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WO/2024/046581A1 |
In various embodiments of the present disclosure, provided is a system to perform reduced complexity frequency selective linearization. In an embodiment, multistage digital predistortion (DPD) can linearize different parts of the spectru...
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WO/2024/044049A1 |
Various methods and circuital arrangements for protection of a power amplifier (110) from over temperature are presented. According to one aspect, a protection circuit coupled to a temperature sensor (338) controls a biasing current or v...
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WO/2024/041267A1 |
The present invention discloses an audio power amplifier circuit, and a duty ratio modulation circuit and a noise suppression circuit thereof. The audio power amplifier circuit comprises an integral amplification module and a high-freque...
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WO/2024/043266A1 |
A data acquisition circuit according to the present invention has a plurality of signal processing units which each have a first analog chopper circuit, an amplifier, a second analog chopper circuit, and an analog filter that are connect...
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WO/2024/038635A1 |
This amplifier with a differential FR switch function comprises: an input matching circuit; N (where N is an integer of two or greater) number of differential amplification circuits connected to the input matching circuit; and N number o...
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WO/2024/039261A1 |
A single-supply apparatus for signal transmission comprises two operational amplifiers (OA), two transistors, a resistor, a feedback circuit (FC), and a current setter. An output of the first OA is connected to a first electrode of the f...
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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/2024/039978A1 |
Techniques and apparatus for reducing sensitivity (e.g., less gain variation due to parasitic capacitance) in dynamic amplifiers. One example dynamic amplifier generally includes a pair of differential input transistors, a pair of cross-...
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WO/2024/033600A1 |
Switching amplifier circuitry for driving an inductive load, the switching amplifier circuitry 5 comprising modulator circuitry and output stage circuitry, wherein the switching amplifier circuitry is configured to: while the modulator c...
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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/2024/036025A2 |
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/2024/034682A1 |
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/2024/029041A1 |
The present disclosure relates to a power amplifier and a high-frequency module, and has the objective to provide a power amplifier with easy broadband impedance matching and a high-frequency module using said amplifier. The power amplif...
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WO/2024/028901A1 |
A bias block (10,200) for providing a bias voltage (161,233) includes a transistor (120,230) having a control terminal, a first current terminal and a second current terminal. A voltage level at the control terminal determines a magnitud...
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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/2024/028504A1 |
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/2024/029113A1 |
The high-frequency power supply device according to the present invention has a control unit that controls the output level of a synthetic output obtained by synthesizing the powers of the amplifier outputs of multistage power amplifiers...
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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/2024/021831A1 |
Provided in the embodiments of the present application is a signal transmission circuit. The signal transmission circuit comprises a positive input end; a negative input end; and an amplification unit which is connected to the positive i...
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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/2024/025976A1 |
Systems and methods are disclosed for improving common mode transient immunity in silicon digital isolators using capacitive barrier for galvanic isolation. The systems include transmitters and receivers that include differential amplifi...
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WO/2024/021212A1 |
A novel differential amplifier having a feedforward bias correction circuit, and equipment. A common-mode voltage output of the differential amplifier is dynamically adjusted by means of the bias correction circuit according to an input ...
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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/2024/025498A1 |
The invention discloses a circuit that reduces the effect of settling time-related errors by accelerating the settling time and reduces the circuit noise to a negligible level, characterized by comprising amplifier (1) wherein reference ...
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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/2024/014781A1 |
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/2024/012453A1 |
The present invention relates to a driving circuit, a display driving chip, a display device, and an electronic device. The driving circuit comprises a first-stage circuit, a second-stage circuit, and an auxiliary circuit; the first-stag...
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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/2024/011010A1 |
A battery management system configured to couple to at least one battery module, the battery management system includes a contact configured to couple between the at least one battery module and a machine, a sensor configured to sense an...
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WO/2024/007728A1 |
A matching circuit (20) and a power amplification circuit. The matching circuit (20) comprises a first matching structure (21), a second matching structure (22), and a third matching structure (23) sequentially connected in series to a p...
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WO/2024/001458A1 |
The present application discloses a radio frequency front-end module and an electronic device. The radio frequency front-end module comprises a first balun, a differential amplification circuit connected to the first balun, and a bias ci...
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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/2024/005918A1 |
A distributed driver for an optic signal generator comprising amplifier cells having an amplifier cell input configured to receive the input signal and amplifiers configured to amplify the received signal to create an amplified signal, a...
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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/2024/006848A1 |
An integrated current sensing amplifier with offset cancellation implemented in GaN technology. The current sensing amplifier senses the current flowing through a low side power FET or a high side power FET of a half bridge circuit. The ...
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WO/2024/001043A1 |
A high-power repetition frequency solid-state switch under combined control of optical amplification and electric amplification, and a method. The switch comprises an optical pulse unit, an optical amplification device, an optical coupli...
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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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