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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
08/18/16
20160240231 
 Shared gate fed sense amplifier patent thumbnailShared gate fed sense amplifier
A first plurality of storage cells may be coupled to a first pair of data lines, and a second plurality of storage cells may be coupled to a second pair of data lines. Each storage cell in the first plurality of storage cells may be configured to generate a first output signal on the first pair of data lines in response to an assertion of a respective one of first plurality of selection signals, and each storage cell in the second plurality of storage cells may be configured to generate a second output signal on the second pair of data lines in response to the assertion of a respective one of a second plurality of selection signals.
Apple Inc.


08/18/16
20160240156 
 Amplifier circuit applied to display apparatus patent thumbnailAmplifier circuit applied to display apparatus
An amplifier circuit applied to a source driver of a display apparatus includes a first input terminal, a second input terminal, an operational amplifier, an output stage and an output terminal. The first input terminal receives a first input signal.
Raydium Semiconductor Corporation


08/18/16
20160240155 
 Amplifier circuit applied in source driver of liquid crystal display patent thumbnailAmplifier circuit applied in source driver of liquid crystal display
An amplifier circuit applied in a source driver of a liquid crystal display includes a differential input stage, a first output stage, a second output stage, and a detection module. The differential input stage receives a positive input voltage and a negative input voltage.
Raydium Semiconductor Corporation


08/18/16
20160238673 
 High sensitive micro sized magnetometer patent thumbnailHigh sensitive micro sized magnetometer
The magnetometers possess detector part with a magnetic wire sensitive to magnetic field consisting of a domain structure of the surface domain with circular spin alignment and core domain with longitudinal spin alignment and micro coil surrounding its magnetic wire to pick up the change of longitudinal magnetizing caused by spin rotation in surface domain with circular spin alignment called as gsr effect excited by pulse with frequency of 0.5 ghz to 4 ghz. Peak coil voltage is detected by a circuit characterized with pulse generator, gsr element, buffer circuit, sample holding circuit, amplifier circuit and means to invert it to external magnetic field.
Magnedesign Corporation


08/11/16
20160233855 
 Pulse width modulation patent thumbnailPulse width modulation
A device includes a combining circuitry that receives an incoming signal, and one or more delayed signals from a delay circuitry. The combining circuitry combines the incoming signal and the one or more delayed signals to generate a combined signal.
Marvell World Trade Ltd.


08/11/16
20160231169 
 Infrared detecting switch for surveillance camera patent thumbnailInfrared detecting switch for surveillance camera
An infrared detecting switch for a surveillance camera includes a detector, an amplifier circuit, and a switch circuit. The detector can detect infrared radiation emitted by a person and output a voltage signal.
Hon Hai Precision Industry Co., Ltd.


07/28/16
20160218688 
 Preamplifier circuit for a microelectromechanical capacitive acoustic transducer patent thumbnailPreamplifier circuit for a microelectromechanical capacitive acoustic transducer
Described herein is a preamplifier circuit for a capacitive acoustic transducer provided with a mems detection structure that generates a capacitive variation as a function of an acoustic signal to be detected, starting from a capacitance at rest; the preamplifier circuit is provided with an amplification stage that generates a differential output signal correlated to the capacitive variation. In particular, the amplification stage is an input stage of the preamplifier circuit and has a fully differential amplifier having a first differential input (inp) directly connected to the mems detection structure and a second differential input (inn) connected to a reference capacitive element, which has a value of capacitance equal to the capacitance at rest of the mems detection structure and fixed with respect to the acoustic signal to be detected; the fully differential amplifier amplifies the capacitive variation and generates the differential output signal..
Stmicroelectronics S.r.l.


07/28/16
20160218687 
 Amplifier circuit and detection apparatus including the same patent thumbnailAmplifier circuit and detection apparatus including the same
An amplifier circuit converts a charge signal into a voltage signal. The charge signal indicates a detection result outputted from a piezoelectric device that detects a detection object as a change in an amount of a charge.
Murata Manufacturing Co., Ltd.


07/28/16
20160218686 
 Single stage switching power amplifier with bidirectional energy flow patent thumbnailSingle stage switching power amplifier with bidirectional energy flow
A switching amplifier realizes bidirectional energy flow and combines switching and power amplification into one single stage so as to increase system efficiency. The modulator circuit of the amplifier receives and modulates an input signal, and generates and outputs modulated driver signals, which are used by the power driver circuit to generate signals to drive switching transformers of an amplifier circuit of the amplifier, and control signals, which are used to control an output generator circuit so as to allow individual inductors across the load by enabling current flowing through the load to have a path to ground.
Guangdong Redx Electrical Technology Limited


07/28/16
20160218682 
 Systems and methods related to linear load modulated power amplifiers patent thumbnailSystems and methods related to linear load modulated power amplifiers
Systems and methods related to linear load modulated power amplifiers. A power amplifier (pa) system can include an input circuit configured to receive a radio-frequency (rf) signal and split the rf signal into a first portion and a second portion.
Skyworks Solutions, Inc.


07/28/16
20160218681 

Amplifier circuit and method


First and second amplifiers are respectively coupled to first and second lines, each having first and second portions. An auxiliary amplifier has an output coupled to an auxiliary line network which comprises: a first auxiliary line coupled between an auxiliary junction and a first intersection between the first and second portions of the first line; a second auxiliary line coupled between the auxiliary junction and a second intersection between the first and second portions of the second line; and a third auxiliary line for coupling the output of the auxiliary amplifier to the auxiliary junction.
Telefonaktiebolaget L M Ericsson (publ)


07/28/16
20160218680 

Amplifier circuit and method


A first amplifier is coupled to an output node via a first line having first and second portions. A second amplifier is coupled to the output node via a second line having first and second portions.
Telefonaktiebolaget L M Ericsson (publ)


07/28/16
20160216238 

Device and monitoring an object in an explosion-protected zone by means of ultrasound


The present invention relates to a device and related method that includes an ultrasonic transducer, an acoustic waveguide acoustically coupled to the ultrasonic transducer and transmitting and receiving electronics for transmitting and receiving ultrasound waves via the ultrasonic transducer in an explosion-protected housing. The transmitting and receiving electronics has an energy storage connected to an amplifier circuit, wherein control signals for the ultrasonic transducer transmitted from outside can be amplified to such an extent that ultrasonic signals significantly strong for monitoring can be generated.
Fraunhofer-gesellschaft Zur FÖrderung Der Angewandten Forschung E.v.


07/21/16
20160211816 

Amplifier circuit and methods of operation thereof


A signal amplifying circuit and associated methods and apparatuses, the circuit comprising: a signal path extending from an input terminal to an output terminal, a gain controller arranged to control the gain applied along the signal path in response to a control signal; an output stage within the signal path for generating the output signal, the output stage having a gain that is substantially independent of its supply voltage, and a variable voltage power supply comprising a charge pump for providing positive and negative output voltages, the charge pump comprising a network of switches that is operable in a number of different states and a controller for operating the switches in a sequence of the states so as to generate positive and negative output voltages together spanning a voltage approximately equal to the input voltage.. .
Cirrus Logic International Semiconductor Ltd.


07/21/16
20160211810 

Amplifying stage working point determination


An amplifier circuit including an amplifying stage and a predistortion stage is disclosed. The amplifier circuit outputs an output signal xo.
Deltanode Solutions Ab


07/07/16
20160197581 

Digitally controlled oscillator device and high frequency signal processing device


The present invention provides a digitally controlled oscillator device capable of realizing a reduction in dnl. The digitally controlled oscillator device includes, for example, an amplifier circuit block, coil elements and a plurality of unitary capacitor units coupled in parallel between oscillation output nodes.
Renesas Electronics Corporation


07/07/16
20160195584 

Semiconductor device


A coulomb counter is provided. In the coulomb counter, a current generated on charge or discharge of a secondary battery is converted into a voltage by a resistor, and the voltage is amplified by an amplifier circuit.
Semiconductor Energy Laboratory Co., Ltd.


06/30/16
20160191000 

Protection device


A protection device 30 includes a detection circuit 32 that detects an abnormal current value of a current amplifier circuit 14 and outputs a first abnormality detection signal. The protection device 30 outputs a second abnormality detection signal continuously for predetermined time that starts from output timing of the first abnormality detection signal, turns down an input voltage value to the current amplifier circuit 14 at receiving timing of the second abnormality detection signal, and outputs a cutting command signal to a relay device 36 at the same timing.

06/30/16
20160190998 

Amplifier circuit


A differential signal is input to a pair of gates of a differential pair, a differential signal generated by a load circuit connected to drains of the differential pair is amplified by a differential amplifier stage, and the amplified differential signal is fed back to a pair of sources of the differential pair via a feedback circuit. It is possible to maintain a high input impedance in the pair of gates of the differential pair while not being influenced by a gain of negative feedback of an amplifier circuit, and it is possible to perform amplification in an input stage by using a pair of a first transistor and a second transistor of the differential pair.

06/30/16
20160190331 

Semiconductor device and display device having semiconductor device


Luminance variation due to change of current through a light-emitting element caused by change in environmental temperature is suppressed. Current through a first light-emitting element in a pixel portion is controlled by a monitor circuit.

06/30/16
20160189756 

Semiconductor storage device and sense amplifier circuit


A cross-coupled circuit provided between first and second bit lines that form a bit line pair includes first to fourth fin transistors of p-channel type. The first transistor has its source connected to a first power supply and its gate connected to the second bit line.

06/30/16
20160188924 

Wireless communication apparatus and mobile device


A wireless communication apparatus includes an amplifier circuit configured to amplify a signal output by a wireless communication unit that executes wireless communication, to output the signal having amplified to a transceiver unit; and a decision unit configured to decide, based on an operational mode of the wireless communication unit, whether to transmit the signal from the transceiver unit via the amplifier circuit, or transmit the signal from the transceiver unit without going via the amplifier circuit.. .

06/30/16
20160188104 

Position detecting device


A position detecting device enables input at multiple points by multiple fingers without being susceptible to noise. A transmission signal generating circuit outputs a signal to a predetermined electrode among electrodes arranged in a first direction of a position detecting sensor.

06/30/16
20160188074 

Goa circuit applied to liquid crystal display device


A goa (gate on array) circuit applied to a liquid crystal display device is disclosed. The liquid crystal display device has a plurality of scan lines.

06/23/16
20160178442 

Fully-differential amplification for pyrometry


This disclosure describes systems, methods, and apparatus for improving the signal-to-noise ratio, increasing sampling speed, and increasing the dynamic range of a pyrometer via improvements to the amplification section. In particular, single-stage non-differentiated amplifiers can be replaced with a differential amplifier circuit that increases gain without a proportional increase in noise.

06/16/16
20160173035 

Amplifier circuit, radio frequency receiver and mobile telecommunications device


An amplifier circuit, comprises a first amplifier stage contributing to a power of an amplified signal and a second amplifier stage contributing to the power of the amplified signal. The first amplifier stage and the second amplifier stage share a transistor..
Intel Ip Corporation


06/09/16
20160165688 

Semiconductor device and power supply device


A power supply topology is used in which a transistor is provided on the side of an output node of a rectifying circuit. An inductor is provided on the side of a reference node, a resistor is inserted between the transistor and the inductor, and one end of the resistor is coupled to a ground power supply voltage of a pfc circuit.
Renesas Electronics Corporation


06/09/16
20160164522 

Reference buffer circuits including a non-linear feedback factor


In an embodiment, an apparatus may include an amplifier circuit including a first input to receive a signal, a second input to receive a feedback signal, and an output. The apparatus may further include a buffer circuit including an input coupled to the output of the amplifier and including an output coupled to an output node.
Silicon Laboratories Inc.


06/09/16
20160164477 

Electric amplifier circuit for amplifying an output signal of a microphone


An electric amplifier circuit for amplifying an output signal of a microphone comprises a supply input terminal (v10) to apply a supply potential (vdda) for operating the electric amplifier circuit and a differential amplifier (110) having a first input terminal (e110a) for applying the output signal of the microphone (20), a second input terminal (e110b) and an output terminal (a110) for outputting an amplified output signal (out) of the microphone (20). A feedback path (fp) is provided between the output terminal (a110) of the differential amplifier (110) and the second input terminal (e110b) of the differential amplifier (110).
Ams Ag


06/09/16
20160164474 

Systems and methods related to linear and efficient broadband power amplifiers


Systems and methods related to linear and efficient broadband power amplifiers. A power amplifier (pa) system can include an input circuit configured to receive a radio-frequency (rf) signal and split the rf signal into a first portion and a second portion.
Skyworks Solutions, Inc.


06/09/16
20160164472 

Balanced doherty power amplifier circuit and radio transmitter


A balanced doherty power amplifier circuit and a radio transmitter is provided. The circuit includes a first peak amplifier, where an input end of the first peak amplifier is connected to a first input end of the circuit, and a first mean amplifier, where an input end of the first mean amplifier is connected to a second input end of the circuit, and an output end of the first mean amplifier is connected to an input end of a first matching unit.
Hauwei Technologies Co., Ltd.


06/09/16
20160161571 

Fluxgate magnetic sensor readout apparatus


Compact, low power fluxgate magnetic sensor readout circuits and apparatus are presented in which demodulator or rectifier circuit to modulates a sense signal from the fluxgate sense coil, and the demodulated signal is provided to an amplifier circuit with a transconductance or other amplifier and one or more feedback capacitors connected between the amplifier input and amplifier output to integrate the amplifier output current and provide a voltage output signal indicating the magnetic field sensed by the fluxgate sensor.. .
Texas Instruments Deutschland Gmbh


06/02/16
20160156868 

Solid-state imaging apparatus and imaging system


A solid-state imaging apparatus includes a pixel section in which a plurality of pixels are arranged in a matrix, a column signal line configured to output a pixel signal from the pixel section, a column amplifier circuit configured to invert and amplify the pixel signal, a bypass circuit configured to bypass the column amplifier circuit, an ad converter, and a control unit configured to change an operation mode of the ad converter in accordance with the operation of the bypass circuit.. .
Canon Kabushiki Kaisha


06/02/16
20160156859 

Photoelectric conversion apparatus, focus detection apparatus, and image capturing system


A photoelectric conversion apparatus includes a photoelectric conversion unit, a signal line, a circuit block, and a control circuit. The circuit block includes a differential amplifier circuit including a feedback path, a first switch that controls conduction between an output terminal and the signal line, a second switch that controls conduction between an inverting input terminal and the signal line, and a third switch that controls conduction between the inverting input terminal and the output terminal.
Canon Kabushiki Kaisha


06/02/16
20160156321 

Impedance converter circuit for condenser microphone


To provide an impedance converter circuit for a condenser microphone which can secure a wide dynamic range using a voltage amplifier circuit. The impedance converter circuit is provided with: a first electron tube of a cathode grounded type in which an output signal of a condenser microphone unit is input into a grid and output from a plate; a second electron tube in which an output signal from the plate of the first electron tube is input into a grid and output from at least a cathode; and a feedback element configured to transmit a feedback signal from the cathode of the second electron tube to the grid of the first electron tube..
Kabushiki Kaisha Audio-technica


06/02/16
20160156320 

Method and apparatus of an input resistance of a passive mixer to broaden the input matching bandwidth of a common source/gate lna


A cascode amplifier circuit comprises a first spiral inductor coupled to a source of a first transistor; a second spiral inductor coupled to a drain of a second transistor; a third inductor connecting the first transistor to the second transistor; a first capacitor coupled in parallel to the third inductor forming a bandpass filter; and a second capacitor coupled in parallel to the second spiral inductor forming a resonant circuit, wherein the resonant circuit oscillates at a center frequency.. .
Tensorcom, Inc.


06/02/16
20160153931 

Molecular receptor-based chemical field-effect transistor (chemfet) devices, systems, and methods for in-situ nitrate monitoring in field soils


Embodiments include a method for securing a membrane material to a gate of a molecular receptor-based chemical field-effect transistor (chemfet). The method can include casting a membrane material onto an exposed region of the gate, curing the membrane material, placing the chemfet into a mold, inserting a single application of impervious electrically insulative resin into the mold, and securing edges of the membrane material by the single application of the impervious electrically insulative resin, thereby physically preventing lifting off of the membrane material from the gate.
Suprasensor Technologies, Llc


05/26/16
20160150174 

Image sensor pixels having built-in variable gain feedback amplifier circuitry


An image sensor may include an array of image sensor pixels. Each pixel may have a photodiode, a floating diffusion node, and charge transfer gate.
Semiconductor Components Industries, Llc


05/26/16
20160149541 

Amplifier circuit and method


An amplifier arrangement comprises n amplifier stages, wherein n is an integer equal or greater than four. The amplifier arrangement comprises a cascade of quarter wavelength transmission lines coupled between an output of an amplifier of a first amplifier stage and an output node of the amplifier arrangement, wherein the cascade comprises n−1 quarter wavelength transmission lines.
Telefonaktiebolaget L M Ericsson (publ)


05/26/16
20160148578 

Display apparatus and driving method thereof


A detection/correction output circuit of a data-line driving circuit is provided with a transimpedance circuit including an operational amplifier and a current-detection transistor to detect a driving current that has passed through a driving transistor in a pixel circuit. The output voltage of the operational amplifier is amplified by using resistance elements connected in series.
Sharp Kabushiki Kaisha


05/19/16
20160142027 

Amplifier and related method


An amplifier applicable to an intra-band non-contiguous carrier aggregation (ncca) band includes a first amplifier circuit and a second amplifier circuit. The ncca band includes at least a primary component carrier (pcc) channel and a secondary component carrier (scc) channel not adjacent to each other.
Mediatek Inc.


05/19/16
20160142021 

Amplifier circuit and method


An amplifier arrangement comprises n amplifier stages (101 to 10n), wherein n is an integer equal or greater than four. The amplifier arrangement comprises a cascade of quarter wavelength transmission lines coupled between an output of an amplifier of a first amplifier stage (101) and an output node (15) of the amplifier arrangement, wherein the cascade comprises n-1 quarter wavelength transmission lines (111 to 11n-1).
Telefonaktiebolaget L M Ericsson (publ)


05/19/16
20160142014 

Bias circuit for use with amplifier circuit, control method thereof, and signal amplifier


A bias circuit comprises: a first circuit that comprises a first resistor and a decoupling capacitor; a bias voltage generation circuit that comprises a first transistor being connected to the first circuit; one or more switches; a first replica circuit comprising a second circuit and a second transistor, the second circuit comprising a second resistor and a capacitor, the second transistor being connected to the second circuit; a second replica circuit comprising a third transistor; a comparator that makes a comparison between a pseudo-bias voltage and a reference voltage; and a control circuit that controls the one or more switches on the basis of the comparison result to reduce the amount of the current flowing through the first transistor.. .
Panasonic Intellectual Property Management Co., Ltd.


05/12/16
20160134824 

Solid-state imaging device, imaging device, and signal reading method


This solid-state imaging device includes a first substrate and a second substrate which have circuit elements constituting pixels disposed therein are electrically connected to each other. The pixels includes: a photoelectric conversion element disposed in the first substrate; an amplifier circuit that amplifies a signal generated in the photoelectric conversion element to output the amplified signal; a signal accumulation circuit which is disposed in the second substrate and accumulates the amplified signal which is output from the amplifier circuit; and an output circuit that outputs the amplified signal accumulated in the signal accumulation circuit from the pixel..
Olympus Corporation


05/12/16
20160134243 

Bias-boosting circuit with dual current mirrors for rf power amplifier


An rf power amplifier circuit has a signal input and a signal output. An input matching network connected to the signal input, and an output matching network is connected to the signal output.
Morfis Semiconductor, Inc.


05/12/16
20160133110 

Cable signal detector


A cable signal detector for being provided at a connector at an end of a communication cable transmitting differential signals or at a relay connector to be connected to the connector to detect an existence of information communication. The cable signal detector includes an amplifier circuit that branches and extracts a portion of a signal transmitted through the communication cable, amplifies the extracted signal and outputs the amplified signal, and a display portion that display the existence of information communication based on the output of the amplifier circuit.
Hitachi Metals, Ltd.


05/12/16
20160132341 

Wake up system for electronic device


A wake up system for electronic device includes a detecting circuit, an amplifier circuit, a switch circuit, and a south bridge chip. The detecting circuit detects an ambient temperature change as a result of the physical proximity of a user, converts the temperature change to a weak voltage signal, and amplifies the voltage signal for the first time.
Hon Hai Precision Industry Co., Ltd.


05/05/16
20160126902 

Amplifier circuit and method


An amplifier circuit comprises a first amplifier configured to amplify a first input signal. The output of the first amplifier is coupled to an output node via a first transmission line, the first transmission line comprising a first portion having a first characteristic impedance and a first length, and a second portion having a second characteristic impedance and a second length.
Telefonaktiebolaget L M Ericsson (publ)


04/28/16
20160118942 

Predistortion in radio frequency transmitter


A power amplifier circuit includes an amplifier mosfet and a predistorter mosfet. The predistorter mosfet source and drain are connected together, and the predistorter mosfet is connected between the gate of the amplifier mosfet and a second bias voltage signal.
Skyworks Solutions, Inc.


04/28/16
20160118423 

Semiconductor device and manufacturing the same


A solid-state image sensing element including a transistor with stable electrical characteristics (e.g., significantly low off-state current) is provided. Two different element layers (an element layer including an oxide semiconductor layer and an element layer including a photodiode) are stacked over a semiconductor substrate provided with a driver circuit such as an amplifier circuit, so that the area occupied by a photodiode is secured.
Semiconductor Energy Laboratory Co., Ltd.


04/28/16
20160118107 

Methods of operating sense amplifier circuits


A method of maintaining a voltage level of a bit line of a sense amplifier circuit includes providing a power supply voltage at a power supply node, receiving the power supply voltage from the power supply node with an nmos transistor, and maintaining a voltage level of the bit line by supplying sufficient current with the nmos transistor to compensate a leakage current of the bit line. The method includes receiving the voltage level of the bit line with a noise threshold control circuit, inverting the voltage level with the noise threshold control circuit, and driving a sense amplifier output with the noise threshold control circuit..
Taiwan Semiconductor Manufacturing Company, Ltd.


04/21/16
20160112013 

T-shaped power amplifier cooling plate


Cooled electronic circuitry may include multiple and substantially parallel circuitry surfaces, each containing power amplifier circuitry, having a side edge, and includes material between at least a portion of the base plate and the side edge that provides a level of thermal conductivity of at least 167 w/m-k; and a cooling plate having a flat surface attached to each of the side edges of the circuitry surfaces in a thermally-conductive manner.. .

04/21/16
20160109608 

Buried service detection


Some embodiments of the invention relate to a mobile detection device embodied as a bucket of an earth moving machine for an evaluation of a distance value and/or proximity from the bucket to an occluded ac-current carrying structure according to the magnetic field emanated from the structures ac-current. There is at least one detection coil, comprising at least one winding of an electrically conductive material, which is connected to a first amplification stage, with an amplifier circuit embodied as a current sensing amplifier, which are both are sealed within a common enclosure that is located at the bucket.

04/14/16
20160104609 

Mass analyser and mass analysis


An electrostatic ion trap for mass analysis includes a first array of electrodes and a second array of electrodes, spaced from the first array of electrode. The first and second arrays of electrodes may be planar arrays formed by parallel strip electrodes or by concentric, circular or part-circular electrically conductive rings.

04/14/16
20160104521 

Semiconductor device, circuit board, and electronic device


A semiconductor device with low power consumption or a semiconductor device with a reduced area is provided. The semiconductor device includes a cell array including a first memory cell and a second memory cell; and a sense amplifier circuit including a first sense amplifier and a second sense amplifier.

04/14/16
20160101293 

Implantable cardio defibrillator (icd), subcutaneous implantable cardio defibrillator (sicd), and waveform energy control systems


Cardiac defibrillation or cardioversion waveform energy control systems employ transvenous icds or subcutaneous sicds for treating cardiac arrhythmias. The systems comprise differentially driven amplifier circuit operational modes to control the delivery of defibrillation or cardioversion electrical shocks, wherein the shock waveforms are constant current, constant voltage, or constant energy.

04/07/16
20160099721 

Analog-digital conversion controlling the same


An analog-digital conversion system includes an analog-digital converter; and a preamplifier circuit which is provided in the previous stage of the analog-digital converter and differentially amplifies an input analog signal. In the preamplifier circuit, an offset voltage and/or a noise occurs and/or is mixed.
Spansion Llc


04/07/16
20160099696 

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.


04/07/16
20160099694 

Wide range transimpedance amplifier


One aspect of this disclosure is a transimpedance amplifier circuit with multiple resistive feedback loops can be implemented with multiple kelvin sensing channels. A transimpedance amplifier and multiple kelvin sensing channels can be implemented on a single die having multiple contacts, such as pins, for connecting multiple resistors to the kelvin sensing channels.
Analog Devices, Inc.


04/07/16
20160099644 

Voltage regulator


Provided is a voltage regulator in which an output current can be controlled stably and accurately to an overcurrent protection set value without the need of providing a phase compensation circuit including an element having a large area. The voltage regulator includes a constant voltage control circuit including: a first differential amplifier circuit for comparing a first reference voltage and a feedback voltage to each other; and an output transistor to be controlled by an output voltage of the first differential amplifier circuit, and an overcurrent protective circuit including: a resistor for measuring the output current; a second differential amplifier circuit for measuring a difference between voltages at both terminals of the resistor; a comparator for comparing an output voltage of the second differential amplifier circuit and a second reference voltage to each other; and a switch to be controlled by a detection signal of the comparator.
Seiko Instruments Inc.


04/07/16
20160099276 

Image sensor with hybrid heterostructure


An image sensor architecture provides an snr in excess of 100 db, without requiring the use of a mechanical shutter. The circuit components for an active pixel sensor array are separated and arranged vertically in at least two different layers in a hybrid chip structure.

04/07/16
20160099037 

Memory device with differential bit cells


In some examples, a memory device may be configured to utilize differential bit cells formed from two or more tunnel junctions. In some cases, the tunnel junctions forming the differential bit cell may be arranged to utilize shared read circuitry to reduce device mismatch.
Everspin Technologies, Inc.


04/07/16
20160095528 

Circuit arrangement for suppressing common-mode interference signals during the measurement of bioelectric signals


A differential voltage measuring system includes two electrodes that are connected to a patient at an input and make available a respective measurement contact at an output. A shunt resistor is connected in series with the second electrode.

03/31/16
20160093723 

Insulated gate bipolar transistor amplifier circuit


The present invention provides a lateral igbt transistor comprising a bipolar transistor and an ig-fet. The lateral igbt comprises a low resistive connection between the drain of the igfet and the base of the bipolar transistor, and an isolating layer arranged between the ig-fet and the bipolar transistor.
K.eklund Innovation


03/31/16
20160093655 

Image sensor with hybrid heterostructure


An image sensor architecture provides an snr in excess of 100 db, without requiring the use of a mechanical shutter. The circuit components for an active pixel sensor array are separated and arranged vertically in at least two different layers in a hybrid chip structure.

03/31/16
20160093341 

Memory device with shared amplifier circuitry


In some examples, a memory device may have at least a first and a second memory array. In some cases, a portion of the bit cells of the first memory array may be coupled to first pmos-follower circuitry and to second pmos-follower circuitry.
Everspin Technologies, Inc.


03/31/16
20160091909 

Soft start circuit and dc-dc voltage regulator


A voltage regulator is provided comprising: a pass transistor that includes a first node coupled to receive an input voltage and a second node coupled to provide a regulated voltage and a control node; an amplifier circuit coupled to produce a control voltage on a control line that is coupled to control a voltage at the control node of the pass transistor, based at least in part upon a reference voltage and the regulated voltage; a switch configured to transition between a first switch state in which the switch couples the control line to a turn-off voltage having a value to turn off the pass transistor and a second switch state in which the switch decouples the control line from the turn-off voltage; and a switch control circuit configured to maintain the switch in the first switch state during a first time interval while the input voltage ramps up and to transition the switch to the second switch state after the first time interval.. .
Analog Devices, Inc.


03/24/16
20160086652 

Memory device with dynamically operated reference circuits


This invention concerns a semiconductor memory device comprising: at least one sense amplifier circuit for reading data sensed from selected memory cells in a memory array, at least one reference circuit, each reference circuit being a replica of the sense amplifier circuit and having an output through which the reference circuit delivers an output physical quantity, a regulation network providing a regulation signal to each sense amplifier circuit and each reference circuit, wherein the regulation signal is derived from an averaging of the output physical quantity over time and/or space, wherein the regulation network comprises a control unit configured to sum up the physical quantities of each output of the reference circuit and a target mean value, the control unit delivering a regulation signal based on the sum, the regulation signal being fed in to each regular sense amplifier circuit and to each reference circuit.. .
Soitec


03/24/16
20160081665 

Ultrasonic probe ultrasonic imaging apparatus and controlling ultrasonic imaging apparatus


An ultrasonic probe includes a transducer circuit configured to receive ultrasonic waves reflected from an object and output an ultrasonic signal based on the ultrasonic waves; a simulated circuit having circuit characteristics substantially the same as the transducer circuit and configured to output a noise signal; and a differential amplifier circuit configured to output a voltage difference between the ultrasonic signal and the noise signal.. .
Samsung Electronics Co., Ltd.


03/17/16
20160079940 

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.
Skyworks Solutions, Inc.


03/17/16
20160079046 

Multiple frequency rf amplifier, mass spectrometer including the same, and mass spectrometry mass spectrometer


Provided is a multiple frequency radio frequency (rf) amplifier. The multiple frequency rf amplifier includes a waveform generation circuit configured to generate an rf signal by amplitude and frequency-modulating a reference waveform signal, a drive amplifier circuit configured to drive-amplify the rf signal, and a power amplifier circuit configured to generate a multiple frequency rf voltage signal through a power amplification of the drive-amplified rf signal and output the multiple frequency rf voltage signal to an ion trap for a mass spectrometry..
Korea Basic Science Institute


03/10/16
20160072735 

Low voltage feedforward current assist ethernet line driver


Described examples include ethernet physical layer (phy) interface integrated circuits with transmit interface circuitry for transmitting data to an ethernet network through a magnetic interface, which includes a voltage mode first amplifier with an output that generates a first voltage signal from a supply voltage according to a data input signal. The transmit interface circuit also includes a feedforward second amplifier circuit with an output stage that operates in a first mode to generate a current signal from the supply voltage according to the first voltage signal and to provide the current signal to the first amplifier output to boost a peak voltage at the output above the supply voltage to facilitate support for higher peak signal voltage swings for 10base-t applications while using 2.5 volt or other low voltage supply levels..
Texas Instruments Incorporated


03/10/16
20160072646 

Apparatus comprising a differential amplifier circuit and an extraction circuit


An apparatus with two pairs of lines including a first and second channel further includes a phantom channel that is implemented to provide a third channel without physically installing lines. Based on a differential signal, a first common-mode signal level is generated at a first output of a differential amplifier circuit, and a second common-mode signal level on a second output, and the first common-mode signal level is applied to the lines of the first pair of lines and the second common-mode signal level to the lines of the second pair of lines.
Fraunhofer-gesellschaft Zur Foerderung Der Angewandten Forschung E.v.


03/10/16
20160072530 

Systems and methods for performing power amplifier bias calibration


Wireless communications circuitry in an electronic device may include power amplifier circuitry that is powered using a bias voltage supplied by adjustable power supply circuitry. The power supply circuitry may include envelope tracking circuitry that continuously adjusts the bias voltage.
Apple Inc.


03/10/16
20160072458 

Detecting device and electronic apparatus


A detecting device includes a pyroelectric element that generates charge by a pyroelectric effect in a first detection terminal and a second detection terminal, a chopper amplifier circuit that generates an amplified signal in response to the charge generated in the first detection terminal and the second detection terminal by chopping, and an initialization switch that controls electrical connection between the second detection terminal and a power source for generating an initialized voltage, and the initialization switch is turned on before a start of an amplification operation by the amplifier circuit and is off during the amplification operation.. .
Seiko Epson Corporation


03/10/16
20160071572 

Semiconductor integrated circuit device


An output signal characteristic of a differential amplifier circuit is improved. When an input data signal becomes ‘low’, current flowing through a first transistor will decrease and potential at a connection (a node) between a first resistor and a second resistor will increase.
Renesas Electronics Corporation


03/10/16
20160066806 

Impedance bootstrap circuit for an interface of a monitoring device


An interface for receiving electrical signals representative of a condition of a patient and for conveying representations of the electrical signals to a processing system. The interface includes at least one amplifier circuit configured to alter an amplitude of the electrical signal, a common-mode cancellation amplifier circuit coupled to the at least one amplifier circuit and configured to reduce common-mode signal noise in the electrical signals, and a bootstrap circuit coupled to the at least one amplifier circuit and configured to increase an effective input impedance at an input of the at least one amplifier circuit..
Stryker Corporation


03/03/16
20160065216 

Integrated circuit device with programmable analog subsystem


An integrated circuit (ic) device can include a plurality of analog blocks, including at least one fixed function analog circuit, and at least one reconfigurable analog circuit block selected from: a continuous time (ct) block comprising a plurality of reconfigurable amplifier circuits and a discrete time block comprising amplifiers with a reconfigurable switch network; an analog multiplexer (mux) configured to selectively connect any of a plurality of input/outputs (i/os) of the ic device to the analog blocks, the analog mux including at least one low noise signal path pair having a lower resistance than other signal paths of the analog mux; at least one analog routing block reconfigurable to provide signal paths between any of the analog blocks; a digital section comprising digital circuits; and a processor interface coupled to the analog blocks.. .
Cypress Semiconductor Corporation


03/03/16
20160065158 

Class d amplifier circuit


This application relates to class d amplifier circuits (200). A modulator (201) controls a class d output stage (202) based on a modulator input signal (dm) to generate an output signal (vout) which is representative of an input signal (din).
Cirrus Logic International Semiconductor Ltd.


03/03/16
20160065157 

Method and gain enhancement of differential amplifier


A differential amplifier circuit and method having a feed-in network coupling an input signal to an intermediate signal. An amplifier amplifies the intermediate signal by a gain factor to output an output signal to a load network.
Realtek Semiconductor Corp.


03/03/16
20160065149 

Low noise amplifier method and apparatus


A low noise amplifier circuit including: at least a first input and first output; at least a first stage of transistor amplification having a transistor input terminal; the circuit further comprising: an input driving circuit interconnecting the first input to the transistor input terminal, the input driving circuit including a parallel resonant circuit interconnected between the transistor input terminal and ground and a series resonant circuit interconnected between the input terminal and the transistor input terminal, the input driving circuit functioning as an input matching network for the circuit in conjunction with an input bias and decoupling network.. .
Commonwealth Scientific And Industrial Research Organisation


03/03/16
20160065143 

Circuit for reducing pop noise


The invention concerns an amplifier circuit comprising: an amplifier having a first input coupled to an input node of the amplifier circuit via a first resistor and an output coupled to a load via a coupling capacitor, the output being coupled to the first input via a second resistor; and a current ramp generator adapted to supply a current ramp to the first input of the amplifier during a power up phase or power down phase of the amplifier circuit to control the rate of charge or discharge of the coupling capacitor.. .

03/03/16
20160065135 

High-frequency amplifier circuit


A high-frequency amplifier circuit comprising a first and a second amplification units connected in cascade structure and so on. The first amplification unit includes an fet of a first conductivity type having a source terminal supplied with a first potential, and a first inductor connected to an intermediate potential line, and the second amplification unit includes an fet of a second conductivity type having a source terminal supplied with a second potential, and a second inductor connected to the intermediate potential line.
Lapis Semiconductor Co., Ltd.


03/03/16
20160065134 

Asymmetric h-bridge in a class d power amplifier


Disclosed is an amplifier circuit having an output stage that includes an h-bridge circuit. The h-bridge circuit includes sense resistors on one side of the circuit.
Qualcomm Incorporated




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

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