an external electronic device; and a metallic cover for covering the core pack and the protection circuit module while exposing the connector to the outside, the metallic cover including a protrusion adjacent to a ground portion of the connector.. .
Samsung Sdi Co., Ltd.

Semiconductor device

A semiconductor device includes a first circuit 1 and a second circuit 2 that are connected in series, a first terminal t1 that applies a first potential to a first power supply line dl1 of the first circuit 1, a second terminal t2 that applies a second potential to a second power supply line dl2 of the second circuit 2, a third terminal t3 that is connected to a signal transfer line of the first circuit 1, and a protection circuit that is connected to the third terminal t3, and discharges a current from the third terminal t3 to a fourth terminal t4 when a potential of the third terminal t3 becomes higher than a first threshold value. The first power supply line dl1 and the second power supply line dl2 are separated, and the fourth terminal t4 is not directly connected to the first power supply line dl1 and is electrically connected to a lead..
Thine Electronics, Inc.

Overheat detection circuit, overheat protection circuit, and semiconductor device

Provided is an overheat detection circuit capable of easily adjusting a detection temperature of the overheat detection circuit. The overheat detection circuit includes: a first resistor; a second resistor, which has the same temperature characteristics with the first resistor, and has an adjustable resistance value; and a heat sensitive element connected to one end of the second resistor, in which a first current, which is based on a first voltage, is supplied to the first resistor, a current, which is proportional to the first current, is supplied to the second resistor so that a second voltage is generated at another end of the second resistor, and when the first voltage and the second voltage are compared, a result of the comparison is output as an overheat detection signal..
Sii Semiconductor Corporation

Overvoltage protection circuit, led backlight driving circuit and lcd

An ovp circuit includes a voltage boost circuit, for boosting an input voltage into an output voltage in need and providing the output voltage to a load, a voltage control module for controlling the voltage boost circuit to boost an input voltage into an output voltage in need and for providing the output voltage to the load, an overvoltage protection module for monitoring a voltage of a positive terminal of the load to enable or disable the voltage control module, and an overvoltage adjusting module for monitoring an operation voltage of the load to adjust the overvoltage. It effectively prevents from the abnormal operation attributed by over practical operation voltage or prevents components from damage attributed by tardy protection.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Protection circuit for power amplifier

A power amplifier comprising a power stage comprises a voltage detection circuit configured to detect an output voltage of the power stage, a current detection circuit configured to detect an output current of the power stage, a control voltage generation circuit configured to generate a control voltage substantially proportional to the detected output voltage and the detected output current, and a control circuit configured to decrease an output power of the power stage when the control voltage exceeds a predetermined value.. .
Avago Technologies General Ip (singapore) Pte. Ltd

Method and system for overcurrent protection for insulated-gate bipolar transistor (igbt) modules

Circuits and methods for driving a load are disclosed. An exemplary driving circuit may include first and second switching devices electrically connected with each other in parallel.
Faraday&future Inc.

Multi-level output circuit having centralized esd protection

An apparatus is described. The apparatus includes an electronic circuit includes multiple supply voltage nodes, an output node and an internal node.

Esd protection and limiter circuit

Electrostatic discharge protection circuits and methods of operation are described. An esd circuit may include two circuit branches, each including a transistor, that are arranged to shunt voltage and current between two circuit terminals responsive to an over-voltage condition between the two terminals.
Macom Technology Solutions Holdings, Inc.

Esd protection circuit with two discharge time periods

An electrostatic discharge protection circuit may include discharge path circuitry to discharge charge on a supply line in response to detection of an esd event. The charge on the supply line may be discharged through the discharge path circuitry from when a first timing window opens until a second timing window closes.
Sandisk Technologies Inc.

Battery module

A battery module is disclosed. In one aspect, the battery module includes a plurality of rechargeable batteries and a plurality of electrode tabs connecting the rechargeable batteries.
Samsung Sdi Co., Ltd.

Wide bandgap junction barrier schottky diode with silicon bypass

A silicon surge bypass diode is co-packaged with a high bandgap junction barrier schottky diode. The co-packaged diodes may be used in a power circuits such as power factor correction circuits, converters, inverters circuit, motor drives, and protection circuits, for example.
United Silicon Carbide, Inc.

Protection circuit and electronic device

A protection circuit includes a control circuit that controls current between a first wiring and a second wiring and an application circuit that applies a voltage to the control circuit. The control circuit includes a first thin film transistor that controls the current.
Nlt Technologies, Ltd.

Surge protective device and surge protective system

A surge protective device (spd) includes a jack and a plug detachably attached by insertion to the jack. Inside the plug, a protection circuit which protects equipment to be protected against intruding lightning surge, a degradation detecting unit which detects a degradation state of the protection circuit, a display unit which displays the detection result, or the like, are provided.
Sankosha Corporation

System for implementation of i2t trip characteristic

There is provided a protection circuit configured to indicate an overcurrent condition of a conductor conducting a load current, the protection circuit including a first current integrator and a second current integrator, each of the first and second integrators being configured to integrate an input voltage proportional to the load current, a summing amplifier configured to receive an offset voltage, to amplify a signal from the second integrator, and to generate a trip threshold based on the input voltage and the offset voltage, and a comparator configured to compare an output of the first current integrator and the trip threshold, and to generate a trip signal at a trip time when the trip threshold is equal to an output of the first integrator, the trip signal indicating an overcurrent condition.. .
Leach International Corporation

Battery monitoring system and semiconductor device

A battery monitoring system includes a plurality of battery cells connected in series; a cell voltage measurement circuit for measuring a voltage of the battery cells; a first terminal connected to the cell voltage measurement circuit; a second terminal having a potential higher than that of the first terminal; and a protection circuit connected to the second terminal for discharging an electric current to the second terminal so that the cell voltage measurement circuit is protected.. .
Lapis Semiconductor Co., Ltd.

Plug connector and adapter

The invention provides a plug connector which, when abnormal heating occurs in a fitting portion with a counter connector, can sensitively cut off the current supply. The plug connector has: contacts; a body that holds the contacts; a metal shell that covers the body; and a printed circuit board on which the contacts are solder-connected.
Hosiden Corporation

Integrated circuit having an electrostatic discharge protection function and an electronic system including the same

An integrated circuit includes a data processing circuit, an electrostatic discharge (esd) protection circuit which is connected between a voltage rail and a ground rail and protects the data processing circuit from an esd event on the voltage rail, and a switch circuit for controlling a connection between the voltage rail and the data processing circuit in response to a control signal.. .
Samsung Electronics Co., Ltd.

Overvoltage protection circuitry

Overvoltage protection circuitry configured to protect internal integrated circuits within an implantable device in the presence of a high voltage event such as defibrillation or electrocautery. The circuitry allows for an internal node to rise above the voltage level of the high voltage event to insure that an overvoltage protection element is triggered, even if the voltage level of the high voltage event is below the voltage trigger level of the overvoltage protection element..
Medtronic, Inc.

Protection circuit

A protection circuit applied to a convertor including m pieces of driving switch modules each coupled to a power source, a load and one of m sets of driving signals. The ith driving switch module is controlled by the ith set of driving signals to selectively enable current paths between the power source and the load.
Industrial Technology Research Institute

Machine having at least one motor and one machine protection circuit

A machine, specifically a pump, a compressor, an agitator or a hoist, includes at least one motor and one machine protection circuit that includes a measurement device having at least one sensor for monitoring at least one parameter of the machine and includes an analysis device for analysing the parameters measured by the sensor and for activating a machine protection relay for switching off the machine. A switch cabinet positioned away from the machine is provided, and the machine protection circuit is spatially separated by the measurement device being arranged in the machine, and by the analysis device and the machine protection relay being arranged in the switch cabinet..
Kriwan Industrie-elektronik Gmbh

Scrs with checker board layouts

An electro-static discharge (esd) protection circuit includes a plurality of groups of p-type heavily doped semiconductor strips (p+ strips) and a plurality of groups of n-type heavily doped semiconductor strips (n+ strips) forming an array having a plurality of rows and columns. In each of the rows and the columns, the plurality of groups of p+ strips and the plurality of groups of n+ strips are allocated in an alternating layout.
Taiwan Semiconductor Manufacturing Company, Ltd.

Ac direct drive lamp having leakage current protection circuit

An ac direct drive lamp including a leakage current protection circuit includes an input stage configured to receive external power, a rectification circuit configured to rectify the external power received from the input stage, a control module electrically connected to the output stage of the rectification circuit and configured to sense and control the state of at least one of the rectification circuit, a switch module, and a light source, the switch module connected between the input stage and the control module in a feedback form and configured to switch on/off depending on a predetermined condition, and the light source electrically connected to the control module and configured to radiate light when power is applied.. .
Lg Innotek Co., Ltd.

Loudspeaker protection circuitry and methods

This application relates to methods and apparatus for thermal protection of a loudspeaker (102). A controller (106) is configured to generate a control signal (gmod) for modulating the gain of a signal processing chain (101) that drives the loudspeaker.
Cirrus Logic International Semiconductor Ltd.

Hot plugging protection

An overcharge protection circuit comprises a first series of first terminals a second series of second terminals, a first overvoltage protection device connected between each consecutive pair of first terminals, a current balancing device connected between each consecutive pair of second terminals, and a second overvoltage protection device connected between a first terminal and a second terminal. The second overvoltage protection device is configured to pass a current if a voltage over the second overvoltage protection device exceeds a threshold.
Freescale Semiconductor, Inc.

Semiconductor device

A semiconductor device includes an integration of a first external terminal to which a dc input voltage is input, a second external terminal to which a rectifying and smoothing circuit is externally connected, an output transistor connected between the first external terminal and the second external terminal, a control circuit arranged to turn on and off the output transistor so that a desired dc output voltage can be obtained from the rectifying and smoothing circuit, a current detection circuit arranged to generate a sense voltage corresponding to an on-current of the output transistor, and an overcurrent protection circuit arranged to monitor the sense voltage so as to perform an overcurrent protection operation. The overcurrent protection circuit performs a first overcurrent protection operation of a pulse-by-pulse method when detecting that the sense voltage exceeds a first threshold value voltage, and performs a second overcurrent protection operation of a timer latch method when detecting that the sense voltage continues to increase though the first overcurrent protection operation is being performed..
Rohm Co., Ltd.

Electrical device protection circuit for smart grid

An electrical device protection circuit for a smart grid includes a detection unit for detecting whether or not the output power source of an electrical device short-circuits; a switch unit for connecting power, input to the electrical device, to the output power source of the electrical device or disconnect it therefrom; and a control unit for generating a control signal for making the switch unit disconnect the power input to the electrical device from the output power source of the electrical device. According to the electrical device protection circuit for a smart grid, a simply configured protection circuit, arranged in the electrical device, to operates when the output power source of the electrical device short-circuits, whereby the electrical device may be prevented from being damaged..
Ezex Corporation

Semiconductor esd protection device and method

According to an embodiment, an electrostatic discharge (esd) protection circuit includes a first transistor having a first source/drain coupled to a first input/output terminal, a second source/drain coupled to a first reference voltage terminal, and a gate coupled to a second reference voltage terminal. The esd protection circuit further includes a direct current (dc) blocking circuit having a first input/output node coupled to the first input/output terminal, a second input/output node configured to be coupled to a useful circuit, and a third input/output node coupled a gate of the first transistor..
Infineon Technologies Ag

Portable lighting devices

A flashlight uses a reverse battery protection circuit to prevent current from flowing in a power control circuit when at least one battery is held in a reversed orientation, rather than a correct orientation, in a battery compartment of the flashlight.. .
Mag Instrument, Inc.

Multiple-unit semiconductor device

A multiple-unit semiconductor device (1) includes a normally-on type first fet (11) and a normally-off type second fet (12) that are connected to each other in series between a first terminal and a second terminal (17 and 19). The multiple-unit semiconductor device (1) further includes a protection circuit that includes a switching element for discharge (16) connected to the second fet in parallel and a trigger circuit that is disposed between the first terminal and the second terminal (17 and 19) and causes the switching element for discharge to turn to an on state when a surge is applied to the first terminal..
Sharp Kabushiki Kaisha

Ballast stabilizer-compatible lamp having leakage current protection circuit

A ballast stabilizer-compatible lamp including a leakage current protection circuit includes a first input stage configured to receive first external power, a second input stage configured to receive second external power, a first switch module electrically connected to the first input stage and configured to switch on/off depending on a predetermined condition, a second switch module electrically connected to the second input stage and configured to switch on/off depending on a predetermined condition, an overvoltage protection circuit electrically connected to the first switch module and the second switch module and configured to prevent an overvoltage, a control module electrically connected to the overvoltage protection circuit and configured to sense and control the state of the first switch module, the first switch module, and the overvoltage protection circuit, and a light source electrically connected to the control module and configured to radiate light when power is applied.. .
Lg Innotek Co., Ltd.

Overcharge protection circuit and controlling the same

An overcharge protection circuit may include a battery, a battery management system (bms) having an overcharge sensing unit for detecting cell voltage of the battery, comparing the cell voltage with a preset overcharge voltage, and then generating either a signal indicative of normal connection of the battery or an overcharge signal depending on a result of the comparison and a switch control unit for generating a control signal depending on a result of comparing a hold-up time of the overcharge signal with a preset hold-up time of the overcharge signal, and a switch for connecting or blocking a power source for supplying charging power to the battery in response to the control signal.. .
Hyundai Mobis Co., Ltd.

Short-circuit protection circuit for voltage sampling resistor of primary side converter

Disclosed is a short-circuit protection circuit for a voltage sampling resistor of a primary side converter, comprising a high voltage power transistor, a high voltage starting resistor, a first voltage dividing resistor of a port vdd, a second voltage dividing resistor of the port vdd, an nmos transistor, a diode, a first comparator, a second comparator, a third comparator, a time delay circuit, a filter, a first logic circuit, a second logic circuit, a current supply, a first and gate and a first inverter. The chip of the present disclosure is capable of correctly and effectively detecting whether the sampling resistor is shorted or not before the chip works normally, thereby avoiding the risk of damaging the chip by large current from the voltage feedback port fb due to turn-on of the switching transistor when the upper voltage sampling resistor is shorted, and greatly reducing the input power..
Wuxi Chipown Micro-electronics Limited

Semiconductor device

A semiconductor device for driving a load includes: a protection circuit configured to be connected to the load, the protection circuit including a protection diode, a diode-connected unipolar protection element, and a diode-connected bipolar protection element, all of which are connected in parallel so that when connected to the load, the protection diode, the diode-connected unipolar protection element, and the diode-connected bipolar protection element are connected in parallel to the load; and a switching circuit that is connected in series to the protection circuit and that performs a switching operation so as to drive the load. The protection diode, the diode-connected unipolar protection element, and the diode-connected bipolar protection element are connected in such a polarity that each is reverse-biased when the switching circuit is turned on, and consume a discharge current resulting from a counter-electromotive force from the load when the switching circuit is turned off..
Fuji Electric Co., Ltd.

Battery module

A battery module, including a plurality of rechargeable batteries; a holder fixing the rechargeable batteries; an electrode tab connecting the rechargeable batteries, the electrode tab including a bent portion bent and then extending in a side direction of the rechargeable batteries; and a balancing wire connecting the electrode tab and the protection circuit board, the bent portion of the electrode tab including a protruding portion protruding from a surface of the electrode tab.. .
Samsung Sdi Co., Ltd.

Electrostatic discharge protection circuit

In the disclosure, an electrostatic discharge (esd) protection circuit is coupled between a first power rail and a second power rail to discharge any esd stress. The esd protection circuit includes a detection circuit, a triggering circuit, and a dual silicon controlled rectifier (dscr) device.
Novatek Microelectronics Corp.

Semiconductor device

There is provided a semiconductor device capable of suppressing generation of leakage current of a diode, by applying a voltage to a gate of a gated junction diode (gjd). The semiconductor device includes an internal circuit connected with an input-output terminal, and an electrostatic discharge (esd) protection circuit configured to protect the internal circuit from esd, the esd protection circuit including a first diode, wherein the first diode includes a first gate which is formed on a substrate and to which a first recovery voltage is applied, a first well of a first conductivity type which is formed within the substrate and under the first gate, a first impurity region of the first conductivity type which is formed on one side of the first gate and within the first well and is higher in doping concentration than that of the first well, and a second impurity region of a second conductivity type which is formed on other side of the first gate and within the first well..
Samsung Electronics Co., Ltd.

Static electricity protection circuit, semiconductor integrated circuit device, and electronic apparatus

This static electricity protection circuit starts a discharge operation only if an applied voltage is greater than or equal to a set voltage, and protects a discharge circuit also when noise or the like is applied during a normal operation. This static electricity protection circuit includes: a resistor r1 and clamp circuit that are connected in series between nodes n1 and n2; a first transistor that turns on in accordance with an increase in a potential difference generated in the resistor r1; a resistor r2 and capacitor c2 that are connected via a node n4 between the nodes n1 and n2; a second transistor that is connected in series with the first transistor between the nodes n1 and n5; a resistor r3 connected between the nodes n5 and n2; a third transistor connected between the nodes n4 and n2; and a discharge circuit connected between the nodes n1 and n2..
Seiko Epson Corporation

Battery pack

Provided is a battery pack, which can provide a space for mounting an external element or an external device by forming a stepped portion in a protection circuit module (pcm). The battery pack includes a bare cell having a positive lead tab and a negative lead tab, a protection circuit module (pcm) electrically connected to the positive lead tab and the negative lead tab and having a stepped portion recessed from one side to the other side and having a smaller height than a peripheral portion, and a first insulating member having a groove formed to correspond to the stepped portion and surround at least a portion of the bare cell and the pcm..
Samsung Sdi Co., Ltd.

Display panel and display device having the same

A display panel includes: an electrostatic discharge (esd) protection circuit area in a peripheral area surrounding a display area including pixels, the esd protection circuit area including esd protection circuits; a fan-out area in the peripheral area, including fan-out lines to receive data signals and a first pad to receive a first global signal; a common line area between the esd protection circuit area and the fan-out area, including a first common line extending lengthwise in a pixel row direction; a first transmission line connecting lengthwise from the first pad to the first common line to transmit the first global signal to the first common line; and first global signal lines extending lengthwise in a pixel column direction from the first common line to the display area to concurrently transmit the first global signal to the pixels. The first transmission line is wider than the first global signal lines..
Samsung Display Co., Ltd.

Wearable device and electrostatic discharge protection circuit of the same

A wearable device is provided. The wearable device includes a first functional module, at least one exposed contact, a second functional module, an esd protection circuit that converts an esd input to an output voltage when the esd input occurs, a detection module that detects whether the exposed contact is connected to an external electronic module, a switch module and a processing module.
Htc Corporation

Protection an electrical load, voltage converter comprising a protection apparatus, and protecting an electrical load

An apparatus and a method for protecting an electrical load, in particular an electrical load having an inductance. For this purpose, the present invention provides a protection apparatus comprising an overcurrent protection device and a protection circuit.
Robert Bosch Gmbh

Liquid crystal display panel

A liquid crystal display panel is disclosed. The liquid crystal display panel comprises a testing region, which comprises testing lines.
Shenzhen China Star Optoelectronics Technology Co., Ltd.

Protection circuit for power amplifier

A radio frequency device includes a radio frequency (rf) power amplifier (pa) circuit including a driver stage configured to amplify an input signal to generate an output signal and a power stage configured to amplify the output signal, a first bias circuit configured to supply a first bias current to the driver stage, a second bias circuit configured to supply a second bias current to the power stage, and a protection circuit configured to limit a current flowing in the rf pa. The protection circuit is coupled between the first bias circuit and the second bias circuit..
Avago Technologies General Ip (singapore) Pte. Ltd.

Voltage regulator

To provide a voltage regulator equipped with an overcurrent protection circuit which needs not to separately adjust a limited current and a short-circuited current and is capable of collectively adjusting them. There is provided an overcurrent protection circuit equipped with an output current limitation circuit which distributes a current supplied from a transistor sensing an output current of an output transistor and controls a gate voltage of the output transistor by the distributed current to limit the output current.
Sii Semiconductor Corporation

Reverse current protection circuit

In described examples, a power interface subsystem includes power transistors, each having: a conduction path coupled between a battery terminal and an accessory terminal; and a control terminal. A differential amplifier has: a first input coupled to the battery terminal; a second input coupled to the accessory terminal; and an output node.
Texas Instruments Incorporated

Ground fault protection circuit and ground fault circuit interrupter

The present invention relates to a ground fault protection circuit and a ground fault circuit interrupter. A ground fault protection circuit may include a power supply circuit, a ground fault detection circuit, a signal amplifying and shaping circuit, a microcontroller control circuit, a power supply detection and indicator circuit, a tripping mechanism control circuit, and a reverse grounding detection and execution circuit.

Static electricity protection circuit, electro-optic device and electronic device

In a static electricity protection circuit according to the invention, a first wiring is electrically connected to a drain of a first p-type transistor and a gate and a source of a first n-type transistor; a second wiring is electrically connected to a gate and a source of the first p-type transistor, a drain of the first n-type transistor, a drain of a second p-type transistor and a gate and a source of a second n-type transistor; and a third wiring is electrically connected to a gate and a source of the second p-type transistor and a drain of the second n-type transistor.. .
Seiko Epson Corporation

Semiconductor device, liquid crystal display panel, and mobile information terminal

A semiconductor device includes a plurality of sets of external drive terminals in a marginal region along one long side of a rectangular semiconductor substrate, a plurality of sets of esd protection circuits arranged in the marginal region and coupled to corresponding sets of the drive terminals, and a plurality of output circuits coupled to corresponding sets of the drive terminals. Each set of drive terminals in a plurality of n columns along a y direction is laid out in a staggered arrangement with drive terminals in adjacent columns shifted relative to each other.
Renesas Electronics Corporation

Overdrive receiver circuitry

Various implementations described herein are directed to an integrated circuit. The integrated circuit may include signal generation circuitry that receives an input signal from a first voltage domain and generates multiple internal signals based on the input signal.
Arm Limited

Power supply circuit with active under-voltage protection

A power supply circuit includes a protection circuit interconnected with an input voltage to the power supply. The protection circuit includes a detection circuit to detect whether a magnitude of the input voltage is below a defined threshold.
Siemens Canada Limited

Circuits and devices related to overcurrent protection

Circuits and devices related to overcurrent protection. In some embodiments, a voltage converter can include a voltage converting circuit configured to receive an input voltage and generate an output voltage.
Skyworks Solutions, Inc.

Gate protection circuit and display device including the same

A gate protection circuit includes: a clock signal generator to generate a plurality of gate clock signals; a gate driver to output gate signals based on the plurality of gate clock signals, the gate driver including a plurality of gate driving circuits cascaded to each other; and a monitoring line configured to transmit a feedback signal based on the plurality of gate clock signals via the plurality of gate driving circuits to the clock signal generator. The clock signal generator is to block generation of the plurality of gate clock signals in response to the feedback signal..
Samsung Display Co., Ltd.

Protection circuit and organic light emitting display device including the same

An organic light emitting display device includes a display panel, a pad part positioned at one side of the display panel and having a plurality of pads arranged to receive driving power and driving signals, a plurality of signal input lines arranged to transmit the driving power and the driving signal from the pad part to the display panel, and a protection circuit connected to one or more of the signal input lines, wherein the protection circuit includes a first protection transistor including a gate electrode, a first electrode, and a second electrode, wherein the signal input lines include a first clock signal input line, the first electrode is connected to the first clock signal input signal line, and the second electrode is connected to a first power source.. .
Samsung Display Co., Ltd.

Access control and code scheduling

A data processing system operates in a plurality of modes including a first privilege mode and a second privilege mode with the first privilege mode giving rights of access that are not available in the second privilege mode. Application code executes in the second privilege mode and generates function calls to hypervisor code which executes in the first privilege mode.
Arm Ip Limited

Excessive heating protection circuit and image forming apparatus

An excessive heating protection circuit to be connected to a first temperature sensor being configured to output less voltage with a rise in temperature and a second temperature sensor being configured to output more voltage with a rise in temperature. The excessive heating protection circuit includes: a multiplexer having a plurality of channels capable of receiving reference voltages predetermined for the first and second temperature sensors, the multiplexer being configured to output one of the reference voltages by selecting one of the channels with reference to input selection signals; a first comparator being configured to compare the output voltage of the first temperature sensor to the output reference voltage of the multiplexer and to output a comparison result; and a second comparator being configured to compare the output voltage of the second temperature sensor to the output reference voltage of the multiplexer and to output a comparison result..
Konica Minolta, Inc.

Active matrix substrate and display device including active matrix substrate

Provided is an active matrix substrate that can protected from static electricity, with the frame region being narrowed. An active matrix substrate (20a) includes a plurality of first lines (gl), a plurality of second lines (sl), and a protection part (50).
Sharp Kabushiki Kaisha

Contactless power transmission device and power transmission method thereof

A contactless power transmission device and a power transmission method are disclosed herein. When a rectifier filter circuit receives high-frequency ac output from receiving coil and after a full-bridge rectifying and filtering process, dc voltage signal is obtained.
Ningbo Weie Electronic Technology Co., Ltd

Protection circuit for output device

An electronic device is disclosed that includes an output device and a detection circuit. The output device is coupled to an output pad, and is turned on according to a protection signal.
Taiwan Semiconductor Manufacturing Co., Ltd.

Over voltage protection circuit

An overvoltage protection circuit is disclosed. The overvoltage protection circuit includes an input voltage port, an output voltage port, a low pass filter coupled to the input voltage port and a voltage regulator coupled to the low pass filter.
Nxp B.v.

Battery pack having fixing part for pcm

Disclosed herein is a battery pack configured to have a structure including a plate-shaped battery cell having electrode terminals formed at one side thereof including a sealed surplus part and a protection circuit module (pcm) mounted at the sealed surplus part, wherein each of the electrode terminals of the battery cell is made of a plate-shaped conductive member, the pcm includes a protection circuit board (pcb), a safety element electrically connected between one of the electrode terminals of the battery cell and the pcb or loaded on the pcb, an external input and output terminal electrically connected to a protection circuit of the pcb, and an electrically insulative module case in which the pcb and the safety element are mounted in a state in which the external input and output terminal extends outside, the module case includes a pcb receiving part open outward at one side thereof and at least one fixing part to mount the module case to the sealed surplus part of the battery cell, and the pcm is loaded on the sealed surplus part of the battery cell while being received in the module case in a state in which the pcm is electrically connected to the electrode terminals of the battery cell.. .
Lg Chem, Ltd.

Led lighting system

An led lamp arrangement (1) adapted for fitting in a luminaire. The luminaire is adapted for a fluorescent lamp and having a ballast.
Silicon Hill B.v.

Protection circuit of power amplification circuit and power amplification circuit using the same

A protection circuit of a power amplifier includes a first current mirror configured to supply a current mirrored to a first reference current as a bias current of a driver amplifier; and a current sink configured to adjust a bias current of the driver amplifier by sinking the first reference current according to a magnitude of a voltage output from the power amplifier.. .
Samsung Electro-mechanics Co., Ltd.

Battery short-circuit protection circuit

This invention involves a battery short-circuit protection circuit installed in a battery-load circuit. In the battery-load circuit, there is a battery and a load rl.
Hefei University Of Technology

Semiconductor esd protection circuit

A semiconductor device includes a zener diode having an anode layer and a cathode layer. The zener diode provides an electrostatic discharge (esd) path for esd signals.
Texas Instruments Incorporated

Dual e-shaped high frequency exciter

An exciter associated with a mass flow primary comprises a rigid plate comprising a base, two outer struts, and an inner strut; at least one electromagnet formed over the inner strut; a protection circuit associated with the electromagnet; and an exciter circuit configured to induce a current in said electromagnet in order to cause vibration of said exciter.. .
Honeywell International Inc.

Level shift circuit

The present invention provides a level-shift circuit that can suppress the malfunction caused by the noise due to the on/off of a level-shift transistor and the dv/dt noise due to external noise. The present invention provides a level-shift circuit for transmitting a signal from a primary potential side to a secondary potential side, comprising: a first serial circuit a first resistance including serially-connected to a first switching element; a second serial circuit including a second resistance serially-connected to a second switching element; a latch malfunction protection circuit for which the respective output terminals of the first and second serial circuits are connected to an input terminal; a latch circuit for receiving a signal outputted from the latch malfunction protection circuit; and a capacitor connected between drain terminals of the first resistance and the first switching element and between drain terminals of the second resistance and the second switching element..
Fuji Electric Co., Ltd.

Polymer battery cell and electronic device comprising same

Disclosed are a polymer battery cell capable of increasing cell capacity due to efficient use of space by efficiently placing a protection circuit device, and thus of effectively protecting the protection circuit device from an external environment, and an electronic device including the polymer battery cell. The polymer battery cell includes an electrode body including a positive plate, a negative plate, and a separator provided between the positive and negative plates, cell taps including a positive tap connected to and protruding from the positive plate, and a negative tap connected to and protruding from the negative plate, and a battery protection circuit module electrically connected to the cell taps.
Itm Semiconductor Co., Ltd.

Circuit device, lighting device, and vehicle using the same

In a circuit device, a plurality of protection circuits are disposed between a plurality of first power supply connecting terminals and a first input terminal of a load circuit. A switching element of each of the plurality of protection circuits is connected between a first power supply connecting terminal and a first input terminal, and is turned on when a dc power supply is connected with a normal polarity to the first power supply connecting terminal.
Panasonic Intellectual Property Management Co., Ltd.

Lighting system including a protection circuit, and corresponding protecting light sources from electrostatic discharges

Various embodiments may relate to a lighting system including a string of light sources connected in series between a first terminal and a second terminal, wherein at least one electrical contact of the string of light sources is accessible. The system further includes a protection circuit that protects the light sources from an electrostatic discharge applied to the electrical contact that is accessible.
Osram Gmbh

Overvoltage and overcurrent protection circuit and mobile terminal

The present disclosure provides an overvoltage and overcurrent protection circuit and a mobile terminal. The overvoltage and overcurrent protection circuit comprises a primary protection circuit and a secondary protection circuit.
Guang Dong Oppo Mobile Telecommunications Corp Ltd.

Silicon controlled rectifier

A silicon controlled rectifier, an electrostatic discharge (esd) protection circuit including the silicon controlled rectifier and an integrated circuit including the silicon controlled rectifier or esd protection circuit. The silicon controlled rectifier includes a first region having a first conductivity type and a second region having a second conductivity type located adjacent the first region in a semiconductor substrate.
Nxp B.v.

Method and circuit for protecting and verifying address data

A circuit is for protecting memory address data. The circuit may include an input data bus configured to receive write data to be written to a memory device, and an address bus configured to receive a corresponding write address.
Stmicroelectronics (rousset) Sas

Warming temperature control device

To provide a warming temperature control device which prevents overheating with high accuracy and stability to ensure safety and is excellent in economy, between both electrodes of a dc stabilization power supply which drives a temperature control section, a fixed resistor with which a capacitor is connected in parallel, a first diode disposed in a forward direction with respect to the power supply, and a temperature detection element wire are connected in series, and an inter-wire short circuit protection circuit is included. A degree of leak of a polymer layer is determined by detecting a difference between a maximum value and a minimum value of an input signal to the temperature control section on a time axis.
Hongkong Tachibana Electronics Co., Ltd.

Motor driving circuit with power reversal protection and fan device

A motor driving circuit with power reversal protection and a fan device are disclosed. The motor driving circuit has a supply end and a ground end.
Anpec Electronics Corporation

Power receiving unit, power receiving control method, wireless power transfer system, and electronic apparatus

A power receiving unit of the disclosure includes: a power receiving section that receives power transferred from a power transfer unit in a contactless manner; a protection circuit section that varies a receiving power voltage of the power received by the power receiving section; and a control section that controls an operational state of the protection circuit section to a plurality of statuses on the basis of a plurality of thresholds.. .
Sony Corporation