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Patent # Description
US-9,948,247 RF amplifier
An RF amplifier comprising an input-transistor having an input-transistor-base terminal, an input-transistor-collector terminal and an input-transistor-emitter...
US-9,948,246 Impedance flattening network for high efficiency wideband doherty power amplifier
A wideband power amplifier includes a set of amplifiers connected in parallel to amplify signals from input ports of the amplifiers, a matching network...
US-9,948,245 Amplifying stage working point determination
An amplifier circuit including an amplifying stage and a predistortion stage is disclosed. The amplifier circuit outputs an output signal X.sub.o. The...
US-9,948,244 Amplifier with adjustable gain
An amplifier with adjustable gain including a plurality of differential amplifiers and an output stage circuit is provided. Each of the differential amplifiers...
US-9,948,243 Reconfigurable load modulation amplifier
A reconfigurable load modulation amplifier having a first power amplifier (PA) configured to be supplied by a first drain voltage and a second PA coupled in...
US-9,948,242 Selectable current limiter circuit
A selectable current limiter circuit to limit the current an amplifier with a load. The limiter circuit limits the current of an amplifier by comparing a...
US-9,948,241 Apparatus and methods for reducing inductor ringing of a voltage converter
Apparatus and methods for reducing inductor ringing of a voltage converter are provided. In certain configurations, a voltage converter includes an inductor...
US-9,948,240 Dual-output asynchronous power converter circuitry
Dual-output power converter circuitry includes an input node, a first output node, a second output node, a number of capacitive elements, and a number of...
US-9,948,239 Configurable mixer
A method and apparatus are disclosed for a configurable mixer capable of operating in a linear, a legacy, and a low-power mode. In the linear mode, the...
US-9,948,238 Harmonic mixer having two transistors driven complimentarily
A harmonic mixer that suppresses the degradation of the conversion efficiency is disclosed. That harmonic mixer includes an input transmission line, an output...
US-9,948,237 Apparatus and method for filtering radio frequency signals of transceiver integrated circuits
Devices and methods are disclosed for generating, filtering, and amplifying signals that are sent and received using SOCs. These improved methods and devices...
US-9,948,236 Resonator having distributed transconductance elements
A method includes forming a resonator comprising a plurality of switched impedances spatially distributed within the resonator, selecting a resonant frequency...
US-9,948,235 Resonator having distributed transconductance elements
A method includes forming a resonator comprising a plurality of switched impedances spatially distributed within the resonator, selecting a resonant frequency...
US-9,948,234 Spectrum shaping voltage to current converter
A voltage controlled oscillator (VCO) is disclosed. The VCO includes an amplifier that receives a control signal and a feedback signal and generates an...
US-9,948,233 Distributed power harvesting systems using DC power sources
A photovoltaic panel with multiple photovoltaic sub-strings including serially-connected photovoltaic cells and having direct current (DC) outputs adapted for...
US-9,948,232 Method for fabricating flexible solar panel module
A flexible solar panel module is provided having a plurality of non-flexible solar panels, a plurality of non-flexible covers and a flexible back sheet. Each of...
US-9,948,231 Method and apparatus for controlling vibration intensity according to situation awareness in electronic device
A method of controlling vibration is provided. The method includes determining whether the electronic device is located on a flat surface if a vibration event...
US-9,948,230 Device for controlling a motor vehicle alternator, and corresponding alternator
The invention relates to a device for controlling an alternator of the type that controls a DC voltage (B+A) generated by the alternator (11) according to a...
US-9,948,229 Electric vehicle
An electric vehicle includes: a first inverter circuit; a second inverter circuit; an inverter control device that outputs first switching signals to the first...
US-9,948,228 Motor driving method, battery pack and semiconductor device
The present invention provides a motor driving method, a battery pack, and a semiconductor device capable of variable-controlling a bus voltage from a battery...
US-9,948,227 Divided phase AC synchronous motor controller
A circuit for a motor comprises at least two phase windings forming one half of motor phase windings of the circuit and at least two other phase windings...
US-9,948,226 Apparatus for driving voice coil actuator of camera and method thereof
An apparatus for driving a voice coil actuator of a camera and a method thereof are provided. The driving apparatus performs input shaping based on a resonance...
US-9,948,225 Drive and method
A drive, including an electric motor, which is supplied by a rectifier, the rectifier including a time-discrete closed-loop control structure, which regulates...
US-9,948,224 System and method for sensorless control of electric machines using magnetic alignment signatures
A system and method for position sensorless control of an AC electric machine is disclosed. A drive system for driving an AC electric machine provides a primary...
US-9,948,223 Drive unit of synchronous motor
Provided is drive unit of a synchronous motor capable of improving the accuracy of magnetic flux operations with a simple configuration. To this end, the drive...
US-9,948,222 Drive method for non-contact power supply device, non-contact power supply device, and non-contact power supply...
A power supply device (2) is provided with a push-type power generator (4). When a push-button (5) on the push-type power generator (4) is pushed, a variable...
US-9,948,221 Method and system for eliminating low frequency oscillation between generators
A method and system for eliminating the low-frequency oscillation between generators. By way of measuring the absolute rotor angle of a generator and...
US-9,948,220 Rotation angle estimation apparatus for rotating electric machine
A rotation angle estimation apparatus includes: a high-frequency voltage setting unit that sets high-frequency voltages; a circuit operating unit that operates...
US-9,948,219 Rotating electrical machine control device
A rotating electrical machine control device where the changeover control circuit switches the source of electric power for the electronic control unit when the...
US-9,948,218 Linear motor apparatus and control method
This linear motor apparatus includes: a first linear motor and a second linear motor, movable bodies of which move in the same direction in a linked manner; a...
US-9,948,217 Synchronous energy source switching controller and method of operation thereof
The present invention relates to a motor assembly, a method of operation thereof and a transport vehicle provided with the motor assembly. The motor assembly is...
US-9,948,216 Pre-alignment of synchronous loads prior to starting grid
Systems and methods for pre-aligning rotors of synchronous motors on a synchronous AC grid prior to startup of the motors are provided. A partial power...
US-9,948,215 Soft starting system for an electrical motor
Starter system for an electric motor (M) supplied by an electrical network (1), the starter system comprising an electronic control circuit (7) and an...
US-9,948,214 High temperature electrostatic chuck with real-time heat zone regulating capability
Embodiments of the present invention provide electrostatic chucks for operating at elevated temperatures. One embodiment of the present invention provides a...
US-9,948,213 Magnetostrictive power supply for bottom hole assembly with rotation-resistant housing
A power supply includes a rotor having an undulated surface (658, 858, 958, 10, 58) and a magnetostrictive material disposed adjacent to the undulated surface....
US-9,948,212 Method and technique to control MEMS DVC control waveform for lifetime enhancement
The present invention generally relates to a method of operating a MEMS DVC while minimizing impact of the MEMS device on contact surfaces. By reducing the...
US-9,948,211 System and method for controlling the operating area of an inverter coupled to an alternative energy source
A system includes a controller programmed to control an inverter to supply a power grid with a maximum amount AC electrical power while operating within an...
US-9,948,210 Electric power conversion device
An electric power conversion device includes a capacitor package. The capacitor package includes a first positive electrode bus bar that is connected to a...
US-9,948,209 Digital controller architecture for three-phase AC sources
Digital controller architecture for three-phase AC sources includes a phase accumulator, a command control, and a synchronization generator that are utilized to...
US-9,948,208 Inverter capacitor with phase-out bus bar
The various implementations described herein include inverter devices and systems. In one aspect, an inverter includes: a case; a capacitor within the case...
US-9,948,207 Inverter control apparatus
There is provided an inverter control apparatus, a capacitor being provided on an AC side of the inverter. The apparatus includes a system voltage detector...
US-9,948,206 Multilevel power conversion device with flying capacitor
A multilevel power conversion device includes: N (N.gtoreq.1) direct current voltage sources; a first flying capacitor; a second flying capacitor; and a phase...
US-9,948,205 AC line filter and AC-to-DC rectifier module
An AC line filter module includes AC-to-DC rectification circuitry. The rectification circuitry includes four low forward voltage rectifiers coupled together as...
US-9,948,204 Method and apparatus for controlling resonant converter output power
A method and apparatus for controlling power conversion. In one embodiment, the method comprises computing a voltage ratio based on a voltage conversion in a...
US-9,948,203 Direct-current power supply device and electric motor driving device
A direct-current power supply device includes a reactor, one end of which is connected to one output end of an alternating-current power supply, a switching...
US-9,948,202 Transformer module, power reception device and power transmission device
A circuit module equipped with a primary coil of a step-down transformer formed by primary coils of a plurality of transformer elements connected in series with...
US-9,948,201 Power conversion apparatus including terminals having higher resistance portions
A module of conversion circuit includes a High side IGBT, a Low side IGBT connected in series to the High side IGBT, a first terminal connected to the High side...
US-9,948,200 Charge and discharge circuit, control method for charge and discharge circuit, control device for charge and...
A first capacitor is connected between first and second power supply lines. A reactor is connected in series with the first power supply line or the second...
US-9,948,199 HVDC converter system with transformer functions or arrangements integrated into a single transformer unit
An AC-AC converter system includes transformer arrangements and HVDC converter units on primary and secondary sides of the system, respectively. The system...
US-9,948,198 Resonant converter and switching power supply device
A resonant inverter includes a first switch element and a second switch element that are alternately turned on and off, a first capacitor and a second...
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