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Amplifier Circuit

Amplifier Circuit-related patent applications - as published by the U.S. Patent and Trademark Office (USPTO).


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Class e2 amplifier
Qualcomm Incorporated
June 15, 2017 - N°20170170794

An amplifier includes an amplifier circuit comprising a switch, the switch configured to provide an output signal responsive to an input signal, the output signal comprising a first output signal at a fundamental frequency and a second signal at a second harmonic of the fundamental frequency, the input signal configured to control the switch according to a nominal 25% off, 75% on ...
Timing alignment sensitivity for envelope tracking
Kabushiki Kaisha Toshiba
June 15, 2017 - N°20170170791

In one embodiment a transmitter is disclosed. The transmitter comprises an envelope tracking amplifier circuit comprising a power amplifier; a radiofrequency path configured to couple a radiofrequency component of an input signal to an input of the power amplifier; an envelope path configured to modulate a supply voltage of the power amplifier with an envelope signal, the envelope path comprising ...
Power amplifier circuit
Murata Manufacturing Co., Ltd.
June 15, 2017 - N°20170170789

A power amplifier circuit includes a first amplifier transistor and a bias circuit. The first amplifier transistor amplifies a first signal and outputs a second signal. The bias circuit supplies a bias voltage or a bias current to the first amplifier transistor. The first amplifier transistor includes plural unit transistors disposed in a substantially rectangular region. The bias circuit includes ...
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Amplifier Circuit Patent Applications
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  • 159+ full patent PDF documents of Amplifier Circuit-related inventions.
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Amplifier circuit and voltage regulator
Sii Semiconductor Corporation
June 15, 2017 - N°20170170730

Provided are an amplifier circuit capable of improving phase characteristics, and a voltage regulator including the amplifier circuit. The amplifier circuit is configured to amplify an input voltage and to output the input voltage, and includes a current source, a first transistor having a gate to which the input voltage is applied, and a second transistor having a gate to ...
Sense amplifier
Intel Ip Corporation
June 15, 2017 - N°20170169870

Embodiments include a sense amplifier circuit including first and second paths that may be selectively coupled to a memory cell or a reference cell as part of a two-phase read process. The sense amplifier may include a biasing circuit to provide an adaptive bias voltage to a transistor of the first and/or second path to cause the transistor to ...
Signal processing circuit, signal processing ic, and semiconductor device
Semiconductor Energy Laboratory Co., Ltd.
June 15, 2017 - N°20170168648

An object is to improve the signal-to-noise ratio (snr). A signal processing circuit includes first to fourth terminals, a switch circuit, and an integrator circuit. The integrator circuit includes an amplifier circuit. The amplifier circuit has an output terminal, a terminal (−), a first terminal (+), and a second terminal (+). The switch circuit has a function of electrically connecting the terminal (&#...
Amplifier Circuit Patent Pack
Download 159+ patent application PDFs
Amplifier Circuit Patent Applications
Download 159+ Amplifier Circuit-related PDFs
For professional research & prior art discovery
inventor
  • 159+ full patent PDF documents of Amplifier Circuit-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Active harmonic filters for integrated radio frequency power amplifiers
Skyworks Solutions, Inc.
June 08, 2017 - N°20170163294

A radio frequency front end circuit includes an output signal transmission line, an amplifier circuit with an input connected to a radio frequency signal source and an output connected to the output signal transmission line. A harmonic suppression circuit is connected to the amplifier circuit, and includes an active circuit element having a frequency-dependent impedance and is tuned as a ...
Digital-to-analog converter and high-voltage tolerance circuit
Via Alliance Semiconductor Co., Ltd.
June 08, 2017 - N°20170163249

A digital-to-analog converter (dac) and a high-voltage tolerance circuit are provided. The dac includes a high-voltage tolerance circuit. The high-voltage tolerance circuit is configured to generate a reference voltage, and select the reference voltage or a first power-source voltage to control the node voltage of each branch of an operational amplifier circuit of the high-voltage tolerance circuit according the logical ...
Fast switching power amplifier, low noise amplifier, and radio frequency switch circuits
Skyworks Solutions, Inc.
June 08, 2017 - N°20170163226

A speed-up circuit connectable to a capacitive load to reduce charging time thereof from a pulsed current source connected there includes a first circuit node connectable to the capacitive load. An operational amplifier circuit is connected to the first circuit node and configured as a low resistance voltage source. Added current from the operational amplifier flows to the capacitive load ...
Low dropout voltage regulator for highly linear radio frequency power amplifiers
Skyworks Solutions, Inc.
June 08, 2017 - N°20170163218

A radio frequency amplifier circuit has a signal input and a signal output. A primary amplifier is connected to the signal input and the signal output. A low dropout voltage regulator is connectible to an external power supply and to the primary amplifier, and generates a set voltage to bias the primary amplifier from a variable voltage provided by the ...
Power amplifier circuit
Industrial Technology Research Institute
June 08, 2017 - N°20170163216

A power amplifier circuit including a power transistor, a variable impedance circuit, first and second envelope detecting circuits is provided. The power transistor receives an input signal and outputs an output signal. The variable impedance circuit includes an impedance control transistor and a first filter capacitor. An equivalent impedance of the variable impedance circuit varies with the input signal. The ...
High-gain low noise figure complementary metal oxide semiconductor amplifier with low current consumption
Skyworks Solutions, Inc.
June 08, 2017 - N°20170163215

A radio frequency low noise amplifier circuit with a receive signal input, a receive signal output, and a voltage source include a low noise amplifier and a coupled inductor circuit with a primary inductive chain connected to the output of the low noise amplifier and to the voltage source. The coupled inductor circuit further includes a secondary inductive chain with ...
Amplifier circuit and method of recovering input signal in the amplifier circuit
Korea Advanced Institute Of Science And Technology
June 01, 2017 - N°20170155363

An amplifier circuit and a method of recovering an input signal in the amplifier circuit are provided. The amplifier circuit may recover an input signal by using a time constant and an output signal of a signal amplifier which is delayed by a certain period, based on characteristics of an inverse laplace transform of a transfer function of the signal ...
Amplifier Circuit Patent Pack
Download 159+ patent application PDFs
Amplifier Circuit Patent Applications
Download 159+ Amplifier Circuit-related PDFs
For professional research & prior art discovery
inventor
  • 159+ full patent PDF documents of Amplifier Circuit-related inventions.
  • Exact USPTO filing data with full-text, images, drawings & claims.
  • Index pages: Table View and Image-Grid View layouts. All images in each PDF.
Amplifier circuit and ultrasonic probe
Citizen Holdings Co., Ltd.
June 01, 2017 - N°20170150945

A current controlling current source unit 53 changes an outputting current based on a transition time setting signal tp. A current controlling current source unit 54 changes a drawing current based on a transition time setting signal tn. An amplitude control unit 55 changes a power source voltage supplied to the current controlling current source unit 53 and changes amplitude of a voltage generated ...
Band-based amplifier linearity adjustment
Citizen Holdings Co., Ltd.
May 25, 2017 - N°20170149400

A system improve amplifier efficiency of operation relative to that of an amplifier with fixed biasing is operating channel dependent. A control circuit determines a bias current for an amplifying transistor of an amplifier circuit based at least in part on an operating channel. The amplifying transistor operates in a multi-channel system, where the bias current for the amplifying transistor ...
Programmable gain amplifier with analog gain trim using interpolation
Citizen Holdings Co., Ltd.
May 25, 2017 - N°20170149397

Disclosed examples include programmable gain amplifier (pga) circuits with an operation amplifier circuit having a first amplifier input and a second amplifier input including a plurality of second input nodes, a resistor array including a plurality of resistor sections connected in series with one another between the amplifier output and a reference voltage node, and a trim select circuit coupled ...
Mismatch correction in differential amplifiers using analog floating gate transistors
Citizen Holdings Co., Ltd.
May 25, 2017 - N°20170149395

An analog differential amplifier circuit, such as an operational transconductance amplifier (ota), with input offset correction capability. First and second analog floating gate (afg) devices each include a trim transistor connected in parallel with a series transistor in first and second input legs, respectively, of the amplifier. Floating gate electrodes in the afg devices are differentially programmed to correct for ...
Matching network circuit and radio-frequency power amplifier with odd harmonic rejection and even harmonic rejection ...
Citizen Holdings Co., Ltd.
May 25, 2017 - N°20170149394

A matching network circuit for rf power amplifier circuit capable of odd harmonic rejection and even harmonic rejection in the differential mode and the common mode, respectively. The matching network circuit includes a differential mode filter with a differential resonant frequency and a passive component coupled to a virtual short circuit node at the differential mode filter, wherein a common ...
Filter capacitor degradation and calibration
Citizen Holdings Co., Ltd.
May 25, 2017 - N°20170149343

Methods and power conversion systems in which a capacitor degradation detection system includes an adjustable gain amplifier circuit is calibrated by automatic adjustment of at least one amplifier gain to accommodate current and voltage levels of a particular filter circuit in a first mode. Capacitance values of filter capacitors are calculated according to amplified current signals and compared with an ...
Low power amplifier
International Business Machines Corporation
May 18, 2017 - N°20170141781

A phase-locked loop (pll) circuit, sense amplifier circuit, and method of operating a sense amplifier circuit are disclosed. The sense amplifier circuit comprises first and second operational amplifiers, each operational amplifier respectively comprising a non-inverting input terminal, an inverting input terminal, and an output stage comprising a current gating circuit having two current gating input terminals, the output stage coupled ...
Apparatus and method for dynamically biased baseband current amplifier
Samsung Electronics Co., Ltd.
May 18, 2017 - N°20170141737

An amplifier circuit is provided. The amplifier circuit includes an amplifier stage; a plurality of variable transistors connected to the amplifier stage; a transconductor connected to at least one of the plurality of variable transistors; and a hybrid differential envelope detector and full-wave rectifier connected to the transconductor.
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