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Matches 1 - 50 out of 37,321

Document Document Title
WO/2021/089174A1
The invention relates to a method for controlling a driver circuit. The method comprises operating an amplifier for providing an output signal, for example an electronic signal for driving or controlling a load, for example a voltage or ...  
WO/2021/088023A1
Disclosed are an electronic device and a digital chip, wherein the digital chip may be a baseband chip. The digital chip can perform DPD correction on a first digital signal to be output. The digital chip can also output a digital cancel...  
WO/2021/089168A1
A burst mode receiver for a passive optical network includes a high gain circuitry portion having a plurality of cascaded amplifiers. The high gain circuitry portion also includes a plurality of high gain switches. The burst mode receive...  
WO/2021/088201A1
The present application relates to an analog pre-distortion processing circuit and a signal processing device, the analog pre-distortion processing circuit comprises a narrowband spread spectrum module, an analog pre-distortion module an...  
WO/2021/084291A1
Efficiency improvements for multi-stage power amplifiers are described. In one example, a power amplifier includes a driver amplifier formed on a first semiconductor die using a first semiconductor fabrication process, an output amplifie...  
WO/2021/086755A1
Various methods and circuital arrangements for protection of a power amplifier from over voltage are presented. According to one aspect, a protection circuit coupled to a varying supply voltage of the power amplifier controls a biasing c...  
WO/2021/086238A1
There is provided mechanisms for enabling linearization of a non-linear electronic device. A method is performed by a linearizer device. The method comprises receiving an input signal destined to be input to the non-linear electronic dev...  
WO/2021/085780A1
Provided is a method of processing an input signal of a power amplifier in an electronic device. A digital predistortion device is obtained which digitally predistorts an input signal of the power amplifier by using a neural network mode...  
WO/2021/082415A1
Disclosed are an impedance matching circuit and method. The circuit is applied to a power source circuit of an envelope tracking radio frequency power amplifier. An envelope tracking power source is connected to the radio frequency power...  
WO/2021/084536A1
A power amplifier with improved stability, gain, flatness and return loss and reduced the size, which comprises a two-stage power amplifier in balanced cascode topology that consists of a first common-source stage feeding into a first co...  
WO/2021/086105A1
An electronic device for preventing a burnout caused by overcurrent and a method therefor are provided. The electronic device comprises: a power amplifier configured to amplify a transmitted signal; a battery configured to provide a bias...  
WO/2021/081787A1
The present application provides an operational amplifier and a startup circuit for the operational amplifier, having the advantages of simple structure and low power consumption. The operational amplifier comprises multiple stages of am...  
WO/2021/086113A1
Disclosed are an amplifier of a terahertz band, a method for designing same, and a radiator with same. According to one embodiment disclosed herein, the amplifier of a terahertz band comprises: a transistor; an input transmission line co...  
WO/2021/077463A1
The present invention provides a pre-amplification circuit, comprising a first amplifier and a second amplifier serially connected in sequence, the output terminal of the second amplifier being connected to a circuit output terminal, and...  
WO/2021/073612A1
An envelope tracking method and device. The method comprises obtaining a target envelope tracking input current signal (IA) by means of a boost circuit (303), and transmitting the target envelope tracking input current signal (IA) to an ...  
WO/2021/071711A1
Disclosed are various approaches for estimating uncertainty in deep neural networks. A respective tensor normal distribution can be applied to each of a plurality of convolutional kernels of a convolutional neural network, wherein the re...  
WO/2021/069858A1
This application relates to circuitry for monitoring for instability of an amplifier. The amplifier (100) has a first signal path between an amplifier input (IN N ) and an amplifier output (V OUT ) and a feedback path from the output to ...  
WO/2021/069071A1
The invention relates to an electrical circuit in the form of a transimpedance amplifier stage, and to a method for operating this circuit. The invention furthermore relates to a circuit containing at least one signal amplifier that has ...  
WO/2021/069064A1
The disclosure relates to a driver amplifier circuit. The driver amplifier circuit includes a non-linear differential amplifier and a non-linear resistor connected across output terminals of the differential amplifier. The non-linear res...  
WO/2021/064892A1
A Doherty amplifier according to the present invention is provided with: an input terminal; a branching part which is connected to the input terminal; a first input transmission line which has one end thereof connected to the branching p...  
WO/2021/067028A1
Gallium nitride based RF transistor amplifiers include a semiconductor structure having a gallium nitride based channel layer and a gallium nitride based barrier layer thereon, and are configured to operate at a specific direct current d...  
WO/2021/067616A1
A power management integrated circuit (PMIC) can improve the ramp up speed of a boost converter with the inclusion of a controllable switch that may modify the connection of an output capacitor to reduce the ramp time as the output volta...  
WO/2021/061864A1
Multi-level envelope tracking systems with separate DC and AC paths are provided. In certain embodiments, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope trackin...  
WO/2021/056880A1
Disclosed is a radio-frequency front-end architecture, comprising: a power amplifier module integrated duplexer (PAMiD); an antenna; and at least one tunable matching network, wherein the PAMiD comprises a power amplifier, and the at lea...  
WO/2021/042087A3
Embodiments of circuit, apparatus, and method for envelope tracking are disclosed. In an example a circuit for envelope tracking can include a digital pre-distorter configured to receive an input signal representative of a signal to be t...  
WO/2021/058623A1
Apparatus and method for establishing a stable operating point of a H-bridge (Ml HSD, M2 LSD) with a center shunt switch (M5). The stable operating point lets a circuit connected to the H-bridge output (OUTPUT) work in a more ideal condi...  
WO/2021/059381A1
In order to operate a power amplifier for synthesizing a plurality of amplifier circuits with high efficiency, the gate voltages of the field-effect transistors (FETs) of the plurality of amplifier circuits are adjusted according to an i...  
WO/2021/061855A1
Multi-level envelope tracking systems with adjusted voltage steps are provided. In certain embodiments, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope tracking ...  
WO/2021/062141A1
Multi-level envelope trackers with an analog interface are provided herein. In certain embodiments, an envelope tracking system for generating a power amplifier supply voltage for a power amplifier is provided. The envelope tracking syst...  
WO/2021/042088A3
Embodiments of circuit, apparatus, and method for switched envelope tracking are disclosed. In an example, a method for switched envelope tracking can include receiving an input signal representative of an intended transmission. The inpu...  
WO/2021/059161A1
A broadband power amplifier circuit (1) is disclosed for providing load modulation, and includes an active element (4) for receiving an impedance matched signal (5) and for amplifying the impedance matched signal (5) to supply an amplifi...  
WO/2021/057302A1
A digital pre-distortion implementation method and system, a readable storage medium, and a DPD apparatus. Said method comprises the following steps: when a system is powered on, allocating a fixed digital pre-distortion (DPD) function c...  
WO/2021/061851A1
Apparatus and methods for power amplifier bias modulation for low bandwidth envelope tracking are provided herein. In certain embodiments, an envelope tracking system includes a power amplifier that amplifies an RF signal and a low bandw...  
WO/2021/055654A1
An integrated circuit device (100) is provided. In some examples, the integrated circuit device (100) includes an amplifier stage (106) that receives an input signal (102 A) and a control signal (110) and provides an amplified signal (10...  
WO/2021/051232A1
A power amplifier circuit, a transmitter and a network device. The power amplifier circuit comprises N input ends, N power amplifier branches (11, 12, 13, ..., 1N), a composite circuit (20), and an output end (30). The N input ends are r...  
WO/2021/021843A4
A reconfigurable amplifier configured to decrease radio frequency (RF) signal distortion and increase dynamic range is disclosed. The reconfigurable amplifier includes an amplifier having an RF signal input, an RF signal output, and a bi...  
WO/2021/049113A1
Provided are a bias circuit, an amplifier, and a bias voltage control method which can inhibit degradation of high frequency characteristics caused by gate lag during pinch off. A bias circuit (10) according to one embodiment comprises: ...  
WO/2021/046654A1
The present power amplifier linearizing module linearizes operation of a power amplifier and operates in parametrizing mode and operation mode. A processing module executes a feed-forward transfer functions set, which includes at least: ...  
WO/2020/264541A3
A power amplifier output stage includes a first output array group (304A) having a first plurality of semiconductor devices, and a first loading adjustment module (308A) coupled to the first output array group (304A). The first loading a...  
WO/2021/049983A1
A power amplifier arrangement (100) for amplifying an input signal (Pin) to produce an output signal (Pout) is disclosed. The amplifier arrangement (100) comprise an input port (IN) for receiving the input signal; an output transmission ...  
WO/2021/047757A1
An amplification device for amplifying a signal in electro-optical transceivers An amplification device configured for amplifying a signal with a DC signal component is provided, which comprises a coupling filter circuit having an input ...  
WO/2021/045896A1
An amplifier includes a first coil coupled to at least one input node. The amplifier further includes second and third coils. A first terminal of the second coil is coupled to a source terminal of a first transistor, while a second termi...  
WO/2021/046206A1
A system for split-frequency amplification, preferably including: one or more primary-band amplification stages, one or more secondary-band amplification stages, one or more band-splitting filters, and/or one or more signal couplers. An ...  
WO/2021/039037A1
A signal processing device (1) is provided with an offset adjuster (51), an amplitude adjuster (52), and a delay adjuster (53). The offset adjuster (51) adjusts direct current offset by using a first parameter pertaining to the direct cu...  
WO/2021/039279A1
This amplifier is provided with: a P-type transistor and an N-type transistor that are connected in series; an operational amplifier; a transformer; and a variable attenuator. In the operation amplifier, an output terminal is connected t...  
WO/2021/038390A1
The present invention provides a semiconductor device that has an amplifier and that improves the accuracy of the amplifier. This semiconductor device has switches, capacitors, chopping circuits, and the amplifier. The amplifier has a no...  
WO/2021/039256A1
In the present invention, when an operation signal is a burst signal, distortion compensation is performed, by use of a predistortion method, with stability regardless of the burst length. A method control unit 18 sets whether a coeffici...  
WO/2021/037054A1
Provided are a compensation circuit and a chip, a method, an apparatus, a storage medium, and an electronic device, wherein the compensation circuit includes: an analog module (102), including an input node (1022) and an output node (102...  
WO/2021/041479A1
A voltage regulator circuit using predictively precharged voltage rails is generally disclosed. For example, the voltage regulator circuit may include a main switching regulator configured to provide a target voltage, the main switching ...  
WO/2021/031194A1
An apparatus is disclosed for reducing resistor conductivity modulation during amplification. In an example aspect, the apparatus includes a power amplifier circuit comprising a first pair of resistors, a digital-to-analog converter comp...  

Matches 1 - 50 out of 37,321