This page is updated frequently with new Feedback Signal-related patent applications.
|Control circuit of power converter and related method|
A control circuit includes: a comparing circuit, having a first input terminal and second input terminal, configured to operably generate a comparison signal according signals received by the first and second input terminals, wherein the first input terminal is utilized for coupling with a reference signal and the second input terminal is utilized for coupling with a feedback signal; a periodic signal generating circuit configured to operably generate a periodic signal and apply the periodic signal to the first input terminal or the second input terminal of the comparing circuit; and a control signal generating circuit for controlling an on time of a power switch according to the comparison signal. The periodic signal generating circuit clamps a limit of the periodic signal to a predetermined value, but does not configure the slope of the periodic signal to be zero when there is no current passing through the inductor..
Richtek Technology Corporation
|Stacked semiconductor apparatus being electrically connected through through-via and monitoring method|
A semiconductor apparatus includes a plurality of stacked chips. Each of the plurality of stacked chips includes a delay chain.
Sk Hynix Inc.
A multi-chip package (mcp) includes semiconductor chips integrated therein. Each semiconductor chip includes: pad groups which extend in a first: direction and are arranged in a second direction, and each of which includes a first metal line and a second metal line that are stacked in a third direction with an interlayer dielectric layer interposed therebetween; receivers which one-to-one correspond to the respective pad groups, and each of which includes a first input terminal coupled with the first metal line of a corresponding pad group, and an output terminal coupled with the second metal line of the corresponding pad group; and selectors, each of which selects one of a feedback signal transferred from the output terminal of a corresponding receiver and a reference voltage, and provides the selected one to a second input terminal of the corresponding receiver, in response to a chip select signal..
Sk Hynix Inc.
A voltage regulator may be provided that includes a first circuit to receive at least one feedback signal from a buck converter and to provide at least one driving signal to the buck converter to provide an output voltage based on the at least one feedback signal, and a second circuit to control a super-capacitor to provide the output voltage when the first circuit is not using the buck converter to provide the output voltage.. .
|Voltage regulator with dropout detector and bias current limiter and associated methods|
A voltage regulator includes an input terminal to receive an input voltage, an output terminal to supply an output voltage, a power transistor, a differential amplifier, a driver, a dropout detector and a bias current limiter. The differential amplifier provides a drive signal based on a difference between a voltage reference and a feedback signal corresponding to the output voltage.
Stmicroelectronics Design And Application S.r.o.
|Impedance conversion circuit of condenser microphone|
Provided is an impedance conversion circuit of a condenser microphone which includes a first electron tube operated in grounded-cathode mode to whose grid an output signal from a condenser microphone unit is inputted, and from whose plate a signal is outputted, a first emitter-follower circuit configured to receive a signal based on a plate output of the first electron tube and amplify a current, and a first feedback element configured to transmit a feedback signal from an emitter of a transistor configuring the first emitter-follower circuit to the grid of the first electron tube. And the impedance conversion circuit can achieve a wide dynamic range while using a voltage amplifier circuit with an electron tube at an initial stage.
Kabushiki Kaisha Audio-technica
|Apparatus and methods for tuning a voltage controlled oscillator|
Apparatus and methods for tuning a voltage controlled oscillator (vco) are provided. In one aspect, a method of auto-tuning in a phase-locked loop includes generating a vco clock signal using a vco coupled to a capacitor array, dividing the vco clock signal to generate a divided clock signal using a prescaler circuit having a selectable division ratio, controlling a value of the selectable division ratio using a first counter and a second counter of a counter module, generating a phase-frequency detector feedback signal based on a division control signal m and the divided clock signal using the counter module, counting a number of cycles of the divided clock signal that occur during a calibration interval using a cycle counter of a digital processing logic circuit, and determining the value of a capacitor array control signal based on the number of cycles counted during the calibration interval..
Skyworks Solutions, Inc.
|Communication device that transmits signals via a plurality of antennas and communication system|
A communication device includes: a converter circuit configured to convert an optical signal that carries an oscillator signal of a radio frequency and transmission signals generated in a signal processing device into an electric signal; an extractor configured to extract the oscillator signal from the electric signal; a recovery circuit configured to recover the transmission signals from the electric signal; a radio frequency signal generator configured to generate radio frequency signals that respectively carry the transmission signals recovered by the recovery circuit using the oscillator signal; amplifiers respectively configured to amplify the radio frequency signals; antennas respectively configured to output the amplified radio frequency signals; a feedback circuit configured to generate a feedback signal from the amplified radio frequency signals; and a transmitter configured to convert the feedback signal into an optical signal and transmit it to the signal processing device.. .
|Non-linear spread spectrum profile generator using linear combination|
A non-linear spread spectrum clock generator using a linear combination may include a phase locked loop configured to receive a reference signal and generate an output signal according to the reference signal and a feedback signal that compensates for the output signal. The phase locked loop may include a divider configured to generate the feedback signal by dividing the output signal by a divisional ratio.
Samsung Electronics Co., Ltd.
|Low power amplifier|
A phase-locked loop (pll) circuit, sense amplifier circuit, and method of operating a sense amplifier circuit are disclosed. The sense amplifier circuit comprises first and second operational amplifiers, each operational amplifier respectively comprising a non-inverting input terminal, an inverting input terminal, and an output stage comprising a current gating circuit having two current gating input terminals, the output stage coupled with an output terminal, the output terminal providing a feedback signal to the inverting input terminal.
International Business Machines Corporation
Emergency lighting system
An emergency lighting ballast (100) includes: a power translation circuit (120) which receives input power from an emergency power source (10) and supplies output power to a load (20); a voltage monitor (130) that monitors voltage across the load and produces a voltage feedback signal; a current monitor (130) that monitors current across the load and produces a current feedback signal; a temperature sensor (160); and a programmable control device (140) which controls the power translation circuit (120) in response to either of the voltage feedback signal and the current feedback signal to cause the output power supplied to the load to have a programmed power output profile. The programmable control device also activates a self-test emergency state in response to a manual or preprogrammed request for a self-test, only if there is no power to the load as indicated by the voltage feedback signal and/or the current feedback signal..
Philips Lighting Holding B.v.
Downhole linear solenoid actuator system
An example apparatus may include a solenoid actuator with a solenoid coil and a corresponding solenoid armature. A plurality of switches may be coupled to the solenoid coil.
Halliburton Energy Services, Inc.
Common circuit for goa test and eliminating power-off residual images
The invention discloses a common circuit for goa test and eliminating power-off residual images, including a first test end (3), a test signal line (at1) connected to the first test end (3), a second test end (5), a feedback signal line (at2) connected to the second test end (5), and the same number of test tfts (t0) as cascade goa unit circuits. By connecting the gate of each test tft (t0) to test signal line (at1), the source to feedback signal line (at2) and the drain to the output end of corresponding goa unit circuit and gate scan line, the invention can test the output signal of any stage goa unit circuit to determine the location of a malfunctioning goa unit circuit, and releasing the residual charges of the liquid crystal capacitor and storage capacitor at the display area of lcd panel when powering off to eliminate residual images..
Wuhan China Star Optoelectronics Technology Co., Ltd.
Compensation network for a regulator circuit
A linear regulator includes a drive circuit having an input and an output, with the output configured to drive a control terminal of a power transistor for the delivery of a load current. An error amplifier functions to amplify a difference between a reference signal and a feedback signal to generate an error signal at the input of the drive circuit.
Stmicroelectronics (china) Investment Co. Ltd
Device and controlling a fuel injection valve
The present disclosure generally relates to internal combustion engines. The teachings thereof may be embodied in methods for the measuring of a feedback signal generated by the movement dynamics of a fuel injector in operation.
Continental Automotive Gmbh
Feedback control of vehicle aerodynamics
A system is configured to control aerodynamics of a vehicle. The vehicle includes a body having a front end facing oncoming ambient airflow.
Gm Global Technology Operations Llc
Liquid discharge apparatus, head unit, capacitive load drive circuit, and integrated circuit device for capacitive load drive
A driving circuit for driving a capacitive load includes an integrated circuit device that includes a modulation portion which generates a modulation signal by pulse-modulating a source signal; a feedback circuit; a transistor that generates an amplified modulation signal which is obtained by amplifying the modulation signal; a low-pass filter that generates a drive signal by demodulating the amplified modulation signal; and a piezoelectric element that is displaced by applying the drive signal, wherein the feedback circuit generates a feedback signal on the basis of the drive signal, and feeds back the feedback signal to the modulation portion through a feedback terminal, the modulation portion includes a first circuit block and a second circuit block, and the integrated circuit device is configured to separate the first circuit block from the second circuit block by a triple-well structure.. .
Seiko Epson Corporation
Switch capacitor decision feedback equalizer with internal charge summation
In one embodiment, a receiver comprises a latch configured to receive a data signal and to latch symbols of the received data signal, and a decision feedback equalizer. The decision feedback equalizer comprises a first feedback capacitor having first and second terminals, the first terminal being coupled to a first internal node of the latch.
Class ab amplifier with bias control
An amplifier arrangement comprising first and second power amplifiers (t1, t2) having drains connected to positive and negative drive voltages, respectively, and gates connected to an input signal. The arrangement further comprises first and second current sensors (1, 2) for detecting first and second drain currents from the power amplifiers, processing circuitry (3) adapted to identify the smallest drain current, and a feedback control loop (5) and means for driving a bias current dependent on a feedback signal through a resistor connected between the input signal and the gate of an inactive one of the first and second power amplifiers.
Bang & Olufsen A/s
Converter circuit, corresponding apparatus and control method
A boost-type converter circuit includes a pair of converter switches that are alternatively switchable on and off. An inductor is coupled to the intermediate point between the converter switches.
Feed shaft control method and numerical control work device
Provided is a feed shaft control method, wherein a speed feedback loop having a speed controller is disposed within a position feedback loop having a position controller, forming a cascade coupling, and an acceleration feedback signal which is outputted from a compensator on the basis of an output signal of an acceleration detector is subtracted from a torque instruction. Furthermore, the method implements control wherein a speed is acquired on the basis of the output signal of the acceleration detector, and a signal obtained by multiplying the acquired speed by a gain is added to a speed instruction which is outputted from the position controller..
Makino Milling Machine Co., Ltd
Initial angle detection in stand still
An apparatus and method for determining initial rotor position in a stationary state of an electric machine. The apparatus and method for determining initial rotor position in a stationary state of an electric machine include: a power supply module being used for supplying power at least to a motor; a switch circuit being used for switching motor power supply modes, wherein each power supply mode corresponds to a different electrical angle; a feedback circuit detecting a motor winding current and generating a corresponding feedback signal to feed back to a controller; and the controller determining a rotor angle on the basis of currents passing through the motor in different power supply modes, wherein the controller performs the following operations: (a) weighting and then comparing fed-back current values of currents passing through the motor in different power supply modes; (b) based on a maximum current value and current values for two power supply modes before and after the power supply mode corresponding to the maximum current value, calculating a position angle pa corresponding to the position of the maximum current value by using a similar triangle approximation method..
Infineon Technologies Ag
Emergency lighting driver with programmable output power
An emergency lighting driver (100, 200, 400) includes: a power translation circuit (120, 220, 421/423/425) which receives input power from an emergency power source (10) and supplies output power to a load (20); and a programmable control device (140, 240) which controls the power translation circuit in response to a voltage feedback signal and a current feedback signal to cause the output power supplied to the load to have a programmed power output profile (302, 304), wherein the programmed power output profile is a function of time, temperature, the type of energy source employed for the emergency power source, the amount of remaining energy stored in the emergency power source, and/or the occupancy of an area in which the emergency lighting driver is located.. .
Philips Lighting Holding B.v.
Decision feedback equalizer
A decision feedback equalizer (dfe) includes first through sixth flip-flops, and first and second summer circuits. The first through fourth flip-flops sample an analog input signal received at the first and second summer circuits, detect the logic level of a data bit in the analog input signal and generate the first through fourth compensated signals.
Silab Tech Pvt. Ltd.
Short training time for mimo systems
Methods for wireless communication and system therefrom are provided. According to aspects, a method includes generating a plurality of training packets for transmission, and outputting each of the plurality of training packets for transmission to a device in a different one of a plurality of directions, wherein at least two of the plurality of training packets are output for transmission to the device in at least two of the plurality of directions using orthogonal transmission types.
Low-power conversion between analog and digital signals using adjustable feedback filter
A system to convert between analog and digital signals, in some embodiments, comprises: a differentiator to produce a differentiated signal based on an input signal and a feedback signal; an integrator, coupled to the differentiator, to integrate the differentiated signal; a quantizer, coupled to the integrator, to quantize the integrated signal; and a low-pass feedback filter, coupled between an output of the quantizer and an input of the differentiator, to generate said feedback signal using the quantized signal, wherein the low-pass feedback filter pushes at least some noise of the quantized signal downward in the frequency spectrum.. .
Semiconductor Components Industries, Llc
Remote supervisory control system
According to some embodiments, a remote supervisory control system includes an electric generator configured to operate based on a driving value applied from a server, and the server configured to apply a representative driving value for an driving of the electric generator to the electric generator, receive a driving feedback signal applied from the electric generator according to the representative driving value, determine whether or not the representative driving value is normal, and update the representative driving value with a second priority driving value according to the determination result.. .
Lsis Co., Ltd.
Helmet with turn signal indicators
A helmet with a turn signal display system, comprising one or more displays for illumination, a power source unit configured to provide power to the one or more displays, a control unit configured to control the one or more display. The helmet further comprises a luminous sensing unit, a tilt calculator unit, and an analyzer unit.
Harvester fan speed control based on yield
A harvester having a harvesting structure for harvesting crop and a crop receptacle for receiving harvested crop. The harvester comprises a crop conveying fan configured to operate at a fan speed to facilitate transfer of harvested crop from the harvesting structure to the crop receptacle.
Deere & Company
Constant on-time switching converter with reference voltage adjusting circuit and controller thereof
A cot switching converter includes a switching circuit having a main switch, an on-time control circuit configured to generate an on-time control signal, a comparing circuit, a logic circuit and a reference voltage adjusting circuit. The comparing circuit compares a reference voltage with a feedback signal indicative of output voltage of the switching circuit to generate a comparison signal.
Chengdu Monolithic Power Systems, Ltd.
Driving power generating circuit and a generating a driving power
A driving power generating circuit configured to generate a driving power to drive a load is provided. The driving power generating circuit includes a signal generating circuit, a power converter circuit, and a sampling control circuit.
Industrial Technology Research Institute
Quantizing circuits having improved sensing
A system including a processor and a memory device. The memory device includes a memory array having a plurality of memory elements connected to a bit-line and a quantizing circuit.
Micron Technology, Inc.
Mobile terminal and controlling the same
Disclosed are a mobile terminal having a hologram output unit and a method for controlling the same. The mobile terminal, comprises: a hologram output unit configured to output a hologram object to an output space outside the mobile terminal; an image sensor configured to sense a portion of a human body located within the output space of the hologram object; a feedback output unit configured to output a feedback signal; and a controller configured to: determine a relative position between the hologram object output by the hologram output unit and the portion of the human body sensed by the image sensor; detect, based on the relative position between the hologram object and the portion of the human body, that the portion of the human body approaches the hologram object, and control, based on the detection that the portion of the human body approaches the hologram object, the feedback output unit to transmit the feedback signal towards the portion of the human body that is detected to approach the hologram object..
Lg Electronics Inc.
Potentiostat/galvanostat with digital interface
A potentiostat/galvanostat employs a controller for providing digital control signals to a digital-to-analog converter (dac) that generates an analog output signal in response to digital control signals. A high current driver produces a high current output in response to the analog output signal from the dac.
Ashwin-ushas Corporation, Inc.
Athletic equipment with feedback device
An athletic equipment with feedback device includes a main body; and a feedback device installed on the main body. The feedback device has a control unit; an input module for entering a target waving value; a sensing module for sensing the waving status of the athletic equipment and producing a sense signal; a signal processing module converting the sense signal into an actual waving data which is subsequently sent to the control unit, such that the control unit compares the actual waving date with the target waving value and sends a feedback signal; and a feedback module receiving the feedback signal and producing a feedback reaction to inform the user..
Topteam Technology Taiwan Co., Ltd.
Doppler profile estimation using compressed beamforming information
Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a first wireless device, beamforming information from a station over a period of time, the beamforming information including a feedback signal-to-noise ratio (snr) value and compressed feedback matrix.
Multi-user multiple-input-multiple-output grouping metrics
Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a wireless device, beamforming information from a plurality of stations.
Method for synchronizing video and audio in virtual reality system
A method for audio-video synchronization in a virtual reality (vr) system is provided. The vr system includes a vr device and a host device.
Optical transmitter and adjusting signal levels
An amplitude encoded transmission system and method are disclosed that achieve an improved bit-error rate for systems with a non-linear input/output relationship in the presence of noise. A set of measures are determined for adjacent signal levels.
Avago Technologies General Ip (singapore) Pte. Ltd.
Using compressed beamforming information for optimizing multiple-input multiple-output operations
Methods, systems, and devices are described for wireless communication. In one aspect, a method of wireless communication includes receiving, by a first wireless device, compressed beamforming information from each of a plurality of stations, the compressed beamforming information including a feedback signal-to-noise ratio (snr) value and compressed feedback matrix.
Slope control circuit
A slope control circuit is connected between a replica circuit and a controller area network bus. The replica circuit generates an upper and a lower feedback signal.
Amazing Microelectronic Corp.
Self-feedback control circuit
A self-feedback control circuit is connected to a controller area network bus for controlling a high-level output and a low-level output, comprising a controller area network driving circuit and a replica circuit. The replica circuit is connected in parallel with the controller area network driving circuit and comprises an upper feedback path and a lower feedback path.
Amazing Microelectronic Corp.
A semiconductor circuit includes a first logic gate that receives inputs of a first input signal, a clock signal and a feedback signal and performs a first logical operation to output a first output signal. A second logic gate that receives inputs of the first output signal of the first logic gate, the clock signal, and an inverted output signal of the first input signal and performs a second logical operation to output the feedback signal..
Samsung Electronics Co., Ltd.
Voltage converter and voltage conversion method
Disclosed is a voltage converter and a method. The voltage converter includes: an input, an output, and a transformer including a primary winding and a secondary winding; a primary side circuit comprising at least one switch and coupled between the input and the primary winding; a secondary side control circuit coupled to the output.
Infineon Technologies Austria Ag
Control circuit and control switching power supply operating in quasi resonant mode
A control circuit can include: an output current sampling circuit configured to sample a current through a power switch of a switching power supply operating in a quasi-resonant mode, and to generate an output current feedback signal that represents an output current of the switching power supply; and a valley locking circuit configured to receive the output current feedback signal and a plurality of valley switching threshold voltages, where the valley locking circuit is switched to a corresponding valley from a valley currently being locked when the output current feedback signal is increased or reduced to one of the plurality of valley switching threshold voltages.. .
Silergy Semiconductor Technology (hangzhou) Ltd
Regulator circuit, method, and corresponding power supply system
A track regulator circuit includes an input terminal for receiving an input signal, an output stage with an output terminal for applying an output signal to a load, an error amplifier coupled to the input terminal, and a feedback resistor between the output terminal and the error amplifier for transferring to the error amplifier a feedback signal indicative of the output signal. The error amplifier is configured for driving the output stage as a function of the difference between the input signal and the output signal so that the output signal tracks the input signal.
Cancelling damping induced by drag in synthetic jets using performance enhancements
An active flow control drag-induced damping reduction apparatus. The apparatus includes a variable frequency signal power supply; a jet generator defining an internal cavity and having pump member, and coupled to the variable frequency signal power supply to receive a control signal; a feedback sensor coupled to the pump member to generate a feedback signal measuring the reciprocating motion of the pump member; a detection circuit that receives the feedback signal and measures a difference compared to the variable frequency generator; and an adjustment circuit that receives the measured difference and tunes the variable frequency signal of the variable frequency signal power supply to maintain the jet generator at an optimum flow..
The Boeing Company
Adaptive matching network
An apparatus for acquiring a desired response to an electromagnetic signal includes an adaptive network that receives a feedback signal and dynamically adjusts an electrical characteristic of the adaptive network in response to the feedback signal, the adaptive network electrically cooperating with an electrical component. A measurement device measures a parameter indicative of a combined response by the electrical component and the adaptive network to an impinging electromagnetic signal.
Keysight Technologies, Inc.
Apparatus and methods for programmable low dropout regulators for radio frequency electronics
Apparatus and methods for programmable low dropout (ldo) regulators for radio frequency (rf) electronics are provided herein. In certain configurations, an ldo regulator for generating a programmable output voltage includes a regulation field-effect transistor (fet) having a drain electrically connected to the ldo regulator's output, an error amplifier that controls a gate of the regulation fet, a feedback circuit that provides a feedback signal to an inverting input of the error amplifier, an output capacitor electrically connected to the ldo regulator's output, and an alternative discharge circuit.
Skyworks Solutions, Inc.
Incidental robot-human contact detection
Technologies are generally described for detection of incidental robot-human contact. In some examples, a robotic actuator movement may generate a feedback signal, such as a haptic signal, a proprioreceptive signal, an optical signal, and/or an infrared signal.
Empire Technology Development Llc
Wireless shared spectrum access contention based on harq feedback
A first wireless device determines the duration of a clear channel assessment interval based on feedback signals before transmitting data to a second wireless device. The first wireless device receives feedback signals, such as acknowledgement (ack) and negative acknowledgement (nak) signals, from one or more second wireless devices.
Cisco Technology, Inc.
Delta sigma modulator with dynamic error cancellation
The disclosure provides a delta sigma modulator that includes a first input port and a second input port. These ports receive a differential input signal.
Texas Instruments Incorporated
Successive approximation method with a nonlinear characteristic
A circuit comprises a successive approximation analog-to-digital converter that comprises a feedback path and is operated for example in accordance with the successive approximation method. The feedback path is configured to translate a digital signal in accordance with a prescribed function and to furthermore convert the translated digital signal into an analog feedback signal.
Lantiq Beteiligungs-gmbh & Co. Kg