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Motor control device
A motor control device includes: a current detection portion provided to an inverter and detecting a current flowing to a motor due to a voltage generated...
Wind energy installation
A method for directly converting wind energy into electrical energy is provided. An air stream is ionized and then routed through the electrical field of a...
The present invention is a rotary actuator having segments, which are spaced apart and are connected by means of at least one support structure, and at least...
Power generation device having a dielectric body and an electret
Provided is a power generation device having a dielectric body and an electret, where power is generated by varying the distance between the dielectric body and...
Power conversion system with a DC to DC boost converter
A voltage booster allowing for increased utilization of low voltage, high current, unregulated DC power ("LVDC source"), such as, but not limited to, fuel...
Single-phase three-wire power control system and power control method
The present disclosure provides a single-phase three-wire power control system integrating the electricity of a DC power supply device to an AC power source....
Circuits and methods for photovoltaic inverters
Circuits and methods for photovoltaic inverters are provided. In some embodiments, a power inverter circuit is provided, the inverter comprising: an input...
Multilevel inverter device and method
An embodiment multilevel inverter comprises a first boost apparatus having an input coupled to a positive dc bus and a second boost apparatus having an input...
Method for feeding electrical power into a three-phase AC voltage system
The present invention relates to a method for feeding an unbalanced, three-phase current into a three-phase AC voltage system, comprising the steps of:...
Power supply with DC breaker switch and reduced regulated DC link voltage
Generally, this disclosure provides circuits and methods to reduce and regulate DC link voltage in a power supply through the use of a DC breaker circuit. The...
Driving device of synchronous rectification apparatus
A driving device of a synchronous rectification apparatus is provided. The driving device includes a voltage detection part disposed on a power input terminal...
Ground power unit for aircraft
Embodiments of a ground power unit are disclosed for providing power to a grounded vehicle, such as an aircraft. In accordance with certain embodiments, the...
Systems and methods for a transformerless power supply to limit heat
generation at an output transistor via...
Systems and methods are provided for a transformerless power supply configured to limit heat generation. A system includes a power supply input configured to...
Smart power adaptor and method for controlling power supplay thereof
A smart power adaptor and a method of controlling power supply thereof are provided. The smart power adaptor includes a power conversion circuit and a control...
Power conversion apparatus
According to one embodiment, a controller determines the polarity of the input voltage detected by an input voltage detector. Then, when the polarity of the...
Method of current control of three-phase modular multilevel converter with
inductance changes allowed
Current of a three-phase multilevel modular converter (MMC) is controlled. The control is a division-summation (D-.SIGMA.) method yet uses integration to...
Universal AC adaptor
Power from an AC source at a source voltage is converted for delivery to a load at a DC load voltage, where the source voltage may vary between a high line...
AC load detection and control unit
Devices and methods for controlling a state of a load powered by an AC power source include a control unit having a memory, a processor coupled to the memory, a...
Enhanced flyback converter
A DC/DC flyback converter that exhibits reduced switch and transformer voltage stresses in comparison to known flyback converters. The flyback converter also...
Control device of DC-DC converter
An object is to suppress deterioration of a high-voltage side battery regardless of the magnitude of a load current. Provided is a control device of a DC-DC...
Switching power supply device
A drive control circuit for a switching power supply device. The drive control circuit includes an output control circuit configured to generate an output...
DC-DC conversion circuit and method of protecting devices therein
A protection circuit protects transistors in a DC-DC conversion circuit from over voltages. The transistors in the conversion circuit include first and second...
Transmission voltage loss compensation circuit, compensation method,
controlling chip and switching power supply
In one embodiment, a method of compensating for transmission voltage loss from a switching power supply, can include: (i) receiving a sampling signal that...
Power delivery device, AC adapter, electronic apparatus and power delivery
system, having variable function of...
The PD device includes: a DC/DC converter disposed between an input and an output; a primary-side controller configured to control an input current of the DC/DC...
Power supply with multiple control topologies
The present disclosure describes a power supply with multiple operating modes, to detect a load condition of an electronic device, and to automatically change...
Secondary-side dynamic load detection and communication device
A switching power converter provides regulated voltage to a load. The switching power converter comprises a transformer including a primary winding coupled to...
Control method and AC-DC power converter
In one embodiment, a method of controlling an AC-DC power converter, can include: (i) receiving, by a filter capacitor, a first branch current from an input...
Signal transmission method and related device
A method of operating an electrical power supply device having a primary side and a secondary side is provided. The method includes transmitting with an...
Systems and methods for regulating power conversion systems with output
detection and synchronized rectifying...
System and method for regulating a power conversion system. An example system controller includes: a first controller terminal and a second controller terminal....
Power converter with low ripple output
A power supply includes two or more input waveforms being shaped or selected so that after being separately level-shifted and rectified, their additive...
Voltage conversion circuit with voltage selection of transistor bulk
A voltage conversion circuit is disclosed. The voltage conversion circuit comprises an energy-storing inductor, an N-type transistor, a P-type transistor, a...
Non-insulating type switching power supply device
A switching power supply device includes a first control circuit that turns a first switch on when first and second switches are off and a voltage at a junction...
DC/DC converter having a step-up converter supplying a step-down converter
A DC-DC converter has a Step-Up stage connected to a Step-Down stage. A common Step-Down controller is designed and configured such that a single reference...
Self-powered BJT driver for power supplies
An apparatus for providing auxiliary power to an off-line switcher. The apparatus includes a high voltage semiconductor switch and a driver for the high voltage...
Power converter and controller device
A switching power converter for DC-DC converting has an inductance coupled between a power output and a high side switch in a controller device. The controller...
Electronic device for average current mode DC-DC conversion
An average current mode buck-boost DC to DC converter has a buck stage coupled between an input voltage source terminal and an output terminal. A boost stage is...
Feed control apparatus for inductive load with reduced power loss
In a feed control apparatus that controls a feed state for an inductive load by controlling the opening and closing of a load opening and closing element...
The invention provides advances in the arts with useful and novel driver methods. The invention provides circuit driver and control methods for relatively...
A voltage converter includes a power supply circuit configured to generate an output voltage based on an input voltage in response to a control signal, and a...
System, method and apparatus for controlling converters using input-output
A system, method and apparatus for controlling boost and buck-boost converters using input-output linearization and leading-edge modulation is provided. The...
Switching regulator system with low power operation
A regulator controller including terminals for coupling to a voltage source, an inductor and an output capacitor, and including a switching circuit and a switch...
Switching power supply with dynamically programmed threshold voltage
A power supply is disclosed herein. For example, a method for controlling the power supply can include dynamically programming a threshold voltage. The method...
Droop reduction circuit for charge pump buck converter
A Charge Pump Buck Converter (CPBC) includes a BC including an inductor and a CP coupled in parallel. Control logic is coupled to a switch driver coupled to a...
Charge pump circuit for providing voltages to multiple switch circuits
A charge pump circuit generates a charge pump voltage that powers a bias circuit. The bias circuit generates a reference current and generates switch currents...
In a power converter, at least two main current paths each including an inductor and a transistor are connected between input terminals, and at least two...
Low power conversion and management of energy harvesting applications
A method and apparatus for low voltage conversion and energy storage uses a charge pump array including a first set of capacitors in parallel with a second set...
2-phase threshold detector based circuits
A switched capacitor circuit includes a threshold detector to generate a threshold detection signal when a difference between first and second input signals...
Converter circuit with power factor correction for converting AC input
voltage into DC output voltage
A converter circuit with power factor correction comprises an alternative current (AC) voltage source, a bidirectional AC switch circuit, a first ...
Power factor correction system
A power factor correction system is comprised of a inductor and a forward transformer. The inductor is connected to the first winding of the forward...
Method of controlling a power factor correction converter and related
closed-loop control system
A method controls a power factor correction converter that includes a boost inductor and a switch. The method generates a sense signal representing a rectified...