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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
06/23/16
20160178442 
 Fully-differential amplification for pyrometry patent thumbnailnew patent 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 patent thumbnailAmplifier 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 patent thumbnailSemiconductor 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 patent thumbnailReference 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 patent thumbnailElectric 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 patent thumbnailSystems 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 patent thumbnailBalanced 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 patent thumbnailFluxgate 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 patent thumbnailSolid-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 patent thumbnailPhotoelectric 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


03/03/16
20160061967 

Gamma ray detector and detecting gamma rays


In various embodiments, a gamma ray detector is provided. The gamma ray detector may include a converter element, configured to release an electron when a gamma ray moves at least partially through the converter element.
Infineon Technologies Ag


02/18/16
20160049909 

Stacked bias i-v regulation


A rf amplifier circuit including a plurality of fet devices, where a source terminal of an fet device is electrically coupled to the drain terminal of another fet device. The circuit further includes a voltage divider network and a plurality of operational amplifiers, where a separate one of the operational amplifiers is provided for each fet device.
Northrop Grumman Systems Corporation


02/18/16
20160049908 

Radio-frequency amplifier circuit and control voltage setting radio-frequency amplifier circuit


A radio-frequency amplifier circuit includes first and second fets cascode-connected to each other. The gate of the first fet is connected to a radio-frequency input terminal, and the drain of the second fet is connected to a radio-frequency output terminal.
Murata Manufacturing Co., Ltd.


02/18/16
20160047877 

Optical differential solar tracking system


A system and method of using differential optical signals to track the orientation of a solar surface or surfaces is proposed. Two dispersive prisms or gratings arranged in a mirror-symmetric fashion are used to decompose light into its constituent colors, and the gain of a differential amplifier circuit based on the difference of the frequencies of single color collimated light produced by the two prisms or gratings is used to maintain the on-sun orientation of the solar surface or surfaces.
Qbotix, Inc.


02/04/16
20160036662 

Communication 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


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


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


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


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


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


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


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


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


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)




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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