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WO/2024/039610A1 |
A radio-frequency (RF) push-pull amplifier circuit that includes: a first transistor; a transformer; and a first matching circuit comprising at least one capacitor and at least one inductor, in which an input of the first matching circui...
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WO/2024/032411A1 |
A power amplifier and a control method therefor, and a communication device. The power amplifier comprises a signal input end (400), a signal output end (500), and a first signal branch and a second signal branch that are arranged in par...
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WO/2024/033963A1 |
This amplifier (Trc, Trp) uses GaN HEMTs. A diode linearizer (LNZ) and a variable attenuator (VATT) are connected in series to inputs of the amplifier (Trc, Trp). A peak detector (DET) detects a peak value of a drain voltage of the ampli...
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WO/2024/033993A1 |
This distortion compensation device (2) is configured to comprise: a to-be-amplified signal acquisition unit (21) for acquiring a to-be-amplified signal, that is, a signal to be subjected to power amplification by a power amplifier (4); ...
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WO/2024/036025A2 |
An apparatus, including a positive input for an input differential signal; a negative input for the input differential signal; a positive output for an output differential signal; a negative output for the output differential signal; a f...
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WO/2024/032553A1 |
A broadband power amplifier, a broadband power amplification method, an electronic device, and a computer-readable storage medium. The broadband power amplifier comprises: a first balanced power amplifier (100), used to receive a first r...
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WO/2024/031992A1 |
Provided in the present invention is a thermopile pixel, comprising: 2*N thermocouples, which are connected in series, wherein the head end and the tail end of the thermocouples, which are connected in series, serve as differential outpu...
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WO/2024/034682A1 |
This Doherty amplification circuit comprises: a carrier amplifier for amplifying high-frequency signals; a peak amplifier for amplifying high-frequency signals; and a control circuit including a first pass-characteristics-variable circui...
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WO/2024/033320A1 |
A drive device (100) for driving at least one actuator (200) for actuating an optical element (310) of an optical system (4, 10), comprising an end stage (110), which is configured to boost an input voltage (V1) using a quiescent current...
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WO/2024/035495A1 |
A power management circuit is provided. Herein, a transceiver circuit is configured to generate a modulated differential signal that includes information related to a time-variant amplitude of a radio frequency (RF) signal. Accordingly, ...
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WO/2024/035160A1 |
The present disclosure relates to a 5G or 6G communication system for supporting a higher data transmission rate. A power amplifier according to the present disclosure comprises: a signal processor; a control circuit electrically connect...
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WO/2024/029711A1 |
An embodiment of the present disclosure relates to an audio device for blocking noise generated in an idle state in an electronic device. The audio device may include a processor configured to output an audio signal. The audio device may...
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WO/2024/026629A1 |
A power amplification device, a radio remote unit, a base station, and a communication system, relating to the technical field of communications, and used for reducing the energy consumption of the power amplification device. The power a...
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WO/2024/028504A1 |
Disclosed is a recurrent DVR model and a DVR based recurrent neural network for generating a non-linear output signal. The recurrent DVR model includes a magnitude recurrent filter that comprises a recurrent neural network for combining ...
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WO/2024/022958A1 |
A Traveling Wave Parametric Amplifier (TWPA) transmission line with improved bandwidth includes one or more unit cell. Each unit cell includes a capacitor to a ground and a Josephson junction in series configured to provide inductance an...
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WO/2024/026161A1 |
A multi-stage driver circuit (116) has a transmission line (119) coupled to an output of the multi-stage driver circuit (116). The transmission line (119) has inductive elements and programmable capacitive elements (130) selected to shap...
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WO/2024/024334A1 |
The present invention provides a buffer circuit that can achieve a wide dynamic range while maintaining a low output impedance, and with which reduced circuit area and low power consumption can be attained. The buffer circuit comprises a...
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WO/2024/023479A1 |
A driver (300, 400) for driving a transducer has nodes for connection to high-side and low-side voltage supplies, an output node (301) and nodes (N1-N4) for connecting first and second capacitors (C1, C2). A network of switches is config...
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WO/2024/021537A1 |
Provided in the present application are an offset voltage calibration circuit and method. The circuit comprises: a multi-stage amplifier; a gating switch, which comprises a plurality of switches each correspondingly connected to an outpu...
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WO/2024/026184A1 |
Methods and apparatus for wireless communication using a transmitter capable of digital predistortion (DPD) and having a main signal path separated from a predistortion signal path, each path including a digital-to-analog converter (DAC)...
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WO/2024/016725A1 |
Embodiments of the present application provide an analog front-end chip, an analog front-end circuit, and a signal processing device. The analog front-end chip comprises: a first operational amplifier module, configured to perform amplit...
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WO/2024/020032A1 |
Examples of circuitry and systems and methods provide a multi-way configurable amplifier (200) to support various applications. The multi-way configurable amplifier (200) may include a reconfigurable filter (204) that comprises first and...
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WO/2024/016519A1 |
The present application relates to a combined operational amplifier circuit, a chip and a signal processing apparatus. The combined operational amplifier circuit comprises: a first operational amplifier, configured, when an in-phase inpu...
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WO/2024/017878A1 |
The invention generally relates to amplifier circuits for coupling and/or driving an inductive load with a time-continuous current. Example embodiments of the amplifier circuits disclosed herein may for example be used for driving, for e...
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WO/2024/019831A1 |
The present disclosure relates to a radio frequency (RF) module with a protection structure for enhanced ruggedness and reliability. The disclosed RF module includes a power amplifier (PA), a bias circuit configured to provide a direct c...
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WO/2024/015682A1 |
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, an apparatus may receive an indication of a selected digital pre-distortion (DPD) kernel from multiple DPD kernels. The apparatus may ...
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WO/2024/014781A1 |
The present document relates to an electronic device and a method for wireless communication, the electronic device comprising: a wireless communication circuit; and a processor electrically connected to the wireless communication circui...
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WO/2024/011740A1 |
Disclosed in the present invention is a chopper-modulated instrumentation amplifier having an offset voltage cancelling circuit, comprising a first chopper, a second chopper, a chopper operational amplifier, input capacitors C1 and C2, f...
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WO/2024/014150A1 |
This clamp circuit is connected between a ground potential and a node through which a high frequency signal passes. The clamp circuit includes a plurality of clamp elements that are connected in multiple stages. Each of the clamp element...
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WO/2024/008306A1 |
A method and a power amplifier with non-linear supply modulation are disclosed. According to one aspect, a method in a power amplifier includes receiving a first input signal and a first modulated supply voltage to produce a first output...
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WO/2024/008200A1 |
A control circuit for a fully-differential capacitive feedback amplifier, and a control method. The control circuit comprises: an impedance-controllable pseudo resistor, which comprises a plurality of MOS transistors (M5, M6, M7, M8, M9,...
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WO/2024/007727A1 |
A power amplifier, comprising: a first-stage amplification circuit (11), a second-stage amplification circuit (12) connected to an output end of the first-stage amplification circuit (11), and a third-stage amplification circuit (13) con...
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WO/2024/006069A1 |
Circuits and methods for an LNA that enable selection of a first mode providing high gain with wide output impedance matching, and a second mode providing wideband output impedance matching with improved NF and linearity at moderate gain...
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WO/2024/001233A1 |
The present application provides an implementation method for a digital predistortion solution, comprising: by using a unified digital predistortion hardware structure, and by means of software configuration, obtaining an artificial inte...
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WO/2024/006077A1 |
Circuits and methods for an amplifier (particularly LNAs) that achieve wideband output impedance matching and high gain while simultaneously rejecting out-of-band (OOB) harmonic frequencies. Some embodiments allow multiple modes of opera...
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WO/2024/006620A1 |
Various aspects of the present disclosure generally relate to wireless communication. In some aspects, a first node may transmit (510) an indication of a first set of one or more groups, wherein each group of the first set of one or more...
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WO/2024/006097A1 |
Circuits and methods for a radio frequency amplifier, such as an LNA, that include a wideband coupled input impedance matching network. One embodiment includes a first inductor coupled between a first terminal and a first node, the first...
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WO/2023/249771A1 |
A supply voltage based analog predistortion (APD) circuit for a power amplifier is disclosed. In an exemplary aspect, the power amplifier is in a front end module (FEM) of a radio frequency (RF) transceiver. An APD circuit operates withi...
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WO/2023/248631A1 |
A high frequency circuit (1) comprises a power amplifier (11) and a variable load matching circuit (21 or 22) connected to an output end of the power amplifier (11). Under a condition in which a first power class is to be applied, a powe...
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WO/2023/249889A1 |
An analog predistortion (APD) circuit is disclosed. In one aspect, the power amplifier is in a front-end module (FEM) of a radio frequency transceiver. An APD circuit operates within an amplifier chain to normalize the distortion of the ...
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WO/2023/249896A1 |
Systems and methods for providing a protection loop for a power amplifier (PA CELL) are disclosed. In one aspect, an over voltage condition is detected (214, 216) at an output of the power amplifier (PA CELL), and a short circuit is sele...
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WO/2023/250237A1 |
Methods and apparatus for providing amplifier protection for a radio frequency (RF) front-end circuit. An example RF front-end circuit generally includes an amplifier with a gain, a first sensor configured to sense a first power (or volt...
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WO/2023/247597A1 |
Example embodiments describe an amplifier (100) for amplifying a complex input communication signal (109) having an in-phase and quadrature component. The amplifier comprises: i) a modulation circuitry (110) configured to convert the inp...
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WO/2023/249865A1 |
A power amplifier includes a substrate, first and second transistor amplifiers, and at least one matching circuit. Respective output terminals of the first and second transistor amplifiers are coupled to a combining node, and the matchin...
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WO/2023/245617A1 |
A dual-band dual-output ports power amplifier arrangement (100) comprising a first power amplifier (Pm), a second power amplifier (Pa) and an output coupler (120). The output coupler (120) is a dual-band inverse phase coupler such that t...
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WO/2023/246800A1 |
Disclosed in the present application are a method and apparatus for controlling the delay of a digital pre-distortion loop, and an electronic device. The method comprises: acquiring an output power value of a digital pre-distortion loop,...
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WO/2023/244390A1 |
A fast-switching power management integrated circuit (PMIC) is provided. The PMIC is configured to provide an average power tracking (APT) voltage to a power amplifier circuit for amplifying a radio frequency (RF) signal modulated in mul...
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WO/2023/243068A1 |
This feedback amplifier (1) comprises: an amplification transistor (T) with a grounded source terminal; a first feedback circuit (FB1) that provides negative feedback between a gate terminal and a drain terminal of the amplification tran...
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WO/2023/242094A1 |
A method for use with a sound system (called plant in control theory) (125) including a loudspeaker set (120), the method comprising: obtaining input audio samples (rn) and a measured current (mn-d) drawn by the loudspeaker set; generati...
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WO/2023/244118A1 |
The disclosure relates to an improved audio amplifier with a transformer less output stage comprising: an audio input stage (10), a self oscillating full bridge Class D amplifier (20A,20B), an isolated gate drive (2A,2B) power output sta...
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