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Peg-Style Electrostatic Rotating Machine
An electrostatic rotating electrical machine employs interdigitated axial pegs on opposed rotor and stator plates, the pegs immersed in a high dielectric...
POWER CONVERTER WITH PRE-COMPENSATION FOR DEAD-TIME INSERTION
A power converter has a phase leg with upper and lower switching devices coupled across a DC link. A junction between the devices is coupled to a load. A...
POWER CONVERTER WITH DEAD-TIME VARIATION TO DISPERSE DISTORTION
A power converter receives a DC supply voltage across a phase leg. The phase leg comprises an upper switching device and a lower switching device coupled...
POWER CONVERTER WITH SELECTIVE DEAD-TIME INSERTION
A power converter has one or more phase legs, each with upper and lower switching devices. A current sensor detects a magnitude of a current flow from a...
POWER CONVERSION SYSTEM AND POWER CONVERSION DEVICE
A power conversion system includes a master power conversion device and one or more slave power conversion devices. Each power conversion device includes: a...
Electromagnetic Drive Control System
An electromagnetic drive control system comprising an H-shaped full bridge driving circuit connected to a controlled electromagnetic unit, including a first...
SELF-EXCITED PUSH-PULL CONVERTER
A self-excited push-pull converter, where between the bases of the push-pull converter's transistors (TR1, TR2) and the effective power suppler there is...
POWER CONVERSION DEVICE AND CONTROLLING METHOD THEREOF
A power conversion device includes a power supplying terminal, a switching converter, a signal injector, a coupler circuit, a detecting circuit and a...
INVERTER CONTROLLER AND CONTROL METHOD OF INVERTER DEVICE
An inverter controller is configured to control an inverter device. The inverter device is configured to generate a drive voltage of an AC load by a switching...
SYSTEM FOR CONTROLLING AN ELECTRICAL LOAD
The present invention relates to a control system for an electric charge, said system comprising: --A first power converter (VV1) and a second power converter...
HYBRID POWER CONVERSION SYSTEM AND METHOD OF DETERMINING EFFICIENCY USING
A hybrid power conversion system includes an inverter, a switching controller, and an efficiency measurer. The inverter is connected in series to a first...
FRONT END PROTECTION POWER CONTROLLER
A power controller monitors and controls supply of AC power to a load. A power supply derives DC power supply voltages from the input AC power. The power...
WIND POWER CONVERSION SYSTEM
A wind power conversion system includes plural first converting circuits and a second converting circuit. The plural first converting circuits perform a power...
MODULAR MULTILEVEL CONVERTER AND CHARGING CIRCUIT THEREFOR
Methods and charging apparatus are presented for charging cell capacitors of a multilevel power conversion system, in which an auxiliary charging source is...
HVDC SERIES CURRENT SOURCE CONVERTER
A multilevel current source converter (CSC) for controlling electrical power transmission in a high voltage direct current (HVDC) transmission system includes...
A transformer is provided between a power supply, and a load with a resistance value R, and includes a two-terminal pair circuit composed of n-number of...
ELECTRONIC RESONANT AND INSULATED HALF-BRIDGE ZETA CONVERTER
An electronic half-bridge ZETA converter may include a transformer, wherein a half-bridge is connected to the primary winding of transformer, and wherein a...
POWER CONVERSION APPARATUS
Phase differences between primary-side series-connected first and second arms and secondary-side series-connected fifth and sixth arms and between primary-side...
REDUCING SWITCHING LOSSES ASSOCIATED WITH A SYNCHRONOUS RECTIFICATION
A synchronous rectifier is described that includes a transistor device that has a gate terminal, a source terminal, a drain terminal, and a field-plate...
HIGH-VOLTAGE MEDICAL POWER SUPPLY DEVICE AND CONTROLLING METHOD THEREOF
A power supply device includes a power supply module, a high voltage conversion module and a control module. The high voltage conversion module includes a...
Knee Voltage Detector
A knee voltage detector for a flyback converter is provided. The knee voltage detector comprises a delay unit, for delaying an auxiliary related voltage for a...
METHOD OF CONTROLLING A DC/AC CONVERTER
A method of controlling a DC/AC converter (2) comprises the steps of (a) providing a desired AC side reference value (V.sub.Amp); (b) setting a reference...
Energy storage arrangement, energy storage system and method for operating
an energy storage arrangement
An energy storage arrangement or configuration includes an energy store or storage device which can be connected to an electrical energy supply via a buck...
Intrinsically Safe Voltage Limiting Shunt Regulator Circuit
An intrinsically safe redundant regulator circuit includes a plurality of voltage limiting regulators between a regulated rail and a ground rail. Each of the...
Provided is a voltage regulator having a simple circuit configuration in which a protection circuit is not erroneously operated, and delay time of activation...
Method for Joint Control of a Power Source and Active Filter
Methods, systems and apparatuses for voltage regulation are disclosed. For an embodiment, a voltage regulator includes a power source block configured to...
DC/DC CONVERSION DEVICE AND LOAD-DRIVE CONTROL SYSTEM
A DC/DC conversion device that includes three-level power conversion circuits in a plurality of phases. The DC/DC conversion device includes voltage detectors...
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...
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...
BATTERY POWER SUPPLY WITH AUTOMATIC LOAD SENSING
A power supply, and a method of operation thereof, includes: a power source; a microcontroller for comparing a first sense potential with a second sense...
MULTI-PHASE PARALLED CONVERTER AND CONTROLLNG METHOD THEREFOR
A multi-phase parallel converter can include: sampling circuits corresponding to power stage circuits to form a plurality of phases of the multi-phase parallel...
NEGATIVE REFERENCE VOLTAGE GENERATING CIRCUIT
A negative reference voltage generating circuit includes a switched capacitor circuit having a capacitor connected to a first and a second nodes, a first and a...
APPARATUS AND METHOD FOR REACTIVE POWER CONTROL
Apparatus and method for controlling reactive power. In one embodiment, the apparatus comprises a bidirectional power converter comprising a switched mode...
Autonomous Multi-Source Energy Harvesting System
There is provided a self-powered energy harvesting system for harvesting electrical energy from the environment for feeding a load, the system comprising a...
POWER CONVERSION DEVICE
A power conversion device is capable of achieving three requirements to restrict a surge voltage, ensure high radiation performance of SW elements, and...
voltage surge protection for active rectifiers in the event of load
A rectifier module for an active bridge rectifier having two switching elements, connected in series between two end terminals, and between which a center tap...
INTEGRATED CIRCUIT CHARGE PUMP WITH FAILURE PROTECTION
Disclosed is a charge pump protection device including a power supply voltage, a charge pump to produce an output voltage higher than the power supply voltage,...
CONVERTOR FOR ELECTRIC FEEDER AND/OR SUBSTATION FOR RECUPERATING THE
The invention relates to an electric converter (30) for a substation feeding an electric grid and/or for recuperating the braking energy of rail vehicles...
Active Filter and Communications System
An active filter, which may effectively suppress the low-frequency noise, includes a main circuit and a control circuit. The control circuit is configured to...
Magnetic Actuators for Haptic Response
In an embodiment, an actuator or circuit includes elements moveably coupled via bearings positioned between curved grooves. The bearings and the curves may...
A vibration motor is provided in the present disclosure. The vibration motor includes a housing having a receiving space, and a vibrating part and a fixing...
A vibration motor is disclosed. The vibration motor includes: a housing; a vibration part arranged in the housing, the vibration part including a first...
FIXING METHOD AND FIXING STRUCTURE FOR FIXING A COIL INSULATOR, STATOR
USING THE SAME AND ROTATING ELECTRICAL...
A fixing method for fixing a coil insulator which is provided between a stator core 5 including a back yoke 7 and a plurality of teeth 8 projecting in the...
METHOD OF MANUFACTURING STATOR CORE
According to one embodiment of the present invention, this stator core manufacturing method has a punching step for punching core members, which each have a...
Method of Manufacturing the Rotor Assembly for an Electric Motor
A method is provided for fabricating a rotor assembly for an electric motor which utilizes pre-fabricated conductive rotor bars and die cast end rings....
ELECTRIC POWER TOOL
An electric power tool includes a housing, a commutator motor housed in the housing, and a brush holder disposed in the housing. A fan is disposed to the...
PORTABLE GENERATOR SYSTEM FOR PROVIDING TEMPORARY POWER TO AN
A portable generator produces secondary voltage to feed a portable trailer mounted transformer through secondary cables. Transformer voltages are stepped up to...
Ceiling Fan Motor
A ceiling fan motor with a reduced height includes a stator, a rotor and a circuit unit. The stator includes an iron core and a shaft. The iron core has an...
A motor assembly is proposed, having a motor disposed in a housing, with an electronics system and a cooling element, wherein the cooling element and the...
METHOD OF ACHIEVING VARIABLE PERFORMANCE OF AN ELECTRIC GENERATOR
Disclosed is a method of operating a large electric generator, the generator having a rotor arranged along a centerline of the generator, a core arranged...