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Matches 1 - 50 out of 52,613

Document Document Title
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/2021/086238A1
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/2021/084536A1
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/2021/084809A1
The present invention eliminates complicated control of voltage levels in an operational amplifier. This operational amplifier comprises a first amplifier circuit and a second amplifier circuit. The first amplifier circuit outputs a curr...  
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/2021/078960A1
The present invention relates to a sigma-delta analogue-to-digital converter. The sigma-delta analogue-to-digital converter has a transconductance stage having a first, second and third connection. A capacitor is parallel-connected to th...  
WO/2021/077594A1
A power amplifier and an electronic device. The power amplifier comprises: a power amplification circuit and a linearity compensation circuit, wherein the linearity compensation circuit is connected between a bias circuit of the power am...  
WO/2021/076278A1
In certain aspects, an amplifier (605) includes a first transistor (415) including a gate, a drain, and a source, wherein the gate of the first transistor (415) is coupled to a first input (412) of the amplifier (605). The amplifier (605...  
WO/2021/074737A1
According to the present invention, an amplifier is formed in a wiring layer. A semiconductor device according to the present invention comprises a second layer on a first layer, with a metal oxide being interposed therebetween. The firs...  
WO/2021/075064A1
This switching module has mounted, on a substrate thereof, a MOSFET and a driver circuit for applying drive voltage to a gate electrode of the MOSFET. In the switching module according to the present invention, the driver circuit is elec...  
WO/2021/069281A1
The present invention relates to an electronic system (1) comprising: • a plurality of sub blocks, each one being required to be supplied with a different power supply output voltage (VDD1, VDD2,..), • a differential amplifier (3) ha...  
WO/2021/015618A3
A variable gain amplifier with an amplifier (A), a current-steering circuit (CSC), a feedback network (FBN), and a gain control circuit (GCC). The current-steering circuit (CSC) divides an output current (Iout) of the amplifier (A) into ...  
WO/2021/070245A1
According to the present invention, an operational amplifier (100) operates with the entire voltage range of supplied first and second voltages (VDD, GND) as an input/output range. An active load (330) is configured with a first conducti...  
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/2021/070246A1
According to the present invention, an operational amplifier (100) operates with the entire voltage range of supplied first and second voltages (VDD, GND) as an input/output range. An active load (330) is configured with a first conducti...  
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/2021/066061A1
This class-D amplifier is equipped with: a gain control unit that amplifies an inputted audio signal in accordance with a compensation gain to generate an input signal Vin; and a pulse width modulator that generates, in a first input ran...  
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/2021/063874A1
A differential delta-sigma-modulator has an integrator (49) including a pair of single-ended amplifiers (46, 47). The differential delta-sigma-modulator comprises a sample clock (50) driving a first switchable capacitor configuration (31...  
WO/2021/065965A1
A pulse width modulator 131P generates, on the basis of an input signal Vin and a first carrier wave C1P, a first pulse Vp having a pulse width that changes in accordance with the input signal Vin, and a pulse width modulator 131N genera...  
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/2021/061884A1
Systems and methods are provided for architectures for a digital class D driver that increase the power efficiency of the class D driver. In particular, systems and methods are provided for a digital class D driver having a feedback anal...  
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/2021/058630A1
Differential switching output stage for audio, power and digital data transmission can cause a common mode error due to asymmetric transition between positive and negative outputs. Systems and methods are provided for common mode error c...  
WO/2021/058617A1
Systems and methods are provided for architectures for an analog feedback class D modulator that increase the power efficiency of the class D modulator. In particular, systems and methods are provided for an analog feedback class D modul...  
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/2021/061714A1
An audio system (100) includes an H-bridge (104). The audio system (100) implements one or more techniques for ensuring a transistor within the H-bridge (104) does not turn on in the event of the detection of a short-circuit on the outpu...  
WO/2021/056301A1
Disclosed are a transconductance amplifier and a related chip. The transconductance amplifier is used for generating output current according to a positive end input voltage (VIP) and a negative end input voltage (VIN). The transconducta...  
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/2021/055900A1
A wireless power transmitting system includes a power amplifier comprising a plurality of measurement points and a power amplifier controller integrated circuit (IC). In some embodiments, the power amplifier controller IC performs synchr...  
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/2021/047475A1
Disclosed is an operational amplifier, comprising a first-level gain circuit, a second-level gain circuit, and a tail current compensation circuit, wherein the first-level gain circuit is connected to the second-level gain circuit; the f...  
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/2021/050401A1
An integrated circuit device (100) is provided. In some examples, the integrated circuit device includes a first amplifier path (112), a second amplifier path (114) coupled in parallel with the first amplifier path (112), a matching netw...  
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/2021/046649A1
A load independent inverter comprises a switched mode zero-voltage switching (ZVS) amplifier. The switched mode ZVS amplifier comprising: a pair of circuits comprises: at least a transistor and at least a capacitor arranged in parallel; ...  
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/2021/044081A1
According to an example aspect of the present invention, there is provided an audio amplifier for use with a limited power source, the audio amplifier having: a power input terminal, a signal input terminal, a first DC to DC converter ha...  
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...  

Matches 1 - 50 out of 52,613