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Patent # Description
US-1,003,8414 RF switch with split tunable matching network
An improved architecture for a radio frequency (RF) power amplifier, impedance matching network, and selector switch. One aspect of embodiments of the invention...
US-1,003,8413 Fully depleted silicon on insulator power amplifier
The present disclosure generally relates to semiconductor structures and, more particularly, to a fully depleted silicon on insulator power amplifier with...
US-1,003,8412 Signal amplification processing method and apparatus
The application relates to the field of communications technologies, and disclose a signal amplification processing method and apparatus. The method includes...
US-1,003,8411 Method and apparatus for distortion reduction in a class D amplifier
A Class D amplifier is described herein that includes an outer loop, an inner loop, and a notch filter. The notch filter can be located between an output of the...
US-1,003,8410 Power amplification circuit
A power amplification circuit includes: a first amplification transistor, a first signal being input to a base or gate thereof and a second signal obtained by...
US-1,003,8409 RF switch with integrated tuning
Methods and devices are described for reducing receiver complexity in an RF front-end stage. In one exemplary implementation, a switch is used to connect a...
US-1,003,8408 Pseudo-random chopper amplifier
A chopper stabilized amplifier that utilizes a multi-frequency chopping signal to reduce chopping artifacts. By utilizing a multi-frequency chopping signal, the...
US-1,003,8407 Integrated 3-way Doherty amplifier
A die is described comprising at least one 3-way Doherty amplifier comprising a main stage, a first peak stage and a second peak stage. An input is connected to...
US-1,003,8406 Variable switched DC-to-DC voltage converter
A voltage converter can be switched among two or more modes to produce an output voltage tracking a reference voltage that can be of an intermediate level...
US-1,003,8405 Apparatus and methods for multi-supply voltage power amplifiers
Apparatus and methods for power amplifiers that can operate under a wide range of supply voltages are disclosed herein. In certain implementations, a method of...
US-1,003,8404 Adaptive biasing control for radio frequency power amplifiers
Techniques are provided for adapting a bias provided to a radio frequency (RF) power amplifier (PA), so as to achieve linear operation over a wide range of...
US-1,003,8403 Digital isolator
Several circuits and methods for transferring an input data signal in a digital isolator are disclosed. In an embodiment, the digital isolator includes an...
US-1,003,8402 Semiconductor device and electronic device
An oscillator capable of quick startup is provided. A transistor is provided between an output terminal of a certain stage inverter and an input terminal of the...
US-1,003,8401 Systems and methods for fault detection
A fault detection module acquires Spread Spectrum Time Domain Reflectometry (SSTDR) data pertaining to an electrical system, such as a photovoltaic string. A...
US-1,003,8400 Floating structures for floating photovoltaic system and method for connecting floating structures
Floating structures for a floating photovoltaic system fixed to fixing blocks or fixing means fixed to the bottom of water, each floating structure having one...
US-1,003,8399 Electric motor control device
A motor-control device includes: a command generation unit; an operation detection unit; a drive control unit outputting a drive control signal, a speed signal,...
US-1,003,8398 Motor control, apparatus, motor control method, control system, information processing program and recording medium
The present invention realizes a motor control apparatus and the like capable of obtaining an appropriate frequency characteristic. The motor control apparatus...
US-1,003,8397 Multiple engine condition matching via electrical power extraction control
A multi-engine power system is described that includes a load requiring a total amount of electrical power, a first engine configured to provide a first portion...
US-1,003,8396 Motor control device and motor drive device
A sampling period of information according to a load state of an alternating-current motor is controlled so as to be variable with respect to a carrier period...
US-1,003,8395 Energy harvesting system
A system, in certain embodiments, includes a joint and an energy harvesting system. The energy harvesting system includes an energy conversion system configured...
US-1,003,8394 Vibration wave drive device, stator for a vibration wave motor, vibration wave motor, driving control system,...
A vibration wave drive device includes an annular piezoelectric element including a piezoelectric material and multiple electrodes provided sandwiching the...
US-1,003,8393 Single-phase non-isolated inverter
The present invention discloses a single-phase non-isolated inverter, comprising: a first DC-side capacitor, a second DC-side capacitor, a first switch unit, a...
US-1,003,8392 Inverter
An inverter includes: a first transistor (Q1) connected between a first input terminal (T1) and an output terminal (T4); a second transistor (Q2) connected...
US-1,003,8391 Central-string inverter device
A central-string inverter device is provided, including a container and multiple string inverters installed in the container. The multiple string inverters are...
US-1,003,8390 Power conversion circuit
A power conversion circuit comprises a rectifying circuit, a first switching element, a second switching element, a third switching element, a fourth switching...
US-1,003,8389 Method for controlling a converter
A method for controlling a converter including a resonant circuit, where the converter is controlled such that control switches are switched into a first state...
US-1,003,8388 Converter having a low conduction loss and driving method thereof
A converter and a driving method thereof are disclosed. The converter includes a transformer, a main switch, a clamp switch, and a switching controller. Here,...
US-1,003,8387 Control circuit for active clamp flyback power converter with predicted timing control
A control circuit of a flyback power converter according to the present invention comprises a low-side transistor, an active-clamper, a high-side drive circuit,...
US-1,003,8386 Magnetron power supply
A power supply for a magnetron has a high voltage converter, a microprocessor and a resistor. The high voltage converter comprises an integrated circuit...
US-1,003,8385 Flyback converter and controller using counter and current emulator
In one embodiment, a power supply controller, or alternately a semiconductor device having a power supply controller, may have a circuit configured configuring...
US-1,003,8384 Control circuit for an inverter with small input capacitor
A control circuit for an inverter according to the present invention comprises a PWM circuit and a controller. The PWM circuit generates switching signals in...
US-1,003,8383 Low forward voltage rectifier using capacitive current splitting
A Low Forward Voltage Rectifier (LFVR) circuit includes a bipolar transistor, a parallel diode, and a capacitive current splitting network. The LFVR circuit,...
US-1,003,8382 Current mode 3-state buck-boost PWM control architecture
A voltage regulator including a converter and a modulator. The converter includes a switching circuit coupled to an inductor for converting an input voltage to...
US-1,003,8381 Area-friendly method for providing duty cycle inverse to supply voltage
An illustrative converter embodiment employs an oscillator comprising a capacitor and a comparator. The capacitor is alternately coupled to a charging current...
US-1,003,8380 Apparatus for controlling insulating gate-type semiconductor element, and power conversion apparatus using...
An apparatus is adapted to drive an insulating gate-type semiconductor element by a first control voltage and a second control voltage, that are supplied to a...
US-1,003,8379 Audio frequency deadband system and method for switch mode regulators operating in discontinuous conduction mode
A controller for controlling operation of a switching regulator including a modulator, a discontinuous conduction mode (DCM) controller, an audible DCM (ADCM)...
US-1,003,8378 Device and method to stabilize a supply voltage
In a particular implementation, an apparatus to stabilize a supply voltage includes a first current source, a second current source, and a control circuit. The...
US-1,003,8377 Precharging a capacitor with an offset to mitigate control delays in a buck converter
One example includes a power supply system. The system includes a power stage comprising at least one power switch that is periodically activated during an...
US-1,003,8376 DC-DC power converter
A DC-DC power converter having a power source, a load, and a transmission line terminated at one end. A first switch is electrically connected between the power...
US-1,003,8375 Boost DC-DC converter having digital control and reference PWM generators
A boost DC-DC converter operating in pulse frequency modulation (PFM) and pulse width modulation (PWM) modes includes a plurality of PWM signal generators. The...
US-1,003,8374 Apparatus for producing unvarying direct load current
An apparatus for producing unvarying direct load current comprises a direct voltage source connected to a DC-to-pulse voltage converter connected through a...
US-1,003,8373 Circuits, devices and methods for bypassing voltage regulation in voltage regulators
Circuits, devices, and method for bypassing voltage regulation in voltage regulators. A voltage regulator may include a duty cycle component configured to...
US-1,003,8372 Method and device for controlling a charge pump circuit
A charge pump circuit can be controlled by a control signal that is generated from a first signal coming from and output signal of the charge pump circuit, from...
US-1,003,8371 Device for synchronizing variable frequency DC/DC current converters
The invention concerns a device (3) for synchronizing at least two DC/DC converters. It is characterized in that it comprises receiving means (21A, 21B, 23A,...
US-1,003,8370 Reduction of electrical size of bulk capacitors in mobile power supplies
A capacitor input circuit for a mobile power supply includes a bulk capacitor and a switch. The switch connects the bulk capacitor to receive a rectified AC...
US-1,003,8369 Systems and methods for reducing noise and interference in isolated switching power supplies
The present disclosure provides systems and related methods for reducing noise and interference in communications between an external device and implantable...
US-1,003,8368 Power factor correction device and controlling method thereof, and electronic device
PFC device and controlling method thereof, and an electronic device are provided. The device includes: first and second input terminals configured to receive AC...
US-1,003,8367 Control of an electrical converter
An electrical system including a three phase AC input supply and three or more H-bridge converter cells. Each H-bridge converter cell has: an active front end...
US-1,003,8366 Multiphase power factor improvement circuit
A rectification circuit rectifies an alternating current voltage of an alternating current power supply. A parallel converter comprises converters that...
US-1,003,8365 Soft start systems and methods for multi-level step-up converters
A control circuit for a step-up converter includes a soft start module configured to control states of N transistor pairs of the step-up converter, where N is...
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