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Amplifier Circuit patents

      

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




 Amplifier circuit and  adaptive amplifier biasing patent thumbnailAmplifier circuit and adaptive amplifier biasing
Disclosed examples include amplifier circuits with a first stage to amplify an input voltage signal according to a first stage gain to provide a first stage output voltage signal, and a second stage to provide an amplifier output voltage signal. A bias circuit provides an amplifier bias current signal to a current mirror circuit coupled with the first stage to control a first stage bias current, and an adjustment circuit to reduce the amplifier bias current signal and increase the first stage gain when the input voltage signal is near a first supply voltage or a second supply voltage..
Texas Instruments Incorporated


 Corona ignition with self-tuning power amplifier patent thumbnailCorona ignition with self-tuning power amplifier
A power amplifier circuit for a corona ignition system is provided. The circuit includes an inductor and capacitor connected to one end of a secondary winding of an rf transformer.
Federal-mogul Ignition Company


 Voltage regulator patent thumbnailVoltage regulator
Provided is a voltage regulator configured to suppress a fluctuation in output voltage even when a power supply voltage fluctuates, thereby realizing stable operation thereof. The voltage regulator includes a control circuit including a first input terminal connected to a drain of an output transistor, a second input terminal connected to a power supply terminal, an overshoot detection circuit connected to the first input terminal, and a power supply voltage detection circuit connected to the second input terminal, and being configured to cause a boost current to flow through an error amplifier circuit when an output voltage and a power supply voltage largely fluctuate with respect to a predetermined voltage..
Sii Semiconductor Corporation


 Switched capacitor power amplifier circuits and methods patent thumbnailSwitched capacitor power amplifier circuits and methods
The present disclosure includes a switched capacitor power amplifier. In one embodiment, an scpa includes a first capacitor array for coupling charge to a common node using first component of a signal.
Qualcomm Incorporated


 Electrical signal amplifier, circuit arrangement and method patent thumbnailElectrical signal amplifier, circuit arrangement and method
An electrical signal amplifier, having an amplifier input and an amplifier output is provided, which are set up to receive an electrical input signal and to output an amplified signal as electrical output signal, wherein an amplifier circuit arranged between the amplifier input and the amplifier output and amplifying the electrical input signal has a voltage divider circuit and a series circuit of gate-source paths in a transistor arrangement, which is assigned to an amplifier stage, the voltage divider circuit is connected downstream of the amplifier input, and an output of the voltage divider circuit is connected to gate contacts of the series circuit of gate-source paths, and a gate voltage supply circuit is connected to the gate contacts of the series circuit of gate-source paths. The disclosure furthermore relates to a method for amplifying an electrical signal by means of an electrical signal amplifier..
Brandenburgische Technische Universität Cottbus - Senftenberg


 High gain rf power amplifier with negative capacitor patent thumbnailHigh gain rf power amplifier with negative capacitor
A radio frequency (rf) power amplifier circuit includes an input and an output. A power amplifier transistor has a first terminal connected to the input, a second terminal connected to the output, and a third terminal defined by a degeneration inductance.
Rfaxis, Inc.


 Amplifier circuit and methods of operation thereof patent thumbnailAmplifier 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.


 Amplifiers patent thumbnailAmplifiers
This application relates to audio amplifier circuitry (100). An amplifier module (103) is located in a signal path between an input (101) and an output (102).
Cirrus Logic International Semiconductor Ltd.


 Rf power amplifiers with diode linearizer patent thumbnailRf power amplifiers with diode linearizer
A radio frequency (rf) power amplifier circuit with a diode linearizer circuit. The power amplifier circuit has an input and an output, as well as a power amplifier transistor with a first terminal connected to the input, a second terminal connected to the output, and a third terminal.
Skyworks Solutions, Inc.


 Power saving apparatus of capacitive pointer patent thumbnailPower saving apparatus of capacitive pointer
A power saving apparatus of a capacitive pointer is disclosed. The power saving apparatus of a capacitive pointer comprises an amplifier circuit, a first comparator circuit and a second comparator circuit, a controller and a switch.
Waltop International Corporation


System, apparatus, and measuring ion concentration with a standard deviation correction

Embodiments of the inventive concept include a portable ion concentration apparatus including a controller, a storage section to store one or more data samples, an amplifier circuit, and a chemical field effect transistor (chemfet). The chemfet and the amplifier circuit can indicate a quantity of nitrate levels in a sample media or a reference media.
Suprasensor Technologies, Llc

Signal readout circuit, imaging apparatus, and imaging system

Provided is a signal readout circuit, including: an input unit to which a first signal and a second signal are input; a first holding capacitor configured to hold the first signal input from the input unit; a second holding capacitor configured to hold the second signal input from the input unit; and an amplifier circuit including an input terminal and an output terminal and configured to be able to input a signal held in one of the first holding capacitor and the second holding capacitor to the input terminal, in which, in a period in which the first signal is input from the input unit to the first holding capacitor, the first signal is input to the input terminal of the amplifier circuit via the first holding capacitor.. .
Canon Kabushiki Kaisha

Common gate multiple input low noise amplifier

Antenna diversity integrated circuit having two or more rf input connections for connecting an antenna (1a, 1b, 1c). A low noise amplifier circuit is present having a first stage (7a, 7b, 7c) for each one of the two or more rf input connections and a single second stage (8).
Greenpeak Technologies B.v.

Audio amplifier circuit, audio output device using the same, and electronic device using the same

An audio amplifier circuit for driving an electro-acoustic transducer, which is bridged transless (btl)-connected to the audio amplifier circuit, in a filterless manner, including: a class d amplifier including a high side transistor and a low side transistor; a high side driver configured to drive the high side transistor; and a low side driver configured to drive the low side transistor, as a pair, wherein the low side driver is configured so that a time for turning off the low side transistor by the low side driver is longer than that for turning off the high side transistor by the high side driver.. .
Rohm Co., Ltd.

Photosensitive imaging apparatus and forming same

A photosensitive imaging apparatus and a method of forming such an apparatus are disclosed. The apparatus includes: a first semiconductor substrate, including a photosensitive semiconductor layer including an array of photodetectors; and a second semiconductor substrate, stacked with the first semiconductor substrate and including a pixel-circuitry semiconductor layer including an array of in-pixel amplifier circuitries.
Shanghai Jadic Optoelectronics Technology Co., Ltd

Ramp generator for low noise image sensor

A readout circuit for use in an image sensor includes a sense amplifier circuit coupled to a bitline to sense analog image data from a pixel cell of the image sensor. An analog to digital converter is coupled to the sense amplifier circuit to convert the analog image data to digital image data.
Omnivision Technologies, Inc.

Solid-state imaging device

The solid-state imaging device includes unit cells each of which and generates a pixel signal corresponding to a light reception amount, vertical signal lines each of which is provided for a corresponding column of the unit cells and transfers the corresponding pixel signal, comparators each of which is provided for corresponding one of the vertical signal lines, and a ramp signal generation circuit that supplies a common ramp signal to the comparators. Each of the comparators includes a differential amplifier circuit that includes a transistor to which the ramp signal or the pixel signal is input, a transistor to which the other of the ramp signal and the pixel signal is input, an output terminal for outputting a signal corresponding to a difference between the ramp signal and the pixel signal, and a voltage generation circuit for reducing fluctuations of charge accumulated in a capacitance component of the transistor..
Panasonic Intellectual Property Management Co., Ltd.

Image sensor circuit with power noise filtering function and control method thereof

The present invention provides an image sensor circuit with a power noise filtering function and a control method thereof. The image sensor circuit includes: an image sensing unit, for sensing an image, to generate an image sensed signal; a power noise sensing unit, for sensing a power noise, to generate a power noise signal; a differential amplifier circuit, which is coupled to the image sensing unit and the power noise sensing unit, for receiving the image sensed signal and the power noise signal, to generate a differential filtered signal by a differential amplification operation between the image sensed signal and the power noise signal; and an analog-to-digital converter (adc) circuit, which is coupled to the differential amplifier circuit, for receiving the differential filtered signal, to generate a digital image signal..
Pixart Imaging Incorporation

Digital predistortion for dual-band power amplifiers

A signal processing circuit arrangement may include a preamplifier circuit configured to map a first dimension input and a second dimension input to a first subset of a plurality of lookup table coefficients of a two-dimensional (2d) lookup table, wherein the first dimension input and the second dimension input each represent a signal level of one or more input signals, extrapolate from the first subset of the plurality of lookup table coefficients to generate a lookup table output, and apply the lookup table output to the one or more input signals to generate a predistorted input signal for an amplifier.. .
Intel Corporation

Bias-boosting circuit with a modified wilson current mirror circuit for radio frequency power amplifiers

A current mirror circuit for biasing a power amplifier includes a modified wilson current mirror with a pair of first and second mirror transistors connected to a third transistor. The first mirror transistor is configured for operating in a saturation mode, with a gate voltage of the first mirror transistor being lower than a gate voltage of the power amplifier.
Morfis Semiconductor, Inc.

Wideband doherty amplifier circuit with integrated transformer line balun

A doherty amplifier circuit includes an rf input terminal, an rf output terminal, a main amplifier having a first input terminal and a first output driving terminal, and a peaking amplifier having a second input terminal and a second output driving terminal. An output combining network is configured to feed output current from the first and second output driving terminals into a summing node.
Infineon Technologies Ag

Semiconductor devices and semiconductor systems

A semiconductor device may include a power control signal generator and a sense amplifier circuit. The power control signal generator may generate a first power control signal, an enablement moment of the first power control signal controlled according to a logic level combination of temperature code signals in response to a mode signal.
Sk Hynix Inc.

Circuits for control of time for read operation

A circuit for control of time for read operation is disclosed which additionally incorporates a dummy device circuit and a dummy sensitive amplifier circuit, uses a current mirror circuit to mirror a reference current in a reference device circuit into the dummy device circuit to generate a mirrored current, and generates time control signals based on the mirrored current. Due to the same adaptation of the mirrored current to the size of a test device as the reference current, the time control signals are also adapted to the size of the test device.
Shanghai Huahong Grace Semiconductor Manufacturing Corporation

Current detection circuit

To provide a current detection circuit capable of suppressing the occurrence of a large potential difference between input terminals of a differential amplifier circuit, and preventing degradation of input transistors. A differential amplifier circuit is equipped with a clamp circuit which limits gate-source voltages of a pair of pmos transistors each having a bulk and a source connected to each other with the sources of the pair of pmos transistors as input terminals..
Sii Semiconductor Corporation

Mismatch-compensated sense amplifier for highly scaled technology

Circuits and methods are provided for compensating an offset voltage measured between a first transistor and a second transistor of a sense amplifier circuit that is configured to sense a bit line signal during a sensing phase. The first transistor and the second transistor are cross-coupled.
Freescale Semiconductor, Inc.

Gas sensor

A gas sensor instrument comprises a housing formed of two parts (102, 10) and a diffusion chamber inside the housing. The diffusion chamber is formed from two parts (106, 108) and at least one of the diffusion chamber parts is formed integrally with one of the housing parts.
Corentium As

Class-d amplifier

One example discloses a class-d amplifier apparatus, comprising: an amplifier circuit, having a set of input terminals, a set of output terminals, a quiescent circuit configuration, and an active circuit configuration; an amplifier control device, coupled to the amplifier circuit; wherein the amplifier control device is configured to place the amplifier circuit in the quiescent circuit configuration before measuring a voltage between the set of output terminals; wherein the amplifier control device is configured to add the output terminals voltage from the set of input terminals before placing the amplifier circuit in the active circuit configuration.. .
Nxp B.v.

Charge pump current adjustment

A charge pump circuit may include an output node, a current source circuit, a current sink circuit, a first amplifier circuit, and a second amplifier circuit. The current source circuit may be configured to source current to the output node.
Fujitsu Limited

Memory device, semiconductor device, and electronic device

A column driver includes an amplifier circuit for amplifying data of a read bit line and a latch circuit for retaining the amplified data. The latch circuit includes a pair of nodes q and qb for retaining complementary data.
Semiconductor Energy Laboratory Co., Ltd.

Distributed output matching network for a radio frequency power amplifier module

Disclosed are systems and methods related to matching an impedance of the power amplifier to an impedance of the antenna in a power amplifier module that includes an amplifier circuit residing on a first semiconductor die and an output matching network (omn) that includes a first partial omn and a second partial omn. The first partial omn resides on the first semiconductor die and matches an output impedance of the amplifier circuit to an input impedance of the second partial omn.
Skyworks Solutions, Inc.

Signal processing device, and driving method and program thereof

A power switch 307a is provided between a bias generation circuit 301 and a high potential power source, or a power switch 307b is provided between the bias generation circuit 301 and a low potential power source. A bias potential vb output from the bias generation circuit 301 is held by a potential holding circuit 300.
Semiconductor Energy Laboratory Co., Ltd.

Capacitive trans-impedance amplifier circuit with charge injection compensation

A capacitive trans-impedance amplifier circuit with charge injection compensation is provided. A feedback capacitor is connected between an inverting input port and an output port of an amplifier.
Teledyne Scientific & Imaging, Llc

Semiconductor memory device and driving the same

In a conventional dram, when the capacitance of a capacitor is reduced, an error of reading data easily occurs. A plurality of cells are connected to one bit line mbl_.
Semiconductor Energy Laboratory Co., Ltd.

Integrated circuit using topology configurations

Various implementations described herein may refer to and may be directed to circuitry for an integrated circuit using topology configurations. For instance, in one implementation, such circuitry may include a memory array having a plurality of memory cells.
The Regents Of The University Of Michigan

Wireless communication device, control wireless communication device and phase shifter

A wireless communication device includes a delay circuit to generate four or more delay signals, an amplifier circuit amplifying the four or more delay signals to generate four or more amplified delay signals, and a combiner circuit combining at least two amplified delay signals to generate an output signal, a second phase of a second amplified delay signal is between a first phase of a first amplified delay signal and a third phase of a third amplified delay signal, gains of the amplifier circuit for the four or more delay signals are controlled such that the output signal is generated by combining the first amplified delay signal and the third amplified delay signal, and a phase of the output signal is between the first phase of the first amplified delay signal and the third phase of the third amplified delay signal.. .
Fujitsu Limited

Semiconductor integrated circuit, communication module, and smart meter

A semiconductor integrated circuit includes a transformer that, includes a first winding and a second winding, a low-noise amplifier circuit that includes an input terminal in which at one end of the second winding of the transformer is connected to the input terminal, and a switch that is provided between the one end and another end of the second binding of the transformer. The switch is opened and the transformer functions as an input impedance matching circuit for the low-noise amplifier circuit in a period in which a reception signal is supplied to the first winding of the transformer.
Renesas Electronics Corporation

Low noise amplifier circuit

A low noise amplifier circuit includes a first amplifier including a first transistor and a second transistor that are cascode-connected to each other; a second amplifier including a third transistor and a fourth transistor that are cascode-connected to each other; a source terminal matcher connected to a source of the first transistor and a source of the third transistor; and an input matcher providing input that is impedance-matched by a first inductor and a second inductor to a gate of the first transistor and providing input which is impedance-matched by the first inductor to a gate of the third transistor. The circuit is able to operate in a dual-band and provide impedance matching, while being simpler than alternative circuits..
Samsung Electro-mechanics Co., Ltd.

Amplifier

In an embodiment an amplifier circuit comprises an amplifying element configured to amplify a radiofrequency input signal; a bias modulator configured to provide a bias voltage to the amplifying element, the bias voltage depending on a bias control signal; and a tuneable matching network configured to modulate the load to which the output of the amplifying element is applied.. .
Kabushiki Kaisha Toshiba

Semiconductor integrated circuit, communication module, and smart meter

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

Transimpedance amplifier circuit

A transimpedance amplifier circuit (1) includes an amplifier (22) that amplifies a received signal, an automatic gain control (agc) circuit (2) that controls the amplification gain of the amplifier by a first time constant in accordance with the level of the received signal, and a first selection circuit (25) that selects the first time constant from a plurality of predetermined values. This can simultaneously implement a short time constant of an agc function necessary to instantaneously respond to a burst signal and a long time constant of the agc function necessary to obtain a satisfactory bit error rate (ber) characteristic in a continuous signal by an inexpensive and compact circuit arrangement..
Ntt Electronics Corporation

Electromagnetic formation evaluation tool apparatus and method

Apparatus and methods are described, such as for obtaining information indicative of a formation resistivity using an electromagnetic formation evaluation tool apparatus. For example, the electromagnetic formation evaluation tool apparatus includes exciter electrodes configured to transmit and receive a formation current.
Halliburton Energy Services, Inc.

Audio signal amplification apparatus and use

An audio signal amplification apparatus includes a clamp body assembly for clamping onto a vent pipe of an oil tank and an amplifier control assembly having a pc board containing amplifier circuitry configured for amplifying a vent alarm sound coming from the vent pipe and wirelessly transmitting the amplified vent alarm sound to a receiver carried by a person filling the oil tank. The clamp body assembly includes a central shell subassembly supporting the pc board and a pair of curved arm members extending from opposite sides of the central shell subassembly for surrounding and clamping on a portion of the vent pipe so as to facilitate attaching the amplifier control assembly to the vent pipe.

A doherty amplifier with additional delay element

An amplifier includes two amplifier circuits and a power splitter. The power splitter splits a signal to be amplified and generates a phase displacement of 90° in the case of a rated frequency between resulting partial signals.
Rohde & Schwarz Gmbh & Co. Kg

Positioning device

A locating device includes an ac voltage locating apparatus. The ac voltage locating apparatus has a first receiving apparatus configured to receive a first coupling signal from a locatable object.
Robert Bosch Gmbh

Sensor fault detection circuit, relative angle detection device, and motor-driven power steering apparatus

A sensor fault detection circuit includes: a first amplifier circuit that includes a first pair of elements operating reversely to each other, and amplifies a first sensor signal input from a first voltage amplifier; a second amplifier circuit that includes a second pair of elements operating reversely to each other, and amplifies a second sensor signal input from the second voltage amplifier; and a fault diagnosis unit that detects abnormality of a first voltage signal or a second voltage signal based on the first voltage signal output from the first amplifier circuit and the second voltage signal output from the second amplifier circuit. Characteristics of the first pair of elements are asymmetrical to each other, and characteristics of the second pair of elements are asymmetrical to each other in a same relationship with a relationship of the asymmetry between the characteristics of the first pair of elements..
Showa Corporation

Compact microwave power amplifier circuit

A power amplifier structure having: a power divider for dividing power in a signal fed to an input port between a pair of output ports. Each one of a pair of amplifiers has: an input coupled to a corresponding one of the pair of power divider output ports; and an output.
Raytheon Company

Bias-starving circuit with precision monitoring loop for voltage regulators with enhanced stability

A regulator circuit includes a voltage regulator having a stability control input and an output for providing a regulated output voltage, an amplifier circuit having an input for receiving an error voltage of the voltage regulator, and an output, and a control circuit having an input coupled to the output of the amplifier and an output coupled to the stability control input of the voltage regulator, such that the regulator stability is maximized while the error voltage is minimized. The voltage regulator includes an ldo voltage regulator, the amplifier circuit includes an operational amplifier circuit, and the control circuit includes a load-sensing or load-replicating circuit..
Aeroflex Colorado Springs Inc.

Hydraulic steering control system

A hydraulic fluid supply portion of a hydraulic steering control system may include an accumulator holding a quantity of pressurized steering fluid, and a priority valve. The priority valve may have a priority supply inlet port fluidly connected to the accumulator for receiving pressurized steering fluid from the accumulator, and a priority supply outlet port fluidly connected to a steering flow amplifier circuit.
Caterpillar Inc.



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


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