Popular terms

Amplifier Circuit topics
Amplifier Circuit
Semiconductor
Differential Amplifier Circuit
Differential Amplifier
Memory Cells
Semiconductor Device
Memory Cell
Semiconductor Substrate
Photodiode
Signal Processing
Memory Effect
Electronic Device
Electrical Signal
Storage Device
Communications

Follow us on Twitter
twitter icon@FreshPatents

Web & Computing
Cloud Computing
Ecommerce
Search patents
Smartphone patents
Social Media patents
Video patents
Website patents
Web Server
Android patents
Copyright patents
Database patents
Programming patents
Wearable Computing
Webcam patents

Web Companies
Apple patents
Google patents
Adobe patents
Ebay patents
Oracle patents
Yahoo patents

[SEARCH]

Amplifier Circuit patents



      

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




Date/App# patent app List of recent Amplifier Circuit-related patents
02/04/16
20160036662 
 Communication visualization system patent thumbnailCommunication visualization system
A communication visualization system includes a wireless power-feeding device for transmitting electromagnetic energy in a wireless manner and a communication visualization device for notifying that a lan cable connected to an information communication apparatus is performing information communication. The communication visualization device includes an antenna part for receiving the electromagnetic energy transmitted from the wireless power-feeding device, a rectifier circuit for rectifying the electromagnetic energy received by the antenna part to generate a dc voltage, an amplifier circuit for amplifying a communication signal transferred to the communication cable at the time of information communication by using the dc voltage generated by the rectifier circuit as operation power, a rectifier circuit for converting the amplified communication signal into a dc voltage, and a light-emitting circuit for emitting light when the dc voltage after conversion is supplied..
Hitachi Metals, Ltd.


02/04/16
20160036574 
 Systems and methods for communicating into a shielded environment patent thumbnailSystems and methods for communicating into a shielded environment
A system and method for wirelessly communicating into a shielded area are described. In one particular example, a bi-directional amplifier that allows two-way communication into a tunnel is mounted at a tunnel portal and thereby allows rf signals to be exchanged therefrom using a single switched pathway.
Tunnel Radio Of America, Inc.


02/04/16
20160036398 
 Voltage mode power combiner for radio frequency linear power amplifier patent thumbnailVoltage mode power combiner for radio frequency linear power amplifier
A radio frequency (rf) power combining amplifier circuit has a circuit input and a circuit output. A first amplifier is connected to the circuit input and to a first bias input.
Rfaxis, Inc.


02/04/16
20160036397 
 Semiconductor amplifier circuit patent thumbnailSemiconductor amplifier circuit
According to one embodiment, a semiconductor amplifier circuit includes: a first amplifier circuit including first and second p-type transistors; a second amplifier circuit including first and second n-type transistors; and first to seventh current mirror circuits. The first and second current mirror circuits are connected to drains of the first and second p-type transistors.
Kabushiki Kaisha Toshiba


02/04/16
20160035402 
 Unit array of a memory device, memory device, and memory system including the same patent thumbnailUnit array of a memory device, memory device, and memory system including the same
A memory device includes a memory array including a plurality of sections, each including a plurality of memory cells and at least one reference cell. The memory device may also include a plurality of sense amplifier circuits respectively corresponding to the plurality of sections, and a plurality of switch circuits, each switch circuit connected between a respective section and sense amplifier circuit.

02/04/16
20160035211 
 Communication visualization device patent thumbnailCommunication visualization device
A communication visualization device includes a transformer for converting a magnetic field caused from a lan cable connected to an information communication apparatus into electric energy at time of information communication, an amplifier circuit for amplifying the electric energy output from the transformer, a rectifier circuit for converting an amplified signal amplified by the amplifier circuit into a dc voltage, and a light-emitting circuit for emitting light when the dc voltage obtained by conversion of the rectifier circuit is supplied thereto.. .
Hitachi Metals, Ltd.


01/28/16
20160028247 
 Supplying-end module for induction-type power supply system and signal analysis circuit therein patent thumbnailSupplying-end module for induction-type power supply system and signal analysis circuit therein
A signal analysis circuit for a supplying-end module includes a first voltage divider circuit, for attenuating a coil signal of a supplying-end coil; a first amplifier circuit, for obtaining parts of the attenuated coil signal higher than a reference voltage to output a half-wave signal; a first envelope detector, for performing envelope extraction on the half-wave signal to obtain a dc signal; a second voltage divider circuit, for attenuating the half-wave signal; a second amplifier circuit, for obtaining parts of the attenuated half-wave signal higher than the dc signal to output an amplified half-wave signal; a second envelope detector, for performing envelope extraction on the amplified half-wave signal to generate an envelope signal; a coupling capacitor, for filtering out the dc component of the envelope signal; a third voltage divider circuit, for combining the ac component of the envelope signal with a dc voltage to retrieve a trigger signal.. .
Fu Da Tong Technology Co., Ltd.


01/28/16
20160027827 
 Image sensor and driving method thereof patent thumbnailImage sensor and driving method thereof
With an image sensor in which the amplifier circuit is disposed at each pixel, there is such an issue that the threshold voltage of the transistor fluctuates so that the signal voltage fluctuates because a voltage is continuously applied between the source and the gate of the transistor at all times when using the amorphous thin film semiconductor as the transistor that constitutes an amplifier circuit. The gate-source potential of the tft that constitutes the amplifier circuit is controlled so that the gate terminal voltage becomes smaller than the source terminal voltage in an integrating period where the pixels accumulate the signals, and controlled so that the gate terminal voltage becomes larger than the source terminal voltage in a readout period where the pixels output the signals..
Nlt Technologies, Ltd.


01/14/16
20160014356 
 Solid-state imaging device and  driving solid-state imaging device patent thumbnailSolid-state imaging device and driving solid-state imaging device
A solid-state imaging device includes a plurality of pixels each of which has a photoelectric conversion element and a pixel output portion and which are arranged in a column direction, a first wiring connected to the pixel output portions of the plurality of pixels, a differential amplifier circuit whose one input terminal is connected to the first wiring, a second wiring connected to the other input terminal of the differential amplifier circuit, a third wiring which is formed so as to extend in the column direction and is connected to a first pad, a plurality of switches connected between the second and third wirings, and a control unit for driving the switch at a position corresponding to the position of the pixel in which the pixel output portion is driven in association with the driving of the pixel output portion.. .
Canon Kabushiki Kaisha


01/14/16
20160013763 
 Amplifier circuit, cmos inverter amplifier circuit, comparator circuit, delta-sigma analog-to-digital converter, and semiconductor device patent thumbnailAmplifier circuit, cmos inverter amplifier circuit, comparator circuit, delta-sigma analog-to-digital converter, and semiconductor device
An amplifier circuit includes a first mos transistor whose source is connected to a first power source and which amplifies a signal that is input to a gate and outputs the amplified signal from a drain, a second mos transistor whose source is connected to the first power source, and a back gate voltage control element that controls the voltage a back gate of the second mos transistor so that the voltage associated with the drain of the second mos transistor and the voltage of the gate of the second mos transistor are equal to each other, and which applies the controlled voltage to the back gate of the first mos transistor.. .
Semiconductor Technology Academic Research Center


01/14/16
20160013760 

Circuits and devices related to fast turn-on of radio-frequency amplifiers


Circuits, methods and devices are disclosed, related to fast turn-on of radio-frequency (rf) amplifiers. In some embodiments, an rf amplifier circuit includes an amplification path implemented to amplify an rf signal, where the amplification path includes a switch and an amplifier.
Skyworks Solutions, Inc.


01/14/16
20160013759 

Amplifier circuitry for envelope modulators, envelope modulators incorporating said amplifier circuitry and modulating a signal envelope


Amplifier circuitry for an envelope modulator comprising: a plurality of amplifiers for driving a load, each amplifier receiving an input representing an envelope of a signal to be amplified, and one or more charge storage devices coupled to one or more of said plurality of amplifiers. The plurality of amplifiers and charge storage device(s) receive a supply voltage v+ and the charge storage device(s) are charged to the supply voltage v+ initially.
Kabushiki Kaisha Toshiba


01/14/16
20160011254 

Compound sensor


The present invention provides a technology capable of suppressing a fault which has occurred in a certain detection element from affecting other detection units in which no fault has occurred in a compound sensor. The compound sensor includes: a plurality of detection units made up of c/v conversion circuits 321a and 321b, amplifier circuits 322a and 322b, adcs 323a and 323b, diagnosis voltage outputting dacs 327a and 327b, carrier signal generating dacs 328a and 328b and substrate voltage generating dacs 329a and 329b which are signal detection circuits provided for each of a plurality of detection elements; a power source voltage input unit 331 and a gnd voltage input unit 332 shared among each of the plurality of detection units; and overcurrent switch circuits 101a and 101b which are fault detection circuits provided for each of the plurality of detection units for detecting a fault of each detection element and stopping power supply to the detection unit in which the fault has occurred..
Hitachi Automotive Systems, Ltd.


01/07/16
20160006475 

Radio frequency tranceiver front-end device


In an rf transceiver front-end device that operates in a receiving mode, a first transformer circuit generates, based on an external rf signal received by an antenna, a first induction signal that passes through a switch unit, and that is amplified by a low noise amplifier circuit and then demodulated by a demodulation circuit to thereby generate a reception signal. When the rf transceiver front-end device is in a transmitting mode, a power amplifier circuit generates, based on a modulated signal generated by a modulation circuit through modulation of an external transmission signal, an amplified output.
National Taiwan University


01/07/16
20160006415 

Radio-frequency module


To provide a multiband-support radio-frequency module in which the occurrence of a harmonic signal in an amplifier circuit is suppressed and the output of a radio-frequency signal containing unwanted harmonic components is prevented. A first signal path sl1 and a second signal path sl2 are provided such that they intersect each other at least once in a multilayer substrate 2, as viewed from above.
Murata Manufacturing Co., Ltd.


01/07/16
20160006403 

Multistage amplifier circuit with improved settling time


Described examples include multistage amplifier circuits having first and second forward circuits, a comparator or sensor circuit coupled to sense a signal in the second forward circuit to identify nonlinear operation or slewing conditions in the multistage amplifier circuit, and one or more sample hold circuits operative according to a sensor circuit output signal to selectively maintain the amplitude of an amplifier input signal in the second forward circuit and/or in a feedback circuit in response to the sensor circuit output signal indicating nonlinear operation or slewing conditions in the multistage amplifier circuit. Certain examples further include a clamping circuit operative to selectively maintain a voltage at a terminal of a miller compensation capacitance responsive to the comparator output signal indicating nonlinear operation or slewing conditions..
Texas Instruments Incorporated


01/07/16
20160006400 

Distributed power amplifier circuit


A distributed power amplifier circuit is disclosed. The distributed power amplifier circuit comprises an amplifier arrangement comprising a plurality of sub amplifiers, each having an output port for outputting an output signal of the sub-amplifier and an output combiner network for combining the output signals from the sub amplifiers.
Telefonaktiebolaget L M Ericsson (publ)


12/31/15
20150381120 

Slew rate control boost circuits and methods


The present disclosure amplifier circuits and methods having boosted slew rates. In one embodiment, an amplifier circuit comprises an output stage comprising a first output transistor, the first output transistor comprising a gate, a source, and a drain, wherein the gate receives a signal to be amplified.
Qualcomm Incorporated


12/31/15
20150380074 

Semiconductor devices and semiconductor systems including the same


The semiconductor memory device includes a power control signal generator and a sense amplifier circuit. The power control signal generator generates a first power control signal that is enabled in response to a temperature latch signal generated in response to latching a temperature signal in a predetermined mode.
Sk Hynix Inc.


12/31/15
20150378378 

Power converter and regulating line transient response of the power converter


A power converter includes an input and an output with an energy storage circuit and a power switching circuit coupled between the input and the output. A feedback circuit generates a feedback voltage which is differentially compared to a reference in an error amplifier circuit to generate an error amplification signal.
Stmicroelectronics (shenzhen) R&d Co. Ltd


12/31/15
20150377983 

Magnetic sensor device


To provide a magnetic sensor device which maintains accuracy thereof while reducing current consumption by switching drive power of a hall element to two drive power. A magnetic sensor device is equipped with a driving circuit which supplies power to a sensor element, a switch changeover circuit which restricts the supply of the power from the driving circuit to the sensor element, a differential amplifier circuit which performs arithmetic processing on an output signal of the sensor element, a threshold voltage generating circuit which generates a threshold voltage used in magnetism determination, a comparison circuit which compares and determines a voltage of the differential amplifier circuit and the threshold voltage, and a logic circuit which according to the output of the comparison circuit, switches the power outputted from the driving circuit, switches the threshold voltage and controls on/off of the switch changeover circuit in a constant cycle..
Seiko Instruments Inc.


12/31/15
20150377941 

High frequency phase reference standard signal


A pre-characterised high frequency signal (14) is provided by means of a non-linear circuit, for example an amplifier circuit (10), fed with a first signal (12) with a component at a first, fundamental, frequency (fo). The amplifier circuit generates an output signal comprising harmonic components (14h1, 14h2, 14h3) having stable and predetermined phase relation relative to each other.
Focusmw Ip. Inc


12/24/15
20150371670 

Dual reader structure


Implementations described and claimed herein provide a stacked dual reader with a bottom sensor stack and a top sensor stack separated by a top mid-shield and a bottom mid-shield, and a pre-amplifier circuit comprising a top lead connected to the top mid-shield, configured to collect current flowing from the top mid-shield through the top sensor stack opposite a direction of current flowing from the bottom mid-shield to a bottom lead through the bottom sensor stack.. .
Seagate Technology Llc


12/17/15
20150364813 

Antenna having flexible feed structure with components


Electronic devices may include antenna structures. The antenna structures may form an antenna having first and second feeds at different locations.
Apple Inc.


12/17/15
20150362338 

Excitation signal generator for resolver


A resolver excitation signal generator includes a source configured to generate a sinusoidal input signal and an inverting amplifier circuit. The inverting amplifier circuit has an input connected to the source to receive the sinusoidal input signal and an output lacking a transistor stage.
Lear Corporation


12/10/15
20150358053 

Amplifier circuit, antenna module, and radio communication device


An amplifier circuit performs an amplification of a carrier signal received by a transmitting and receiving unit. The amplifier circuit includes an impedance matching circuit that performs matching of an impedance of the amplifier circuit when the transmitting and receiving unit and the amplifier circuit are connected.
Ricoh Company, Ltd.


12/10/15
20150358013 

Gate driving circuit


A temperature detection circuit for detecting a temperature of a switching element, a current source for causing a forward current to flow to the temperature detection circuit, an amplifier circuit for amplifying a forward voltage of the temperature detection circuit, a current adjustment circuit for adjusting a magnitude of a gate current to the switching element on the basis of an output voltage of the amplifier circuit, and a drive circuit for receiving an external signal and turning on/off the switching element, are included. The magnitude of the gate current caused to flow from the current adjustment circuit to the gate electrode of the switching element is adjusted on the basis of a change in a magnitude of the forward voltage corresponding to a change in the temperature of the temperature detection circuit..
Mitsubishi Electric Corporation


12/10/15
20150357983 

Fixed gain amplifier circuit


An instrumentation amplifier includes first and second resistors for gain setting. The operational amplifiers within the instrumentation amplifier include selectively enabled current drive sources coupled to the amplifier output.
Stmicroelectronics, Inc.


12/10/15
20150357980 

Signal processing circuit, resolver digital converter, and multipath nested mirror amplifier


A signal processing circuit includes a chopper amplifier that has a differential amplifier circuit that amplifies differential input signals vsp(t) and vsm(t), and an adder circuit that generates an addition signal vfil(t) by addition of the chopper output signal vsub(t) that the chopper amplifier generates. Differential signals inputted into the differential amplifier circuit are interchanged for every first phase period and second phase period, and the adder circuit generates the addition signal by addition of the chopper output signal in the first phase period and in the second phase period..
Renesas Electronics Corporation


12/10/15
20150357705 

Vehicle mounted antenna device


A vehicle mounted antenna device installed on a vehicle includes a circuit board, a main element portion, and an auxiliary element portion. The main element portion, which has a substantially planar shape, is disposed on substantially the same plane as the circuit board, functions also as a capacitive antenna designed for a first frequency band, and includes a bent pattern having an antenna capacity substantially equivalent to a solid pattern.
Harada Industry Co., Ltd.


12/10/15
20150356941 

Operational amplifying circuit and liquid crystal panel drive device using the same


An operational amplifier circuit includes: a first differential amplifier section containing a p-type differential pair of p-type transistors; a second differential amplifier section containing an n-type differential pair of n-type transistors; an intermediate stage connected with outputs of the first and second differential amplifier sections and containing a first current mirror circuit of p-type transistors, and a second current mirror circuit of n-type transistors; and an output stage configured to amplify an output of the intermediate stage in power. The first differential amplifier section includes a first current source and a first capacitance between sources of the p-type transistors of the p-type differential pair and a positive side power supply voltage.
Renesas Electronics Corporation


12/10/15
20150355744 

Semiconductor device


In a display portion of a liquid crystal display device, the dead space corresponding to a unit pixel is reduced while the aperture ratio of the unit pixel is increased. One amplifier circuit portion is shared by a plurality of unit pixels, so that the area of the amplifier circuit portion corresponding to the unit pixel is reduced and the aperture ratio of the unit pixel is increased.
Semiconductor Energy Laboratory Co., Ltd.


12/10/15
20150355294 

Magnetometers


The magnetometers possess a detector part with a magnetosensitive material sensitive to the magnetic field and coil surrounding its magnetosensitive material to pick-up the magnetic field, a pulse generator circuit supplies pulse current to the magnetic material, a sample holding circuit including with an electronic switch synchronized with pulse timing for switching on/off and holding capacitance to charge electricity produced by the pickup coil during the switch on period, and an amplifier circuit amplifies the holding capacitance voltage. Magnetometers possess a buffer circuit connecting the output side of the pickup coil with the input side of the buffer circuit and connects the output side of the buffer circuit with the input side of the electronic switch to transfer the pulse signal voltage induced in the pickup coil from the input side to the output side keeping the pulse signal voltage of the outside at the same level as the inside..
Magnedesign Corporation


12/03/15
20150351131 

Cross-connected cascode low noise amplifier for carrier aggregation


An apparatus includes a first amplifier circuit and a second amplifier circuit. The first amplifier circuit has a first output coupled to a first load circuit in a multi-output mode, and the second amplifier circuit has a second output coupled to a second load circuit in the multi-output mode.
Qualcomm Incorporated


12/03/15
20150349749 

Programmable transmit continuous-time filter


A programmable-current transmit continuous-time filter (tx-ctf) system can be included in a radio frequency (rf) transmitter. The input of the tx-ctf can receive a baseband transmission signal, and the output of the tx-ctf can be provided to an upconversion mixer for conversion to rf for transmission.
Skyworks Solutions, Inc.


12/03/15
20150349737 

Input current limited power supply and audio power amplifier for high power reproduction of nondeterministic signals


A method and apparatus for amplifying audio signals without exceeding an input current limit budgeted for the audio power amplifier circuit includes an intermediate energy storage between a battery and the audio power amplifier which provides an energy reserve to support amplifying peaks where the peaks have a peak power that is greater than the power that can be drawn from the battery due to the input current limit. Speech signals, which include substantial periodic content having short peaks relative to a pitch period, can be amplified without depleting the intermediate energy storage, allowing the intermediate energy storage to recover after a peak and before occurrence of a next peak.
Motorola Solutions, Inc


12/03/15
20150349736 

Feedback amplifier


Provided herein is a feedback amplifier including an amplifier circuit configured to amplify an input signal input from an input terminal and output the amplified input signal to an output terminal; a feedback circuit configured to apply a feedback resistance value to a signal output to the output terminal, and to control a gain of the amplifier circuit by adjusting the input signal by a bias voltage applied with a feedback resistance value determined; a packet signal sensor configured to generate a fixed resistance control signal for controlling a fixed resistance value included in the feedback resistance value through a comparison between the output from the output terminal with a minimum signal level; and a fixed resistance controller configured to control the fixed resistance value included in the feedback resistance value in response to the fixed resistance control signal.. .
Electronics And Telecommunications Research Institute


12/03/15
20150349731 

Hybrid power amplifier comprising heterojunction bipolar transistors (hbts) and complementary metal oxide semiconductor (cmos) devices


A heterojunction bipolar transistor (hbt) hybrid type rf (radio frequency) power amplifier includes a first device including an input terminal for receiving an rf signal, a pre-driver stage for amplifying the received rf signal, and an output terminal, the input terminal, the pre-driver stage and the output terminal being disposed in or over a first substrate; and a second device having a main stage having an hbt amplifier circuit disposed in or over a second substrate to further amplify the rf signal amplified by the pre-driver stage. The rf signal further amplified by the main stage is output through the output terminal of the first device..
Avago Technologies General Ip (singapore) Pte. Ltd.


12/03/15
20150349729 

Amplifier circuit, bi-stage amplifier circuit, multi-stage amplifier circuit, rf-amplifier circuit, receiver section, rf-transceiver, and integrated circuit


The present invention also relates to a bi-stage amplifier circuit, and to a multi-stage amplifier circuit comprising a cascade of a number of amplifier circuits complying to the present invention, the multi-stage amplifier circuit having a gain control logic prepared to control a gain of at least one of the amplifier circuits.. .

12/03/15
20150349728 

Current-voltage conversion amplifier circuit including multiplier and multi input amplifier


Provided is a current-voltage conversion amplifier circuit including: a plurality of light receiving devices generating a current signal proportional to an amount of light by receiving the light; multipliers amplifying the current signal, converting the amplified current signal into a first voltage signal, outputting the amplified current signal, or outputting the converted first voltage signal; multi input amplifiers outputting first and second output voltage pairs through a process for receiving output values of multipliers and an offset voltage and amplifying the received output values and offset voltage; a multiplexing unit selecting and outputting one first and second output voltage pair among the first and second output voltage pairs outputted from multi input amplifiers; and a signal conversion unit converting a difference value between first and second output voltages outputted from the multiplexing unit and outputting the converted digital signal.. .
Electronics And Telecommunication Research Institute


12/03/15
20150349723 

Hybrid power amplifier having electrical and thermal conduction path


A heterojunction bipolar transistor (hbt) hybrid type rf (radio frequency) power amplifier includes a first device including an input terminal for receiving an rf signal, a pre-driver stage for amplifying the received rf signal, and an output terminal, the input terminal, the pre-driver stage and the output terminal being disposed in or over a first substrate; and a second device having a main stage having an hbt amplifier circuit disposed in or over a second substrate to further amplify the rf signal amplified by the pre-driver stage. The rf signal further amplified by the main stage is output through the output terminal of the first device..
Avago Technologies General Ip (singapore) Pte. Ltd .


12/03/15
20150349719 

Doherty power amplifier apparatus


Disclosed is a doherty power amplifier apparatus, including: a drive amplifier circuit, a power splitter circuit and a power combiner circuit, wherein the power splittercircuit is connected to the drive amplifier circuit, the apparatus further comprising: a carrier amplifier circuit and a peak amplifier circuit connected in parallel between the power splitter circuit and the power combiner circuit, wherein the carrier amplifier circuit comprises one or more parallel carrier amplification branches, wherein each carrier amplification branch comprises a multi-stage carrier amplifier apparatus, the multi-stage carrier amplifier apparatus is used for achieving multi-stage carrier amplification; and the peak amplifier circuit comprises one or more parallel peak amplification branches, wherein each peak amplification branch comprises a multi-stage peak amplifier apparatus, the multi-stage peak amplifier apparatus is used for achieving multi-stage peak amplification.. .
Zte Corporation


12/03/15
20150349717 

Amplifier circuit with improved accuracy


An amplifier circuit with improved accuracy is provided that comprises a cascade of amplifier stages, a control line for controlling the amplifier stages, a feedback circuit having an input port for receiving a reference signal, and a feedback loop connecting the feedback circuit to the control line. Via the feedback circuit and the feedback loop, the large signal behavior of the amplifier stage is accurately fixed.
Qualcomm Technologies, Inc.


12/03/15
20150348621 

Nonvolatile semiconductor memory device and read method thereof


This nonvolatile semiconductor memory device comprises a memory cell array configured having a plurality of nand cell units arranged therein, each of the nand cell units being configured having a plurality of memory cells connected in series therein. A bit line is connected to one end of the nand cell unit, and a source line is connected to the other end of the nand cell unit.
Kabushiki Kaisha Toshiba


12/03/15
20150348611 

Semiconductor devices and semiconductor systems including the same


A semiconductor memory device may include a power control signal generator and a sense amplifier circuit. The power control signal generator may generate a first power control signal, the first power control signal having an enablement period that may be controlled in response to a temperature signal having a cycle time.
Sk Hynix Inc.


12/03/15
20150348602 

Sense amplifier circuit


A sense amplifier circuit includes a first transistor, a second transistor, a third transistor, a fourth transistor, a first resistive device, a second resistive device, a fifth transistor and a sixth transistor. A gate of the first transistor is coupled to a drain of the fourth transistor.
Taiwan Semiconductor Manufacturing Company, Ltd.


11/26/15
20150341064 

A receiver circuit


A receiver circuit comprising first and second antennas; an input amplification stage comprising first and second input amplifier circuits for amplifying first and second signals received at the first and second antennas respectively; a switching stage comprising first and second transconductance components connected respectively to the first and second input amplifier circuits and to a common output, and a switching mechanism arranged to selectively turn on and off the first and second transconductance components so that only one of the first and second transconductance components is in an on state at any time, the first and second transconductance components further amplifying the first and second signals respectively when in an on state; and an output amplification stage connected to the common output of the switching stage and comprising an output amplifier circuit for further amplifying the first and second signals when they are outputted via the common output.. .
The University Of Melbourne


11/26/15
20150340993 

Circuitry


Trans-impedance amplifier circuitry having an amplifier; a feedback resistor arranged between an output of the amplifier and an input of the amplifier; and at least one further resistor arranged physically parallel to the feedback resistor.. .
Hilight Semiconductor Limited


11/26/15
20150338432 

Inertia sensor


An inertia sensor includes a sensor element including first and second sensing parts configured to output first and second sensing signals, an amplifier having an input port to which the first sensing signal or the second sensing signal is selectively input, a feedback circuit unit configured to be connected between the input port and the output port of the amplifier to be connected in parallel to the amplifier, a first switching element provided between the first sensing part and the amplifier, a second switching element provided between the first sensing part and the feedback circuit unit, a third switching element provided between the second sensing part and the amplifier, and a fourth switching element provided between the second sensing part and the feedback circuit unit. This inertia sensor, stabilizes output characteristics of the amplifier circuit, and suppresses generation of unwanted signals..
Panasonic Intellectual Property Management Co., Ltd.


11/19/15
20150333708 

Class-d amplifier


In a class-d amplifier, oscillation phenomenon is suppressed in a high rf range and surge voltage is reduced. An oscillation absorption circuit is connected on the power supply side of the class-d amplifier circuit, and the class-d amplifier circuit and thus connected oscillation absorption circuit equivalently configure an oscillation circuit.
Kyosan Electric Mfg. Co., Ltd.


11/19/15
20150333706 

Radio frequency power amplifier circuit


An rf power amplifier circuit has an input terminal for receiving an input signal having an input power, and an output terminal for outputting an output signal. The rf power amplifier circuit comprises three amplifier stages and an input power splitter for providing respective power fraction signals to respective inputs of each amplifier stage.
Freescale Semiconductor, Inc.


11/19/15
20150333534 

Low power nanoelectronics


Disclosed are low power electronic devices configured to exploit the sub-threshold swing, unidirectional tunneling, and low-voltage operation of steep slope-tunnel tunnel field-effect transistors (tfet) to improve power-conversion efficiency and power-efficiency of electrical systems incorporating the tfet as an electrical component to perform energy harvesting, signal processing, and related operations. The devices include a htfet-based rectifier having various topologies, a htfet-based dc-dc charge pump converter, a htfet-based amplifier having an amplifier circuit including a telescopic operational transconductance amplifier, and a htfet-based sar a/d converter having a htfet-based transmission gate dff.
The Penn State Research Foundation


11/19/15
20150332741 

Sense amplifier circuit and semiconductor memory device


To improve reading accuracy of a sense amplifier circuit and a semiconductor memory device. A sense amplifier circuit includes an n type fet which is a sensing transistor connected between a power supply and a ground via a data line that extends to a memory cell, a resistance element that is connected between a gate of the sensing transistor and the power supply, and a capacitance element that is connected between the gate of the sensing transistor and the ground..
Renesas Electronics Corporation


11/12/15
20150326106 

Soft start circuit for switching converter and associated soft start method


A soft start circuit for a switching converter, the soft start circuit has an internal soft start voltage generating circuit, an amplifier circuit and a buffer circuit, the internal soft start voltage generating circuit provides an internal soft start voltage, the amplifier circuit has a first input terminal receiving the internal soft start voltage, a second input terminal receiving a soft start reference signal and an output terminal, the buffer circuit has an input terminal coupled to the output terminal of the amplifier circuit and an output terminal providing the soft start reference signal. An external soft start capacitor coupled to the output terminal of the amplifier circuit is charged to provide an external soft start voltage, and the soft start reference signal is provided based on the internal soft start voltage and the external soft start voltage..
Chengdu Monolithic Power Systems Co., Ltd.


11/12/15
20150323964 

Rf power amplifier with linearity control


A linear amplifier circuit includes a multi-stage power amplifier that can amplify an input signal to produce an output signal, and a gain feedback control circuit coupled with the output and the input of the multi-stage power amplifier. An adjacent-channel leakage feedback control circuit can detect the output signal at the output of the multi-stage power amplifier and reduce adjacent-channel leakage in the output signal over an output power range based on the detected output signal..
Micro Mobio Corporation


11/12/15
20150323944 

Current modulation circuit


A modulated digital input signal is passed through a conditioning circuit to generate a first input signal. An error amplifier circuit receives the first input signal and a second input signal, and controls the operation of a mos transistor to generate an output signal that is current modulated.
Stmicroelectronics S.r.l.


11/12/15
20150323569 

High frequency voltage supply monitor


Various aspects provide a high frequency voltage supply monitor capable of monitoring high frequency variations of the voltage supply inside a microelectronic circuit substantially in real time. The voltage supply monitor can comprise a differential amplifier circuit having a substantially constant gain over a wide bandwidth, allowing the supply voltage variations to be amplified according to a known gain under a wide range of conditions.
Applied Micro Circuits Corporation


11/05/15
20150318850 

Switching element drive circuit, power module, and automobile


A switching element drive circuit of the present invention outputs a voltage to the switching element by use of a voltage output unit configured as an amplifier circuit having a voltage amplification factor of 1 to drive the switching element. When the switching element is turned on, a turn-on voltage having a value higher than a threshold voltage of the switching element and lower than a value of a voltage of a power supply of the switching element drive circuit is provided to the voltage output unit.
Mitsubishi Electric Corporation


11/05/15
20150318829 

Low noise amplifier for mems capacitive transducers


This application relates to amplifier circuitry for amplifying a signal from a mems transducer. A super source follower circuit (40) is provided which includes a feedback path from its output node (nout) to a control bias node (bc) in order to provide a preamplifier signal gain that may be greater than unity.
Cirrus Logic International Semiconductor Ltd.


11/05/15
20150318828 

A quasi-broadband amplifier according to the doherty principle


An amplifier comprises a first amplifier circuit, a second amplifier circuit, a hybrid-coupler circuit and a termination. The hybrid-coupler circuit comprises an output port and an isolation port.
Rohde & Schwarz Gmbh & Co. Kg


11/05/15
20150317009 

Position detecting device


The invention allows size reduction of a sensor of a position detecting device of a capacitive system, which detects a position indicated by an indicator. The sensor has plural electrode conductors that are disposed adjacent to each other and are configured to receive a signal from the indicator on a first surface of a substrate having the first surface and a second surface opposed to each other.
Wacom Co., Ltd.


11/05/15
20150316732 

Opto-electrical transceiver module and active optical cable


An opto-electrical transceiver module and an active optical cable comprising such a module are disclosed. The module includes a first printed circuit board and a second printed circuit board.

11/05/15
20150316622 

Magnetism detection device


An apparatus for detecting magnetism includes a self-exciting fluxgate type magnetic oscillation sensor in each of three axes perpendicular to one another, the magnetic oscillation sensor includin a magnetism sensor including a core-coil including a core made of a magnetic material and a coil wound around the core, and an operational amplifier circuit causing an ac excitation current to run through the coil to generate an output in accordance with a strength of an external magnetic field applied to the core. An air core coil not wound around a core is arranged in the vicinity of and in parallel with the core-coil of each of the magnetic oscillation sensors arranged in each of the axes..
Hano Manufacturing Co., Ltd.


10/29/15
20150311871 

Receiver circuit


A receiver circuit includes a first amplifier circuit to differentially amplify differential input signals by a linear operation, a second amplifier circuit configured to differentially amplify output differential signals of the first amplifier circuit by a limiting operation, a feedback circuit, first and second resistors coupled between the feedback circuit and outputs of the first amplifier circuit, and third and fourth resistors coupled between the feedback circuit and outputs of the second amplifier circuit. The feedback circuit amplifies a positive-phase signal that is output from a positive-phase output node thereof coupled to the first and third resistors, and a negative-phase signal that is output from a negative-phase output node thereof coupled to the second and fourth resistors, and feeds back a feedback signal after amplification to the first amplifier circuit..
Fujitsu Limited


10/29/15
20150311869 

Amplifier circuit and operation method thereof


Disclosed is an amplifier circuit capable of achieving high efficiency at back off power while maintaining high output power when an amplifier of a driving stage is saturated in a multistage amplifier in which a plurality of amplifiers are connected in series to each other. In the amplifier circuit, at least two amplifiers including a first amplifier and a second amplifier, the first amplifier preceding the second the first amplifier, are connected in series to each other, the second amplifier changes input impedance according to output power from the first amplifier, and an impedance adjusting unit for adjusting output load impedance of the first amplifier is disposed between the first amplifier and the second amplifier, wherein the impedance adjusting unit optimizes the output load impedance of the first amplifier according to a change of input impedance of the second amplifier..
Samsung Electronics, Co., Ltd.


10/29/15
20150311867 

High-frequency amplifier circuit


A high-frequency amplifier circuit (10) includes a high-frequency amplifying element (11), a bias circuit (12), and a bias adjusting circuit (13). The high-frequency amplifying element (11) includes an input end and an output end.
Murata Manufacturing Co., Ltd.


10/29/15
20150311778 

Flyback power converter and control circuit and control method thereof


The present invention provides a flyback power converter and a control circuit and a control method thereof. The flyback power converter includes: a power stage circuit, a voltage sense circuit, a current sense circuit, and a control circuit.
Richtek Technology Corporation


10/29/15
20150310822 

Differential amplifier circuit and display drive circuit


A differential amplifier circuit and display drive circuit having the same are disclosed herein. In one example, a differential amplifier circuit includes a differential pair transistor configure to receive a differential input signal.
Synaptics Display Devices Kk


10/22/15
20150303877 

Semiconductor device


A semiconductor device comprises a first input terminal; a second input terminal; an inverting amplifier circuit that comprises an input node connected to a first input terminal, an inverting input node connected to a second input terminal, and an output node connected to an output terminal, amplifies a difference between a first input signal supplied to the input node and a second input signal supplied to the second input terminal, and that outputs an output signal whose polarity is inverted from that of the first input signal to the output node; and a non-inverting amplifier circuit that comprises an input node connected to a second input terminal, an inverting input node connected to a first input terminal, and an output node connected to an output terminal, amplifies a difference between the first input signal and the second input signal, and that outputs an output signal whose polarity is the same as that of the first input signal to the output node.. .
Ps4 Luxco S.a.r.l.


10/15/15
20150295549 

High-frequency amplifier circuit


A high-frequency amplifier circuit (10) includes a high-frequency amplifier (101) and a bias circuit (20). The bias circuit (20) includes bias control elements (102, 103).

10/15/15
20150295548 

Apparatus and methods for power amplifiers


Apparatus and methods for power amplifiers are disclosed. In one embodiment, a power amplifier circuit assembly includes a power amplifier and an impedance matching network.

10/15/15
20150295544 

Amplifier circuit with overshoot suppression


An amplifier circuit with an overshoot suppress scheme is provided. The amplifier circuit includes an input amplifier, an output amplifier and a diode device.

10/15/15
20150295539 

Power amplifier circuit for communication systems


A power amplifier includes an input for receiving an rf signal to be amplified; at least one power amplification circuit module in electrical connection with the input for amplifying the rf signal; at least one biasing circuit in electrical connection with the power amplification circuit for compensating the distortion of the rf signal so as to amplify the rf signal substantially linearly, and an output arranged to output the amplified rf signal.. .

10/15/15
20150295537 

Doherty power amplifier circuit


A doherty power amplifier circuit is provided, which includes a power divider circuit, and a power amplifier circuit connected with the power divider circuit; this doherty power amplifier circuit further includes a combination output circuit connected with the power amplifier circuit, wherein the combination output circuit is a rheostat filter coupler, or a rheostat filter, or a rheostat coupler. By adopting the circuit, the size of a power amplifier circuit can be reduced, the cost of the power amplifier circuit can be lowered, and the efficiency of a power amplifier can be improved..

10/15/15
20150294693 

Semiconductor device and electronic device


Provided is a semiconductor device which can achieve a reduction in its area, reduction in power consumption, and operation at a high speed. A semiconductor device 10 has a structure in which a circuit 31 including a memory circuit and a circuit 32 including an amplifier circuit are stacked.

10/08/15
20150288338 

Power amplifier circuit capable of adjusting gaiin dynamically


The invention provides a power amplifier circuit capable of adjusting gain dynamically. The power amplifier circuit comprises a power supply unit configured to provide a power supply signal; an input power detection unit for receiving at least one input signal and the power supply signal, detecting the power of the input signal to generate a detection signal, and pulling up or down a bias signal by the detection signal; a power amplifier unit for receiving the input signal and the bias signal, adjusting the gain by the controlling of the bias signal, and amplifying the input signal by the adjusted gain to output at least one output signal.

10/01/15
20150281836 

Transducer amplification circuit


A transducer amplification circuit may include a preamplifier circuit with a signal input receiving a transducer signal to provide an amplified transducer signal comprising audible frequency components and ultrasonic frequency components. The transducer amplification circuit may include a first sigma-delta modulator configured to sample and quantize the amplified transducer signal to generate a first digital transducer signal comprising a first quantization noise signal.
Analog Devices Technology


10/01/15
20150280664 

Operational amplifier circuit and enhancing driving capacity thereof


An operational amplifier circuit configured to drive a load is provided. The operational amplifier circuit includes an output stage module.
Novatek Microelectronics Corp.


10/01/15
20150280663 

Semiconductor circuit and amplifier circuit


An amplifier circuit outputs a control signal for controlling a control target circuit and receives input of a feedback signal from the control target circuit. The amplifier circuit and the control target circuit constitute a feedback loop that includes a plurality of poles.
Megachips Corporation


10/01/15
20150280661 

Single-input multiple-output amplifiers with simultaneous multiple gain modes


A device includes at least one first amplifier circuit configurable to receive and amplify an input radio frequency (rf) signal having a first carrier at a first input signal level and provide a first amplified rf signal, and at least one second amplifier circuit configurable to receive and amplify the input rf signal having a second carrier at a second input signal level and provide a second amplified rf signal, the at least one first amplifier circuit having a first input impedance, the at least one second amplifier circuit having a second input impedance.. .
Qualcomm Incorporated


10/01/15
20150280660 

Multi-stage switched-capacitor dc blocking circuit for audio frontend


An integrated dc blocking amplifier circuit, including: an operational amplifier configured in a differential amplifier; and at least first and second two-stage switched-capacitor circuits, each two stage switched-capacitor circuit including a first-stage circuit and a second-stage circuit, wherein the first two-stage switched capacitor circuit is connected to a positive feedback path of the operational amplifier and the second two-stage switched capacitor circuit is connected to a negative feedback path of the operational amplifier, wherein the first-stage circuit is switched at a relatively low switching frequency, while the second-stage circuit is switched at a relatively high switching frequency.. .
Qualcomm Incorporated


10/01/15
20150280658 

Buffer amplifier circuit


Amplifier circuits implemented with a buffer amplifier with a voltage gain substantially equal to one. In one example, a continuous-time amplifier is implemented by applying the input source across the input and the output terminals of the buffer amplifier.

10/01/15
20150280651 

Spurious signal mitigation for carrier aggregation amplifier


A device includes an amplifier circuit comprising a plurality of amplification paths, and at least one switchable bypass capacitance coupled to an associated shared power distribution network, the at least one switchable bypass capacitance and at least one of the plurality of amplification paths responsive to a control signal configured to selectively ground the at least one switchable bypass capacitance and selectively enable the at least one of the amplification paths based on a selected operating mode.. .
Qualcomm Incorporated


10/01/15
20150280544 

Emulated peak current limit scheme for switching regulator


An apparatus comprises a switching circuit, an error amplifier circuit, a current threshold circuit, and an over-current detection circuit. The switching circuit provides a switching duty cycle that includes a charge portion and a discharge portion.

10/01/15
20150280451 

Wireless power supply apparatus


In a wireless power supply apparatus, a first unit electrically connected to a power supply and a second unit electrically connected to an electric load. Power transmission is performed wirelessly between the first and second units using a magnetic resonance phenomenon.
Nippon Soken, Inc.


10/01/15
20150279448 

Reference circuit to compensate for pvt variations in single-ended amplifiers


The disclosure relates to semiconductor memory devices and related methods. A semiconductor memory device comprises: a single-ended sense amplifier circuit for reading data sensed from selected memory cells in a memory array, the sense amplifier having a first node used to feed in a reference signal, a second node coupled to a bit line, and sense transistors responsible for amplifying the content of a selected memory cell during a sense operation, a reference circuit having replica transistors of the sense transistors and further comprising a regulation network designed so that each replica transistor operates in a stable operating point, and wherein the regulation network generates a control voltage that is applied to the sense amplifier circuit..
Soitec


10/01/15
20150277458 

Voltage regulator


To provide a voltage regulator capable of maintaining the accuracy of an output voltage even if it is set to an arbitrary output voltage. A voltage regulator includes an output transistor comprised of an nmos transistor having a backgate grounded, an error amplifier circuit configured to amplify and output a difference between a divided voltage obtained by dividing an output voltage outputted from the output transistor and a reference voltage and thereby to control a gate of the output transistor, a constant voltage circuit, and a transistor having a gate inputted with a voltage of the constant voltage circuit, a drain connected to the gate of the output transistor, and a source connected to a source of the output transistor..
Seiko Instruments Inc.


09/24/15
20150269978 

Method and low-level input sense amplification


A sense amplifier is disclosed that includes an amplifier circuit configured to receive, at an input, an input signal including an input level, the amplifier circuit configured to provide an amplified output signal including a gain with respect to the input level; and a feedback circuit coupled to receive the amplified output signal from the amplifier circuit, the feedback circuit configured to provide, at the input of the amplifier circuit, an adjusted version of the amplified output signal including a modified output magnitude based on common mode feedback.. .
Qualcomm Incorporated


09/17/15
20150263757 

Digital to analog converter discharge circuit and associated analog to digital converter circuits


A circuit includes an amplifier circuit that receives a residue voltage from an output capacitor connected to an output of a digital to analog converter (dac). The dac is employed in a pipeline stage of an analog to digital converter (adc).
Texas Instruments Incorporated


09/17/15
20150263677 

System and adaptive linearization of rf amplifiers


A variable-bias power amplifier is provided, comprising: a first variable voltage source generating first bias voltages based on bias control signals; a first amplifier circuit amplifying an output rf signal to generate a first amplified signal based on the first bias voltages; a second variable voltage source generating second bias voltages based on the bias control signals; a second amplifier circuit amplifying the output rf signal to generate a second amplified signal based on the second bias voltages; and a dc isolation circuit between the first amplifier circuit and the second amplifier circuit, electrically isolating dc currents at the first amplifier from dc currents at the second amplifier, wherein the first variable voltage source can be controlled independently from the second variable voltage source, and the first amplifier circuit, the second amplifier circuit, and the dc isolation circuit are all formed on a single die.. .
Freescale Semiconductor, Inc.


09/17/15
20150263261 

Acoustic sensor and ultrasound probe


Disclosed is an acoustic sensor including a semiconductor chip comprising two or more transistors. At least two of the transistors are each connected to a piezoelectric thin film, and the piezoelectric thin film is directly or indirectly disposed over a semiconductor substrate such that a conduction state of each of the at least two transistors varies in response to a pressure of sound waves incident on the piezoelectric thin film, and the two or more transistors are connected to constitute a single amplifier circuit so as to add up and amplify a signal with a strength in response to the conduction state of each of the at least two transistors, and output the amplified signals..
Konica Minolta, Inc.


09/17/15
20150262642 

Semiconductor device


To provide a semiconductor device which includes a novel refresh circuit in a memory including an oxide semiconductor film. As circuits which operate in a refresh operation of the memory including the oxide semiconductor film, a sense amplifier circuit, a latch circuit, a first switch, and a second switch are provided.
Semiconductor Energy Laboratory Co., Ltd.


09/17/15
20150262592 

Systems and methods for distortion characterization


Systems, methods, devices and circuits for data amplification, and more particularly systems and methods for characterizing distortion introduced during data amplification. In some cases, an amplifier modeling circuit is discussed that receives a preamplifier status input from a preamplifier circuit; applies a vector fitting algorithm to the preamplifier status to yield a pole value; determines that the pole value is greater than unity; and replaces the pole value with an inverse of the pole value when the pole value is greater than unity..
Lsi Corporation


09/17/15
20150260813 

System and processing magnetic resonance signals


A magnetic resonance (mr) receiver is described herein. The mr receiver can be used to process nuclear magnetic resonance (nmr) signals.
Schlumberger Technology Corporation


09/17/15
20150260583 

Detection circuit, sensor device and electronic apparatus


A detection circuit includes a pyroelectric element, an amplifier circuit, a first switching element and a second switching element. The amplifier circuit includes a transistor in which a detection signal from the pyroelectric element is inputted to a gate.
Seiko Epson Corporation




Amplifier Circuit topics: Amplifier Circuit, Semiconductor, Differential Amplifier Circuit, Differential Amplifier, Memory Cells, Semiconductor Device, Memory Cell, Semiconductor Substrate, Photodiode, Signal Processing, Memory Effect, Electronic Device, Electrical Signal, Storage Device, Communications

Follow us on Twitter
twitter icon@FreshPatents

###

This listing is a sample listing of patent applications related to Amplifier Circuit for is only meant as a recent sample of applications filed, not a comprehensive history. There may be associated servicemarks and trademarks related to these patents. Please check with patent attorney if you need further assistance or plan to use for business purposes. This patent data is also published to the public by the USPTO and available for free on their website. Note that there may be alternative spellings for Amplifier Circuit with additional patents listed. Browse our RSS directory or Search for other possible listings.


1.7487

5430

1 - 1 - 101