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WO/2021/204366A1 |
Disclosed is a method comprising selecting a mathematical model associated with a nonlinear component, determining an error signal associated with the nonlinear component, wherein the error signal indicates a difference between a first s...
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WO/2021/205614A1 |
A power supply modulator (1) is provided with: a first switching element (11) which has a first terminal and a second terminal, wherein a first voltage is applied to the first terminal, and the second terminal is connected to an output t...
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WO/2021/206176A1 |
This power-amplifying device realizes wide bandwidth operation of a high-frequency power-amplifying circuit. A power-amplifying device (100A) includes: a power-amplifying circuit (1) that amplifies a high-frequency input signal; a first ...
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WO/2021/206482A1 |
According to one or more embodiments of the disclosure, an electronic device may include a power amplifier, a voltage generator, an antenna, and a communication processor. The CP determines whether an output waveform of the transmission ...
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WO/2021/200963A1 |
This amplification device comprises a base substrate, an amplification element, and a matching circuit board. The amplification element is mounted on the base substrate. The matching circuit board is mounted on the base substrate and has...
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WO/2021/197567A1 |
A distributed amplifier (302) comprises an amplifier circuit (401) comprising an input line for coupling to an AC voltage source, an output line for coupling to a load, and a plurality of gain devices between the input line and the outpu...
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WO/2021/202074A1 |
A multi-level radio frequency (RF) integrated circuit component includes an upper level including at least one inductor, and a lower level including at least one conductive element that provides electrical connection to the at least one ...
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WO/2021/202358A1 |
RF transistor amplifiers include a Group III nitride-based RF transistor amplifier die that includes a semiconductor layer structure, a conductive source via that is connected to a source region of the Group III nitride-based RF transist...
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WO/2021/199431A1 |
A high-frequency amplifier (1) is provided with: a source ground transistor (12) which includes gate fingers (14-1) to (14-8), drain fingers (15-1) to (15-4), and source fingers (16-1) to (16-5), which amplifies signals to be amplified, ...
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WO/2021/202076A1 |
A radio frequency (RF) power amplifier device package includes a substrate and a first die attached to the substrate at a bottom surface of the first die. The first die includes top gate or drain contacts on a top surface of the first di...
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WO/2021/194712A1 |
Various implementations include systems for amplifying input signals. In particular implementations, a system includes a common mode voltage controller configured to receive an input signal and output a pair of adjusted signals; a modula...
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WO/2021/195061A1 |
A power amplifier provides reduction of click and pop in audio applications. The power amplifier includes a first amplifier and an auxiliary amplifier. The auxiliary amplifier is used to ramp the power amplifier output from ground to an ...
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WO/2021/194773A1 |
An operational amplifier comprises a front stage and an output stage. The front stage comprises a first input transistor, a second input transistor, a first node, a second node, and a first current mirror. A first voltage based on a firs...
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WO/2021/192204A1 |
An amplitude/phase control device (10) is configured to comprise: a signal splitting unit (12) that splits a transmission signal into a first signal and a second signal and that outputs each of the first signal and the second signal to a...
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WO/2021/194402A1 |
Methods and apparatus are provided. In an example aspect, an amplifier circuit is provided. The amplifier comprises a first amplifier configured to receive a first signal and to provide a first amplified signal to a first port of a first...
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WO/2021/192124A1 |
When a frequency of n-th intermodulation distortion (n≥2) caused by a combination of a plurality of interfering waves detected by a background tuner (12) is within an occupied frequency band of a desired wave and an n-th intermodulatio...
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WO/2021/194397A1 |
Methods and apparatus are provided. In an example aspect, a method of operating an amplifier circuit is provided. The amplifier circuit comprises a first amplifier configured to receive a first signal, a balanced amplifier comprising sec...
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WO/2021/194883A1 |
A playback device including a processor that executes program instructions such that the playback device is configured to receive first audio data representing audio content, generate and output second audio data based on the first audio...
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WO/2021/187287A1 |
This class D amplifier comprises: a selection unit that selects one carrier signal as a comparison signal from among a plurality of carrier signals including a first carrier signal having an amplitude nonlinearly changing over time durin...
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WO/2021/186653A1 |
There has been a problem wherein if a current-voltage conversion device is used at low temperatures, the frequency band at which minute current can be measured is limited. Also, the stray capacitance of a coaxial cable for taking the out...
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WO/2021/184701A1 |
An over-voltage protection and gain boot circuit of a power amplifier. The circuit comprises a power amplifier tube (101) and a diode (102), wherein the diode (102) is reversely connected to a gate of the power amplifier tube (101); a ne...
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WO/2021/187288A1 |
A class-D amplifier that includes a generation unit that generates a carrier signal that has an amplitude that varies nonlinearly relative to the passage of time during a single period, a comparison unit that compares the carrier signal ...
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WO/2021/186651A1 |
If operated at very low temperatures, FETs used by conventional current-voltage conversion devices have insufficient current-voltage conversion efficiency and have a narrow operating frequency range, making it difficult to achieve curren...
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WO/2021/187139A1 |
The present invention improves the efficiency η of an acoustic device as a whole including an amplifier, over an entire frequency band including a lowest resonance frequency F0. An acoustic device 10 comprises a class-D amplifier 1 and ...
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WO/2021/186652A1 |
If operated at very low temperatures, FETs used by conventional current-voltage conversion devices have insufficient current-voltage conversion efficiency, making it difficult to achieve current measurement of a good sensitivity. There h...
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WO/2021/182067A1 |
A bias circuit (10) comprising: a switching element (11) having a first terminal (11a) and a second terminal (11b), the first terminal (11a) being electrically connected to a gate terminal (1a) of an amplification element (1) that is a t...
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WO/2021/179079A1 |
An apparatus and method for using the known phenomena of quantum gate tunneling in semiconductor transistors to define the DC state of a charge-coupled amplifier is described. A first stage in which the tunneling current is bipolar (by p...
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WO/2021/183202A1 |
Electronic devices that include a continuous time linear equalizer, CTLE, are provided. An example of a CTLE includes a first inverter (402); a second inverter (404) having an input to receive an input signal (IN); a capacitor (408) coup...
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WO/2021/183811A1 |
This disclosure provides systems, devices, apparatus and methods, including computer programs encoded on storage media, for a DPD training procedure. A base station may transmit, for a plurality of iterations, a signal to at least one UE...
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WO/2021/181751A1 |
The present invention suppresses a current that flows to a transistor of a final-stage amplifier. A power amplifier circuit (10) is provided with a drive-stage amplifier (1), a final-stage amplifier (3), a power terminal (T3), a first vo...
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WO/2021/181492A1 |
A bias circuit (10) that comprises: a switching element (11) that has a first terminal (11a) and a second terminal (11b), the first terminal (11a) being electrically connected to a gate terminal (1a) of an amplification element (1) that ...
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WO/2021/183427A1 |
A current sense loop (100) includes an attenuator circuit (104), which has an embedded input chopper circuit (110), and an amplifier circuit (106), which has an output chopper circuit (112). The embedded input chopper (110) has a first c...
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WO/2021/178198A1 |
A system includes a transimpedance amplifier, disposed on a chip, having a front-end section and a back-end section; an on-chip linear regulator, on the chip, arranged to power the front-end section; and an off-chip switching regulator, ...
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WO/2021/176194A1 |
An amplifier (300) comprising: a first signal path comprising first amplifier circuitry (105A) configured to receive a first signal (RF1) with a frequency and a variable phase and amplitude at the frequency; a second signal path comprisi...
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WO/2021/174766A1 |
A buffer circuit for buffering a photosensitive signal, and an image sensor comprising same. The buffer circuit comprises: an amplifying circuit, a first switch element, and a resistive element. A control end of the amplifying circuit is...
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WO/2021/178073A1 |
A differential signal input buffer (200) is disclosed. The differential signal input buffer (200) may receive a differential signal that includes a first signal and a second signal and may be divided into a first section (260) and a seco...
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WO/2021/172630A1 |
The present invention relates to a signal processing device and an image display device including same. A signal processing device according to an embodiment of the present invention comprises: an amplifier for performing amplification o...
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WO/2021/173047A1 |
Methods and apparatus are provided. In an example aspect, an amplifier protection circuit is provided. The amplifier protection circuit comprises an input for receiving a signal from a first amplifier, and an isolation circuit between th...
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WO/2021/173855A2 |
A bandwidth enhanced amplifier for high frequency CML To CMOS conversion is disclosed. In some implementations, an improved CML to CMOS converter includes a differential amplifier having a first and a second input transistors, and a firs...
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WO/2021/169240A1 |
An amplifier and an amplification method. The amplifier comprises an input circuit (101), an amplification circuit (102), and at least two feedback circuits (103a-103n); the input circuit (101) is connected to the input end of the amplif...
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WO/2021/169997A1 |
The present application discloses a digital pre-distortion (DPD) circuit, a DPD coefficient acquisition method and a related device. Said circuit comprises: a DPD module, a power amplifier, a signal recovery circuit and a band-limited DP...
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WO/2021/165213A1 |
According to one aspect, what is proposed is an integrated circuit comprising a radiofrequency amplifier having: - at least two amplifier stages (DS, PS), - an impedance matching device (DAI) between two amplifier stages (DS, PS) of the ...
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WO/2021/168385A1 |
An embodiment of the present disclosure relates to a method of controlling a power amplifier (PA). The PA can comprise a main PA path and an auxiliary PA path. The auxiliary PA path can have a plurality of turn-on settings. The method ca...
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WO/2021/167508A1 |
A feedforward amplifier (40) comprises a power amplifier (13) that generates an amplified signal (Sa), an error correcting circuitry (21) that generates a first error signal (Sie) and a second error signal (S2e) based on an error in the ...
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WO/2021/166408A1 |
A Digital Power- Amplifier (DPA) system includes a power amplifier (PA) circuit having control inputs and an output for generating output signals, and an adaptive control circuit that comprises an input interface, an output interface, a ...
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WO/2021/167155A1 |
The present invention relates to a small broadband amplifier circuit. The amplifier circuit according to the present invention comprises: a first amplification stage which includes a first transistor and a second transistor that form a d...
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WO/2021/165210A1 |
The invention relates to an integrated circuit having a power amplifier (PA) for providing a signal in a fundamental frequency band, an antenna (ANT) and an adaptation and filtering network (MFN), comprising: - a first section (SCT1), a ...
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WO/2021/165212A1 |
According to one aspect, what is proposed is an integrated circuit comprising a power amplifier having: • a succession of at least two amplifier stages (DS, PS) comprising a first amplifier stage (DS) that is configured to receive a ra...
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WO/2021/165211A1 |
The invention relates to an integrated circuit comprising a power amplifier (PA), an antenna (ANT) and an adaptation and filtering network (MFN) having a DC power stage (DCFD) on an output node of the power amplifier (PA), a first sectio...
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WO/2021/159177A1 |
A power amplifier or other circuit with power transistors is disclosed, which includes structure for a thermal sensor. A metal structure is disposed proximate to heat generating transistors. The metal structure may be disposed between tw...
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