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Matches 1 - 50 out of 36,000

Document Document Title
WO/2018/191119A2
An amplifier may include a final output stage switchable among a plurality of modes comprising a mode which is enabled by coupling an output driver to an output of the final output stage and a preconditioning circuit coupled to the outpu...  
WO/2018/187245A1
Apparatus and methods for bias switching of power amplifiers are provided herein. In certain configurations, a power amplifier system includes a power amplifier that provides amplification to a radio frequency (RF) signal, a power manage...  
WO/2018/186776A1
A power amplifier arrangement (200) for amplifying an input signal to produce an output signal comprises a plurality N of amplifier sections (212, 213), a first input transmission line (221) comprising multiple segments and a first outpu...  
WO/2018/184462A1
Disclosed in the present invention is a power control circuit, comprising: a voltage-current converter and a programmable current amplifier; the voltage-current converter is configured to detect an inputted output power control signal, a...  
WO/2018/186854A1
Various communication devices may benefit from the appropriate use of modeling techniques. For example, devices that include components that may be driven into non-linear ranges of operation may benefit from low complexity non-linear mod...  
WO/2018/187656A1
In accordance with embodiments of the present disclosure, a system may include a playback path and a control circuit. The playback path may have a playback input for receiving an input signal and configured to generate at a playback path...  
WO/2018/185532A1
A method and a transmitter arrangement for cancelling cross talk and correcting power amplifier (PA) distortion for a transmitter branch of a multiple-input multiple - output (MIMO) configuration having multiple branches. The method comp...  
WO/2018/187248A1
Systems, methods and apparatus for practical realization of an integrated circuit comprising a stack of transistors operating as an RF amplifier are described. As stack height is increased, capacitance values of gate capacitors used to p...  
WO/2018/179086A1
The present invention is provided with: a first semiconductor chip forming a field effect transistor that has a gate terminal, a drain terminal, and a source terminal connected to a ground terminal; a second semiconductor chip having an ...  
WO/2018/176190A1
The present application relates to the field of power amplifiers. Disclosed is a digital power amplifier. The digital power amplifier comprises a first DSM, a second DSM, a first PWM, a second PWM, a low-pass filter, a digital up-convert...  
WO/2018/179087A1
A diode linearizer according to the present invention is configured such that linearizer core parts are loaded to an RF signal path in parallel via a capacitor between the ground and the RF signal path. Therefore, the diode linearizer do...  
WO/2018/182508A1
An apparatus for optimizing the bias setting of a RF predistortion linearizer for a power amplifier to operate across different frequency channels is provided. The apparatus may include a radio frequency power amplifier. The apparatus ma...  
WO/2018/183189A1
Systems and methods for reducing variability in the output impedance of an integrated switch-mode power amplifier (PA) split the output impedance between passive resistor, which may be on-chip, and a MOSFET switch of the amplifier. The P...  
WO/2018/176436A1
Provided in the present application are a predistortion method and device. The predistortion method comprises: sending a first sequence, and storing the sent first sequence; receiving a feedback second sequence, the second sequence being...  
WO/2018/182778A1
Systems, methods, and circuitries are provided for generating a power amplifier supply voltage based on a target envelope signal for a radio frequency (RF) transmit signal. An envelope tracking system includes a first selector circuitry ...  
WO/2018/182880A1
An envelope tracking system (100) for controlling a power amplifier supply voltage includes envelope circuitry (150) and a feed forward digital to analog converter (DAC) circuitry (160). The envelope circuitry (150) is configured to gene...  
WO/2018/175033A1
An apparatus is provided which comprises: a low-side switch; at least two high-side switches coupled to the low-side switch; a supply boost circuitry coupled to one of the at least two high-side switches; and a high-side switch selection...  
WO/2018/173201A1
This current amplifier is provided with: a first transistor (2a), a second transistor (2b), a third transistor (3a), and a fourth transistor (3b), all of which have respective source terminals being grounded; a first feedback circuit (4a...  
WO/2018/173407A1
In this amplification device, output signals of a first amplifier (6a) provided on a first branch and output signals of a second amplifier (6b) provided on a second branch are synthesized by a synthesizing unit (7), and the synthesized s...  
WO/2018/175530A1
A self-decoupled RF coil and method for adjusting the same is disclosed. The RF coil is an array of elements including at least one loop. Electromagnetic coupling between elements in the array causes an induced current in the at least on...  
WO/2018/172004A1
The invention relates, in several clear embodiments, to an inductive component (1a) and a method for producing such an inductive component. The inductive component (1a) comprises a busbar (4a) and at least one magnetic core (6a), which i...  
WO/2018/167449A1
A capacitive trans-impedance amplifier comprising a voltage amplifier having an inverting input terminal for connection to an input current source. A feed-back capacitor is coupled between the inverting input terminal and the output term...  
WO/2018/167450A1
The use of a capacitor (22) to serve as the principal impedance in a negative feed-back loop in a voltage amplifier component (21) of a trans-impedance amplifier and actively controlling the amount of charge accumulated within the capaci...  
WO/2018/161708A1
Provided are an envelope tracking method and a mobile terminal. The envelope tracking method comprises: acquiring at least two coordinates of a point of an instantaneous radio frequency envelope respectively mapped to the same power supp...  
WO/2018/164751A1
Systems, methods and apparatus for efficient power control of an RF amplifier for amplification of a constant envelope RF signal are described. A reduction in a size of a pass device of an LDO regulator is obtained by removing the pass d...  
WO/2018/164866A1
A model identification system [FIG. 8A, 800] includes an analog to digital converter (ADC) [FIG. 8A, 210]. The ADC includes a conversion circuit [FIG. 8A, 212] configured to receive a first analog signal [FIG. 8A, 208] and generate a fir...  
WO/2018/162746A1
Circuity for improving linearity and efficiency in mobile device power amplification is provided. The circuitry provides multi-level envelope tracking to divide the input power range of the RF input signal into several discrete steps and...  
WO/2018/165337A1
A non-ferromagnetic electronic circulator device and system is described. Such passive electronic circulator devices may include a plurality of ports that include a discrete arrangement of resistors, capacitors and inductors that form a ...  
WO/2018/157462A1
A digitized predistortion linearizer, comprising a processing circuit which is used to contain signals of diodes in parallel and diodes in series, and a processor which is used for controlling and regulating the input power of the diodes...  
WO/2018/160771A2
Temperature compensation circuits and methods for adjusting one or more circuit parameters of a power amplifier (PA) to maintain approximately constant Gain versus time during pulsed operation sufficient to substantially offset self-heat...  
WO/2018/158556A1
This application relates to amplifier circuits for amplifying an audio signal. An amplifier circuit (100) has a voltage regulator (201) for outputting a supply voltage to an amplifier (104). An output capacitor (103) coupled to an output...  
WO/2018/160083A1
An apparatus for quantized linear amplification with nonlinear amplifiers that performs a linear amplification of variable-envelope single carrier (SC) or multi-carrier (MC) bandpass signals, based on sampled and quantized versions of it...  
WO/2018/159021A1
This distortion compensation device is provided with a first predistorter that compensates for distortion in an amplifier, and a second predistorter that compensates for the distortion in the amplifier and updates a distortion compensati...  
WO/2018/153818A1
The invention describes an amplifier circuit for providing an output of at least 100 W, preferably of at least 200 W and most preferably of at least 250 W comprising a field effect transistor (111, 113). A drain of the field effect trans...  
WO/2018/156303A1
An envelope tracking system includes an instantaneous amplitude circuitry, an instantaneous frequency circuitry, and a two-dimensional (2D) bias voltage selection circuitry. The instantaneous amplitude circuitry is configured to determin...  
WO/2018/154659A1
The present invention is provided with: a first power supply 3 which outputs a voltage required for a first gate bias voltage for turning a power amplifier 2 on; a second power supply 4 which outputs a voltage required for a second gate ...  
WO/2018/155217A1
Provided is a sensor output amplification circuit (100) of which the amplification characteristics are provided with a temperature characteristic to increase (or decrease) the amplification factor in a desired temperature range. The sens...  
WO/2018/156932A1
Disclosed are methods, systems, devices, apparatus, media, design structures, and other implementations, including a method for digital predistortion of multiband signals that includes receiving a plurality of input signals respectively ...  
WO/2018/154647A1
This high frequency amplifier is configured such that, when a potential difference V1 between a source terminal of an E-type FET (11) and a source terminal of a D-type FET (12) becomes larger than a threshold voltage Vth, a protection ci...  
WO/2018/150454A1
A feed-forward amplifier comprises a phase shifter (19) for adjusting the phase of another modulated transmission signal distributed by a directional distributor (12), and a directional combiner (21) for combining the modulated transmiss...  
WO/2018/151437A1
The purpose of the present invention is to provide a low-noise amplifier equipped with notch filtering, wherein, in the low-noise amplifier comprising a degeneration inductor, a resonant frequency of the inductor and a notch filter frequ...  
WO/2018/151020A1
A high-frequency amplifier (10) is provided with: a carrier amplifier (CA) which amplifies a first signal; a peak amplifier (PA) which amplifies a second signal; a first transmission line (L1) which is connected to between an output term...  
WO/2018/148921A1
A correlated double sampling integrating circuit, comprising: a sample-and-hold module (101), an energy storage unit (103), and a feedback module (102). The sample-and-hold module (101) is used to perform a sample-and-hold operation on d...  
WO/2018/148822A1
A digital predistorter comprising a first predistorter for generating out-of-band and inter- band distortion components for compensating for the static nonlinearity of a nonlinear element, and a second predistorter cascaded with the firs...  
WO/2018/148347A1
A boosted amplifier system may include a boost stage configured to boost an input voltage of the boost stage to an output voltage greater than the input voltage and an amplifier stage powered by the output voltage of the charge pump and ...  
WO/2018/146741A1
A transmitter provided with: a plurality of transmission circuits that process signals within the same frequency band; and a feedback circuit that feeds back transmission amplification signals outputted from the respective plurality of t...  
WO/2018/146745A1
This power amplification circuit is provided with: a band division unit (11) which generates N band signals (X1-XN) from a transmission signal (BS); N distortion compensation units (121-12N) which generate N distortion compensation signa...  
WO/2018/147598A1
A power amplifier may comprise: an element for amplifying an electrical signal received through an input terminal, and outputting the amplified electrical signal through an output terminal; a first impedance adjustment circuit connected ...  
WO/2018/148344A1
A system may include a charge pump configured to boost an input voltage of the charge pump to an output voltage greater than the input voltage, a current mode control loop for current mode control of a power amplifier powered by the outp...  
WO/2018/146850A1
The present invention is provided with: an amplifier that amplifies a signal that has a fundamental frequency within a prescribed frequency band; an input harmonic processing circuit that is connected to the input side of the amplifier a...  

Matches 1 - 50 out of 36,000