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Matches 1 - 50 out of 50,604

Document Document Title
WO/2018/161449A1
Disclosed in the present invention is an electronic switch power amplifier circuit, said circuit comprising: an amplifying circuit, a voltage regulator circuit and a power amplifier circuit; the amplifying circuit is electrically connect...  
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/2018/159428A1
Provided is an amplifying circuit in which the settling time of the amplifying operation of an amplifier is short. The amplifying circuit is provided with: a filter circuit; an amplifier; a capacitor connected between the filter circuit ...  
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/2018/160083A1
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/2018/161024A1
An improved Class-D amplifier may include a digital PWM modulator that receives a digital audio signal and that provides a PWM signal as an input to an analog PWM modulator of the Class-D amplifier. A digital PWM modulator may be configu...  
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/2018/154324A1
This application relates to methods and apparatus for operating MEMS sensors, in particular MEMS capacitive sensors (CMEMS) such as a microphones. An amplifier apparatus (300) is arranged to amplify an input signal (VINP) received at a s...  
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/2018/152099A1
Apparatuses for receiving an input signal in a semiconductor device are described. An example apparatus includes: a first amplifier that provides first and second intermediate voltages responsive to first and second input voltages; first...  
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/2018/145368A1
A voltage control method and terminal, for changing the voltage value of an output voltage in order to meet the different demands for linearity and efficiency by power amplifiers in different working scenarios. The method comprises: a te...  
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/2018/146901A1
Conventional high frequency measurement methods have a problem in which variation in high frequency performance when a high frequency signal is applied to an amplifier cannot be accurately ascertained. In one aspect of a high frequency m...  
WO/2018/145758A1
An integrated isolator circuit for isolating receiver and transmitter in a Time-Division Duplex transceiver is disclosed. The integrated isolator circuit comprises a first node, a second node and a third node. The integrated isolator cir...  
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/2018/146949A1
An electric circuit according to an embodiment of the present technology is provided with a circuit of interest and an auxiliary circuit. The circuit of interest includes an output section for outputting a predetermined output power, and...  
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...  
WO/2018/141773A1
A complex current measurement circuit for determining a complex sense current of a guard-sense capacitive sensor operated in loading mode includes a periodic signal voltage source (1), a differential transimpedance amplifier circuit (DTA...  
WO/2018/144212A1
An amplification circuit includes: an input stage including a driver; a transformer that includes a primary winding and a secondary winding, the primary winding being coupled to an output of the driver; and an output stage including: an ...  
WO/2018/145101A1
In one embodiment, an A/V interconnection architecture is provided that includes a TX A/V endpoint that supports native audio and stereo down-mixed audio on separate networks. The TX A/V endpoint outputs native audio over a video network...  
WO/2018/142177A1
Apparatus and methods for a modified Doherty amplifier operating at gigahertz frequencies are described. The combining of signals from a main amplifier (132) and a peaking amplifier (138) occur at a combining node prior to impedance matc...  
WO/2018/142178A1
Apparatus and methods for a modified Doherty amplifier operating at gigahertz frequencies are described. The combining of signals from a main amplifier (132) and a peaking amplifier (138) occur prior to impedance matching of the amplifie...  
WO/2018/142176A1
Apparatus and methods for a modified Doherty amplifier operating at gigahertz frequencies are described. The combining of signals from a main amplifier and a peaking amplifier occur prior to impedance matching of the amplifier's output t...  
WO/2018/140609A1
A power amplifier circuit for broadband data communication over a path in a communication network can reduce or avoid gain compression, provide low distortion amplification performance, and can accommodate a wider input signal amplitude ...  
WO/2018/140843A1
An electromagnetic transmission line wave amplifier includes a transmission line and a parasitic dipole. The transmission line carries an electromagnetic transmission having an electric field, a magnetic field, a forward wave at a first ...  
WO/2018/139807A1
Disclosed are an apparatus and a method for converting an output current of a current buffer into a digital code. According to one embodiment of the present invention, an apparatus for converting an output current of a current buffer int...  
WO/2018/137166A1
A differential circuit, comprising a plurality of electrodes (RX_0 to RX_N) having at least one intermediate electrode (RX_1 to RX_N-1), wherein one intermediate electrode of the at least one intermediate electrode (RX_1 to RX_N-1) is di...  
WO/2018/139399A1
A power amplifier module (10) is provided with: an amplifier circuit (11); a bias circuit (12); a constant-voltage-generating circuit (14); a constant-current-generating circuit (15); a switching unit (16); and a control unit (17) for co...  
WO/2018/137185A1
A power amplification device, a radio remote unit, and a base station, for use in improving the power amplification efficiency. The power amplification device comprises an envelope modulator (201), a main power amplifier (202), and a fir...  
WO/2018/136147A1
A gate drive circuit for generating asymmetric drive voltages comprises a gate drive transformer comprising: a primary winding responsive to a pulse width module (PWM) input signal to generate a bipolar signal having a positive bias volt...  
WO/2018/136237A1
Resistor mismatch may be digitally compensated based on a known resistor mismatch, power supply information, and/or other operating parameters of the amplifier. The digital compensation may be applied to the digital input signal before c...  
WO/2018/134999A1
A control circuit (114) determines a conductive state and a cut-off state for unit cell circuits (100a-100n) by executing control via first gain control terminals (108a-108n) and second gain control terminals (109a-109n). Between a first...  
WO/2018/136682A1
A method may include, in an apparatus comprising a closed loop amplifier and a signal processing block configured to generate an amplifier input signal as a function of an upstream signal received at an input of the signal processing blo...  
WO/2018/131738A1
The present invention relates to a high-output power amplifier and, more specifically, to a high-output power amplifier using a coaxial waveguide spatial coupler. According to the present invention, the high-output power amplifier compri...  
WO/2018/132006A1
A digitally-controlled power amplifier (DPA) includes a radio frequency digital-to-analog converter (RF-DAC) constructed from nonlinearly weighted PA segments, a multiphase RF drive signal generator that drives the PA segments, and overd...  
WO/2018/131110A1
A plurality of transmission lines (3b, 3c) respectively having different characteristic impedances are connected to a transistor (1). A plurality of open stubs (4a, 4b) are connected to the transmission lines (3b, 3c), respectively. The ...  
WO/2018/128937A1
A Class G amplifier system including a processing unit configured to receive an input signal and output a delayed processed input signal, a class G amplifier configured to receive the delayed processed input signal, and a power supply. T...  
WO/2018/127729A1
A source follower for a capacitive sensor device having a sense node and a shield node is provided. The source follower may include a transistor, and a switch array selectively coupling the transistor between the sense node and the shiel...  
WO/2018/128764A1
Certain aspects of the present disclosure generally relate to a multi-output amplifier (400) implemented using a capacitive attenuator (414). For example, the multi-output amplifier (400) generally includes a first capacitive attenuator ...  
WO/2018/128782A1
An integrated front-end module (FEM) includes at least one power amplifier (PA) coupled to an antenna without inclusion of a switching element in a transmit signal path in the FEM between an output of the PA and the antenna. The FEM furt...  
WO/2018/126130A1
A fixed frequency class-D audio amplifier (100) includes the L-C output filter (114) in a high order feedback loop. An audio amplifier integrated circuit (116) includes an output driver (112), an output terminal, a first input terminal, ...  

Matches 1 - 50 out of 50,604