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WO/2020/163821A1 |
Radio Frequency (RF) amplifier design with RFIC suffers gain variations from gain variations due to wafer process variations, temperature changes, and supply voltage changes. Three methods are proposed to achieve constant amplifier gain,...
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WO/2020/162981A1 |
An apparatus includes at least one processing device configured to obtain samples (202) of an input signal to be amplified and, in real- time, pre-distort at least some of the samples using pre-distortion values (206) from at least one l...
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WO/2020/163708A1 |
Amplifier input protection circuits are described. In one embodiment, a photoreceiver for a lidar system has a photodetector configured to generate an output current in response to received light. A transimpedance amplifier is configured...
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WO/2020/159586A1 |
Described is high-current drive class AB operational trans-conductance amplifier (OTA) output that can operate under low supply voltages (e.g., below 0.9 V) while maintaining desired functionality (e.g., reliable startup behavior, well-d...
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WO/2020/156884A1 |
An amplifier circuit includes a circuit path (320) of serially connected complementary type transistors (Mp1, Mn1). First and second feedback loops include a loop amplifier (301), the transistors (Mp1, Mn1) of the circuit path (320) and ...
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WO/2020/158080A1 |
A higher harmonics processing circuit comprises a power supply line for supplying electric power to an amplifying element, and a higher harmonics processing unit, connected to the power supply line, for performing higher harmonics proces...
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WO/2020/160393A1 |
A circuit (200) comprises a sensing resistor (Rs) with a resistance Rs, a first amplifier circuit (210) with a first gain factor G, a second amplifier circuit (245) with a second gain factor (l/A), a third amplifier circuit, a current mi...
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WO/2020/151082A1 |
An output matching circuit and a power amplifier formed by same. The output matching circuit comprises an impedance conversion component (1) and a first matching component (2) connected to the input end of the impedance conversion compon...
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WO/2020/147672A1 |
A current detection circuit for a loudspeaker (500), comprising a first detection resistor (RSP), a second detection resistor (RSN), a sampling selection circuit (100), an input selection circuit (200), and a processing circuit (300). On...
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WO/2020/147984A1 |
A clamp circuit can control a clamp transistor such that a change in a photodiode current detection voltage signal in an optical receiver circuit can control the clamp transistor to change state when a difference of a clamp voltage and t...
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WO/2020/148094A1 |
The invention relates to a transmitting and receiving device having a wide-band HF power amplifier, in particular an N-way Doherty amplifier having active load modulation. The aim of the invention is to provide, by means of suitable desi...
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WO/2020/143197A1 |
Disclosed are an inverting pseudo-fully differential amplifier having a common-mode feedback control circuit, and a method for keeping an output common-mode level stable. The inverting pseudo-fully differential amplifier comprises a pseu...
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WO/2020/146408A1 |
An example process includes reducing a quality factor of a first tunable bandpass filter, used, for example, in a low-noise amplifier stage of a polar receiver. A first wideband test signal centered at a desired center frequency of a sec...
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WO/2020/146109A1 |
A polar transmitter including a digital power amplifier cell that includes a first circuit and an amplifier circuit. The first circuit is configured to receive a phase modulated carrier signal and to generate a PMOS control signal and an...
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WO/2020/146595A1 |
An audio power amplifier includes a first channel and a second channel, each of which includes an input to receive an input signal, a pair of switching devices, drive circuitry for driving the switching devices to produce a signal, and a...
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WO/2020/144039A1 |
An electrical amplifier comprising a differential preamplifier (PA) having a first output port and a second output port; a first output unit connected to the first output port of the differential preamplifier and a second output unit con...
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WO/2020/146287A1 |
Systems and methods are provided for improved noise performance of audio amplifiers. In one example, a system includes a multistage amplifier comprising at least a first stage amplifier and a second stage amplifier. The system further in...
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WO/2020/143934A1 |
A bias circuit (200) for a PA (100) is disclosed. It comprises a first transistor (M1) having its drain terminal and its gate terminal connected to a first circuit node (x) and its source terminal connected to a first supply terminal (GN...
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WO/2020/146591A1 |
The technology described in this document can be embodied in an audio power amplifier that includes a pair of switching devices, drive circuitry for driving the pair of switching devices to produce a signal, and an output filter to filte...
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WO/2020/141022A1 |
The present invention relates generally to the technical field of broad-band amplifiers for high data-rate wired/optical communications. The invention presents in this technical field a multiple resonance network. The multiple resonance ...
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WO/2020/140918A1 |
A receiver and a low-noise amplifier. The receiver comprises a main signal pathway and an auxiliary signal pathway, a combining circuit and an intermediate-frequency amplifying circuit, wherein the main signal pathway comprises a gate se...
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WO/2020/137082A1 |
The present invention is an audio playback device comprising: a signal processing circuit that generates multichannel audio data; an attenuation control unit that is connected to the signal processing circuit, and controls the attenuatio...
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WO/2020/134417A1 |
A nonlinear feedback circuit comprises one or more diodes (D1-Dn). Also provided is a low noise amplifier using the nonlinear feedback circuit. The present invention employs a negative temperature characteristic of a diode (D1-Dn) to per...
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WO/2020/139450A1 |
High efficiency amplitude DACs and RFDACs employing such amplitude DACs are discussed. One exemplary embodiment is a DAC comprising a plurality of DAC stages, wherein each DAC stage of the plurality of DAC stages is associated with a res...
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WO/2020/133524A1 |
A variable gain amplifier and a phase array receiver. The variable gain amplifiers (30, 40) comprise: Cascode circuits (31, 41) for outputting an adjustable current to output matching networks (33, 43), wherein the Cascode circuits (31, ...
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WO/2020/137299A1 |
The present invention is a speaker device having: an amplifier; a protection circuit connected to an input side of the amplifier; and a capacitive load connected to an output side of the amplifier. The protection circuit has: a clipper f...
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WO/2020/132963A1 |
Embodiments of the present application disclose an integrated circuit. The integrated circuit comprises: a first resonant circuit, a second resonant circuit, and a connection circuit. The first resonant circuit comprises a first inductor...
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WO/2020/129184A1 |
A class AB amplifier (A200) is provided with: an active load stage (AL210) which receives a first input current (IIM) and a second input current (IIP), and converts the respective input currents into a first voltage (Vgpn) and a second v...
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WO/2020/131432A1 |
Apparatus and method (200) for dynamically linearizing multi-carrier power amplifiers (105). The method (200) includes determining a first carrier configuration of an RF transmitter (100) during a first timeslot of operation of the RF tr...
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WO/2020/127825A1 |
A radio-frequency (RF) amplifier device (3) comprises a signal input (14) for receiving an RF electrical signal, a variable-gain amplifier (17a) for amplifying the received signal, and a signal output (7) for outputting the amplified sig...
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WO/2020/130167A1 |
In designing a millimeter high-output power amplifier, provided is a power amplifier for power coupling by using a Lange coupler as a method to increase power efficiency and reduce the total chip consumption area. The power amplifier acc...
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WO/2020/131428A1 |
System and method (400) for power amplifiers (216), wherein the method (400) includes determining a composite RMS power and peak power for a carrier configuration of an RF transmitter (100), determining a number of active banks of power ...
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WO/2020/126475A1 |
A transconductor circuitry (10) with adaptive biasing comprises a first input terminal (ElOa) to apply a first input signal (inp), and a second input terminal (ElOb) to apply a second input signal (inn). A control circuit (200) is config...
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WO/2020/125952A1 |
An amplifier (3) for amplifying an electrical input signal (Vin) is provided. This amplifier (3) comprises at least one amplifier stage (31, 32, 33) and at least one feedback loop (34, 35, 36), which comprises a variable feedback loop el...
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WO/2020/126336A1 |
A sensor arrangement for light sensing for light-to-frequency conversion. The sensor arrangement includes a photodiode, an analog-to-digital converter (ADC) operable to perform a chopping technique in response to a first clock signal (CL...
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WO/2020/120593A1 |
The invention relates to a sensor arrangement (0) with a piezoelectric sensor (1) and a measuring amplifier (3), the piezoelectric sensor (1) being electrically connected to the measuring amplifier (3), the piezoelectric sensor (1) provi...
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WO/2020/121815A1 |
The present invention is provided with a plurality of waveguide structures 12 loaded on a top surface 11U that faces a bottom surface 11B of a metal case 11, said bottom surface 11B having a high-frequency circuit mounted thereon. The he...
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WO/2020/117317A1 |
A full duplex (FDX) trunk amplifier circuit configured to be coupled between a remote PHY (RPHY) circuit and one or more cable modems (CMs) is disclosed. The FDX trunk amplifier circuit comprises a trunk amplifier circuit comprising an a...
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WO/2020/113866A1 |
A dual-mode power amplifier capable of switching operating power and a mode switching method. The power amplifier uses a multi-tap input transformer (T1) to realize the switching of a front stage load line and an output stage load line b...
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WO/2020/114731A1 |
The invention relates to a high-frequency power transistor (1) comprising a transistor (2), at least one capacitor (3) and a housing, which at least partially surrounds the transistor (2) and the capacitor (3). A first connection (4) for...
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WO/2020/113865A1 |
A matching circuit capable of switching load lines, a load line switching method, and a power amplifier. The matching circuit performs matching with respect to an output impedance of the power amplifier amplifying an input signal and out...
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WO/2020/112283A1 |
An integrated circuit is disclosed for gain-dependent impedance matching and linearity. The integrated circuit includes at least two amplifier branches, an input inductor, and at least two degeneration inductors. Each amplifier branch in...
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WO/2020/109924A1 |
A charge preamplifier device (100) integrated in a chip (200) of semiconductive material comprising: an input (IN) for an input signal (iiN) and an output (OUT) for an output signal (VOUT); a substrate (202) of semiconductive material do...
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WO/2020/110298A1 |
In the present invention, a first baseband signal and a second baseband signal that were subjected to equal distribution are corrected so as to have mutually different amplitudes and phases, such correction carried out in accordance with...
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WO/2020/112255A1 |
Examples relate to a buffered flipped voltage follower circuit arrangement, low dropout voltage regulators, a capacitive digital-to-analog converter, a transceiver for wireless communication, a mobile communication device, a base station...
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WO/2020/112174A1 |
A pre-bias control circuit for a switching power converter detects the slope of the output voltage over time and outputs an OPEN command when the slope detected is more NEGATIVE than a pre-defined threshold and a pre-charge current that ...
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WO/2020/108386A1 |
The embodiments of the present invention relate to the technical field of electronics, and disclose a radio frequency amplification module and a communications terminal. The radio frequency amplification module of the present invention c...
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WO/2020/110252A1 |
A bias current supply (30) connects a gate terminal of a second source ground transistor (3) to a drain terminal of a first source ground transistor (1), the bias current supply (30) outputting a bias current so that the mutual conductan...
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WO/2020/109873A1 |
A transistor package for a power amplifier is provided. The transistor package includes a plurality of radio frequency, RF, paths that includes a first RF path and second RF path. Each RF path includes a transistor-carrying die and at le...
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WO/2020/072167A9 |
A low noise amplifier includes at least two variable gain amplifier stages, each variable gain amplifier configured to accept an input signal and to provide a load driving signal; a tunable bandpass filter connected as a load to each var...
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