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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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 ...
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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...
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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...
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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...
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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...
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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...
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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...
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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...
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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: ...
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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...
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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: ...
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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...
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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 ...
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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; ...
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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...
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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...
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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...
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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...
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WO/2021/035707A1 |
A low-dropout regulator which is applied to a power supply system, comprising: a voltage source, a ground terminal, an error amplifier circuit (320), a control circuit (350), a power tube circuit (330) and an output node. The power tube ...
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WO/2021/038349A1 |
The present invention provides a novel comparison circuit, a novel amplifier circuit, a novel battery control circuit, a novel battery protection circuit, a power storage device, a semiconductor device, an electrical apparatus, and the l...
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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...
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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...
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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 ...
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WO/2021/035173A1 |
Implementations provide a receiver circuit that includes: an alternate current (AC)- coupling network to filter an input signal, the AC-coupling network including a first RC filter connected between a first input node and a first common ...
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WO/2021/034536A1 |
A wideband envelope modulator comprises a direct current (DC)-to-DC switching converter connected in series with a linear amplitude modulator (LAM). The DC-DC switching converter includes a pulse-width modulator that generates a PWM sign...
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WO/2021/032837A1 |
A current to digital converter circuit has an integrator amplifier (IAmp) with an input (12) adapted to receive a current signal (Ip) and an output (13) adapted to provide a voltage signal (Vout) as a function of an integration of the cu...
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WO/2021/034878A1 |
An envelope tracking (ET) power amplifier apparatus is provided. The multi-mode power amplifier apparatus includes a pair of power amplifiers configured to amplify a radio frequency (RF) signal(s) and an output circuit that outputs the a...
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WO/2021/030521A1 |
A multi-amplifier envelope tracking (ET) apparatus is provided. The multi- amplifier ET apparatus includes an ET integrated circuit (ETIC). The ETIC includes a first voltage circuit that generates the first ET voltage based on a first su...
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WO/2021/030443A1 |
An envelope stacking power amplifier system reduces current for a given output power level without sacrificing the ability to support large voltage swings at saturation and therefore increases efficiency at the maximum linear operating p...
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WO/2021/026860A1 |
An amplifier circuit (100), a chip, and an electronic apparatus. The amplifier circuit generates a positive output signal (VOP) and a negative output signal (VON) according to a positive input signal (VIP) and a negative input signal (VI...
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WO/2021/029974A1 |
A wideband polar modulation transmitter includes a power amplifier (PA), a PA driver, a dynamic power supply (DPS), a PA driver VH controller, and a phase modulator. The phase modulator modulates a radio frequency (RF) carrier by an inpu...
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WO/2021/030641A1 |
Methods and apparatus for implementing a power efficient amplifier device through the use of a main (primary) and auxiliary (secondary) power amplifier are described. The primary and secondary amplifiers operate as current sources provid...
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WO/2021/026052A1 |
A circuit includes an analog-to-digital converter (ADC). The circuit also includes an analog front end (AFE, 310) having an AFE input and an AFE output. The AFE output is coupled the ADC's input. The AFE includes a programmable gain ampl...
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WO/2021/024708A1 |
Provided is an oscillation control circuit with which it is possible to obtain an oscillation output that accurately holds a maximum value of a desired oscillation output amplitude and in which fluctuations due to temperature changes or ...
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WO/2021/026539A1 |
A circuit including an amplifier having an input and an output; and a feedback path comprising a transmission line electrically coupled or electrically connected to the output and the input. A low noise amplifier including the circuit wh...
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WO/2021/018986A1 |
An optical light sensing device includes a detector operable to detect a light wave. The optical light sensing device also includes an integration circuit that includes an operational amplifier that is operable to reduce or cancel dark c...
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WO/2021/016708A1 |
A signal processing circuit that achieves functionality similar to that of a switched capacitor circuit without the necessity a clock. The circuit compensates for finite open loop gain and for offset voltages in the components, allowing ...
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WO/2021/019542A1 |
A switching circuit comprises a main switch element having a gate as a control input; and a ring oscillator connected as a driver circuit to the gate to drive the main switch via the gate. The basic circuit is used to build various compo...
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WO/2021/021934A1 |
A method for power amplification uses circuitry including a main amplifier and an auxiliary amplifier that are constructed and operate such that an input is applied to the main and auxiliary amplifiers via an input network. At low power ...
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WO/2021/021843A1 |
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...
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WO/2021/016350A1 |
A multi-mode power management apparatus is provided. In embodiments disclosed herein, the multi-mode power management apparatus can be configured to operate in different power management modes across a wide range of modulation bandwidth ...
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WO/2021/015889A1 |
Embodiments are described herein for power generation systems and methods that use quadrature splitters and combiners to facilitate plasma stability and control. For one embodiment, a quadrature splitter receives an input signal and gene...
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WO/2021/015618A2 |
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 ...
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