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Modulation method for switching modulator
An exemplary embodiment of the present disclosure illustrates a modulation method for a switching modulator. Firstly, a data signal is received. Then, a first...
Self-healing technique for high frequency circuits
A self-healing monolithic integrated includes an electronic circuit having a plurality of transistors. At least one sensor is disposed within and electrically...
Power amplifier controller
The present disclosure provides a power amplifier controller for starting up, operating, and shutting down a power amplifier. The power amplifier controller...
Multi-way doherty amplifier
An electronic circuit has a multi-way Doherty amplifier. The multi-way Doherty amplifier comprises a two-way Doherty amplifier with a main stage and a first...
Integrated power device with a metal oxynitride active channel for power
switching and microwave amplification
One object of this invention is to provide a structure of integrated power transistor device having low thermal budget metal oxynitrides as the active channel...
Resonator element, resonator, and oscillator
A resonator element includes: at least one resonating arm extending, wherein the resonating arm has a mechanical resonance frequency which is higher than a...
Voltage controlled oscillator including MuGFETS
Voltage-controlled oscillation is described. In an apparatus therefor, an inductor has a tap and has or is coupled to a positive-side output node and a negative...
Methods and apparatus for clock oscillator temperature coefficient
Apparatus and methods are provided for a temperature-compensated oscillator adapted to receive an input reference current. The apparatus and methods include or...
Control apparatus and shift-by-wire system using the same
A current limiting circuit restricts electric currents flowing through windings and MOSs such that an average of a current value of the electric currents...
Apparatus for carrying out improved control of rotary machine
In an apparatus for controlling a variable of a rotary machine based on an AC voltage supplied to the rotary machine via a switching element of a power...
Method and system for driving electric machines
A system for driving an electric machine is provided. The system includes a power converter coupled to an input source and the electric machine. The power...
Hot standby power supply for a variable frequency drive
A hot standby power supply for a variable frequency drive of a floating vessel is provided. The variable frequency drive may power an electric motor of the...
Parallel running control apparatus for inverter generators
In a parallel running control apparatus for an inverter generator A having a first, second and third inverters each connected to three windings wound around an...
Driving circuit for vibration motor and driving method for vibration motor
The present invention provides a driving circuit for a vibration motor and a driving method for the vibration motor. The driving circuit comprises: a detecting...
Two stage flux switching machine for an electrical power generation system
An electrical power generation system includes a flux switching machine (FSM) including an FSM rotor operatively connected to an FSM stator, the FSM rotor...
Power dissipating arrangement in a wind turbine
A power dissipating arrangement for dissipating power from a generator in a wind turbine is provided. The generator comprises a plurality of output terminals...
Diagnosis of over-current conditions in bipolar motor controllers
A circuit for controlling a load current through a coil is connected to an output port of a transistor H-bridge that includes two low side transistors and two...
DC motor control method and DC motor control circuit
The present disclosure provides a DC motor control method comprising comparing a first periodic signal and a second periodic signal for generating a control...
Motor-driven appliance and battery pack
A motor-driven appliance includes a battery; a motor including permanent magnets as field magnets; a momentary maximum current upper limit storage unit in which...
Electric motor drive device
An electric motor drive device 1000 includes: an inverter 3 that drives a motor 4, a voltage division circuit 2 that serves as a neutral point potential...
Sensorless rotor angle detection circuit and method for a permanent magnet
An estimate of the initial position of a rotor is made by monitoring sensed motor current signals which are amplitude and phase modulated with the rotor flux...
Brushless motors with linear hall sensors
A motor system includes a motor including two linear Hall sensors configured to output analog signals, and a controller configured to control the motor. The...
Motor driving method and operating method thereof
Provided is a motor driving circuit which transmits a driving signal to a motor, including a gate driver generating the driving signal corresponding to a pulse...
Motor control apparatus
In a butting control, while performing a constant current control for a motor based on an output of a current sensor, the motor is driven by sequentially...
Graphene sheet and nanomechanical resonator
A graphene sheet is provided. The graphene sheet includes a carbon lattice and a spatial distribution of defects in the carbon lattice. The spatial distribution...
Wireless control of power network switching devices
A method for controlling a plurality of power converters connected to a power supply network is described. Each power converter includes high-power...
Power semiconductor device to reduce voltage variation between terminals
The purpose of the present invention is to reduce variance of a voltage to be applied between the terminals of each of the power semiconductor elements, and to...
Method for operating an inverter and inverter operating according to the
A method for operating an inverter and an inverter operating according to the method is disclosed, wherein the inverter is controlled in accordance with...
Switch controller, switch control method, and power supply device
comprising the switch controller
An exemplary embodiment of the present invention relates to a switch controller, a method for controlling a switch, and a power supply including the switch...
SCR dimming circuit and dimming control method
A silicon-controlled rectifier (SCR) dimming circuit and a dimming control method are disclosed. The SCR dimming circuit includes a SCR element, a rectifier...
Systems and methods for impedance stabilization
An AC-to-DC adapter may be provided in order to increase the sensitivity of a touch-sensitive surface. Such an AC-to-DC adapter may include a rectifying circuit...
Multilevel converter systems and sinusoidal pulse width modulation methods
Sinusoidal pulse width modulation (SPWM) control techniques, computer readable mediums, and apparatus are presented for operating a multilevel converter, in...
Power delivery systems and methods for offshore applications
A system for delivering power to an offshore load is disclosed. The system may include an on-land source of three-phase power, an on-land AC-to-DC power...
Method and system for polarity independent step-up converter capable of
operating under ultra-low input voltage...
Apparatus and method for a polarity independent step-up converter capable of operating with ultra low input voltage. The step-up converter as disclosed herein...
Single stage boost-asymmetric LLC
An AC/DC power converter utilizing a single stage boost-asymmetric LLC topology is disclosed. The converter uses a combined pulse width modulation (PWM) and...
Converter with shared current path and isolation barrier
A converter with at least one or more transformers having at least one primary side magnetically coupled to at least one secondary side, the primary side being...
Clamped capacitor resonant power converter
A power converter including a transformer, a resonant circuit including the transformer and a resonant capacitor having a characteristic resonant frequency and...
Flyback apparatus with voltage superposition circuit and overpower
A power supply apparatus includes a main converter, a voltage superposition circuit, a voltage detection circuit and a pulse width modulation controller. The...
Bidirectional isolated DC-DC converter
The present disclosure discloses a bidirectional isolated DC-DC converter, which includes two ports, two voltage and current isolated acquisition units, a...
Power supply system
A power supply system includes a plurality of DC-DC converters and at least one operating unit. The DC-DC converters are connected in parallel to one another....
Boost regulator incorporating peak inductor current modulation
A boost switching regulator incorporates a peak inductor current modulation circuit to modulate the peak inductor current as a function of the load current, the...
Switching regulator output capacitor current estimation
A switching regulator includes a controller and a power stage for coupling to a load through an inductor and a capacitor. The a controller is operable to...
Dead-time compensation in a power supply system
One embodiment includes a power supply system. The system includes a pulse-width modulation (PWM) system configured to generate a PWM signal. The system also...
Low input voltage boost converter with peak inductor current control and
offset compensated zero detection
The low input voltage boost converter with peak inductor current control and offset compensated zero detection provide a boost converter scheme to harvest...
Power supply device, control circuit, electronic device and control method
for power supply
A power supply device that includes a switch circuit to which an input voltage is supplied, a coil coupled between the switch circuit and an output terminal...
Voltage adjustment method, and voltage pre-regulator power supply circuit
A voltage adjustment method, and a voltage pre-regulator power supply circuit and system, that implements highly-efficient output of a power supply in a quasi...
Power supply with charge pump and control method
The present invention provides a power supply comprising a driver and a charge pump. The driver is configured to provide a driving signal to a load. The charge...
Controlling power factor in a switching power converter operating in
discontinuous conduction mode
A power system includes a controller to control a switching power converter, and the controller is configured to automatically transition operation of the...
Adaptive nonlinear current observer for boost PFC AC/DC converters
Systems, methods, and devices which estimate the inductor current in a power factor correction (PFC) converter for use with AC/DC converters. A control system...
Systems and methods for protecting power conversion systems from thermal
System and method for protecting a power conversion system. An example system controller includes a protection component and a driving component. The protection...