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Half bridge circuit, full bridge circuit constructed with half bridge
circuit, and three-phase inverter circuit...
In a half bridge circuit according to one aspect of the present disclosure, when a voltage between a first terminal and a third terminal or a voltage between...
Power source inverter for use with a photovoltaic solar panel
An improved topology is presented for a single phase power source inverter that is designed to minimize double frequency ripple. The inverter circuit includes:...
An operation area of a motor is increased without increasing the capacity of a switching element. A current limiter which limits a current flowing in switching...
ARC fault protection for power conversion
An apparatus and system for arc fault protection during power conversion. In one embodiment, the apparatus comprises a power converter comprising a first and a...
Controlling capacitive snubber as function of current in inverter
One or more systems and/or techniques are provided for electrically coupling and/or decoupling a capacitive snubber component to/from an inverter as a function...
Non-isolated DC/DC converter with 2 inductors and zero voltage switching
Zero-voltage switching of a switching element (Q2) is achieved by turning off a switching element (Q1) and then turning on switching element (Q2) while the...
Biomedical implant with a monolithic timing control based rectifier for
multivoltage for biomedical applications
A biomedical implant is provided for simultaneously generating multiple voltages for digital and analog circuits. Two AC voltages induced from an external...
Grounding scheme for modular embedded multilevel converter
A power converter includes at least one leg with a first string including a plurality of controllable semiconductor switches, a first connecting node, and a...
Switching power supply including a rectifier circuit having switching
elements, and electric power converter
An electric power converter includes a bridge circuit, a transformer, a rectifier circuit, and a smoothing circuit. The rectifier circuit includes a first...
Power supply bus circuit
A power supply bus circuit, includes a voltage regulator circuit, and an impedance isolation circuit, and further including one or more voltage adjustment...
Power conversion apparatus and refrigeration air-conditioning apparatus
Provided is a power converter for converting electric power between a power source and a load, including: a boosting device including a boost rectifier...
Electrical circuit for delivering power to consumer electronic devices
An electrical circuit for providing electrical power for use in powering electronic devices is described herein. The electrical circuit includes a primary power...
Voltage detecting circuit for switching converters and the method thereof
A voltage detecting circuit used with a switching converter. The switching converter having an energy storage component, a first power switch and a second...
Control device for rectifiers of switching converters
A control device controls a rectifier of a switching converter that is supplied with an input voltage and provides an output current. The rectifier is...
Switching mode power supply capable of providing a block time in response
to an output current
A power controller provides a block time in response to an output current to an output load, and the block time determines a maximum switching frequency of a...
Energy recycling system and recycling method thereof
An energy recycling system and an energy recycling method are disclosed. The energy recycling system includes several working circuits and a first energy...
Synchronous rectifier controller for a switched mode power supply
Consistent with an example embodiment, a synchronous rectifier controller for a switched mode power supply comprises a transformer with a secondary side winding...
Zero current detector and DC-DC converter using same
A DC-DC converter includes a zero current detector. The DC-DC converter includes a high-side switch and a low-side switch. When the DC-DC converter works in a...
Switching regulator incorporating operation monitor
A switching regulator includes a first switching element and a second switching element in a pair to be switched over to convert an input voltage to a certain...
Voltage converter circuit and associated control method to improve
A converter circuit has an error amplifier to provide an error signal; a proportional amplifier to provide a gain signal according the error signal and an...
Multiphase buck converter and multiphase buck conversion method
A multiphase buck converter (10) is disclosed, comprising: --a first buck converter branch (SD1, L1) comprising a first core section (COR1), a first power...
DC/DC converter efficiency improvement for low current levels
The present document relates to efficient DC/DC converters with a modular structure for providing different levels of output currents. A controller for...
DC-DC converter and organic light emitting display including the same
A DC-DC converter includes a first power source generator, the first power source generator including an input port and a first output port, the first power...
Sensorless current sense for regulating inductor current in a buck
A device and method for sensing an inductor current in an inductor is provided that generates a voltage signal proportionate to the inductor current if the...
Charge pump stage and a charge pump
A charge pump cell, comprising: an input node; an output node; Q channels, where Q is an integer greater than one, and where at least two of the channels...
Dynamic operating frequency control of a buck power converter having a
variable voltage output
A switch controller for a variable output voltage power converter includes a pulse width modulator (PWM) output producing a pulsed signal for driving a power...
Power supply device for supplying standby voltage by using main voltage
A power supply device may include: a standby power unit converting a direct current (DC) voltage to an operating voltage and a first standby voltage and...
Bidirectional DC-to-DC converter
A bidirectional DC-to-DC converter is configured to convert electrical energy from a first and second DC source. The bidirectional converter includes an output...
Provided is an electric device, including: a secondary battery; and a power supply circuit for dropping an input voltage which is input from the secondary...
Apparatus and method for zero voltage switching in bridgeless totem pole
power factor correction converter
Power factor correction (PFC) apparatus, controllers, and methods for operating bridgeless totem pole power factor correction converters in which AC input...
High power-factor control circuit and power supply
An SMPS received a rectified periodic input line voltage and is configure to provide a regulated output. A power switch has a constant turn-on time in a given...
Inductance variation based compensation in boost converter
Aspects of the present disclosure are directed to method, circuits, and apparatuses for power conversion. In an example embodiment, an apparatus includes a...
Stability control of a power factor correction circuit using adaptive
mulitplier voltage feedback
A power factor correction (PFC) circuit includes an adaptive multiplier feedback control circuit to enhance stability of the PFC circuit for high input voltage...
High voltage start-up circuit with adjustable start-up time
A high voltage start-up circuit with adjustable start-up time, wherein, the drain electrode of the first NMOS transistor is connected with a first terminal of...
Systems and methods for two-level protection of power conversion systems
Systems and methods are provided for protecting a power conversion system. A system controller includes a two-level protection component and a driving...
Apparatuses and methods for converting single input voltage regulators to
dual input voltage regulators
Apparatuses and methods for providing output power are disclosed. In an example method, a control signal is received at an output stage. The control signal may...
Active rectifier with delay locked loop to compensate for reverse current
leakage and wireless power receiving...
An active rectifier and a wireless power receiver including the active rectifier are provided. According to an aspect, an active rectifier may include: a first...
Single-phase to three phase converter AC motor drive
Methods and systems for power conversion. An energy storage capacitor is contained within an H-bridge subcircuit which allows the capacitor to be connected to...
Lens positioning system
An actuator includes an inner element coupled to an outer element by a linear-motion bearing that provides a single degree of translational movement of the...
Method of manufacturing a magnet plate for a linear motor
A method for producing a magnet plate for a linear motor is provided. The magnet plate comprises a base plate and a plurality of magnets juxtaposed to one...
Voice coil motor
Disclosed is a voice coil motor, the motor including a mover having a bobbin equipped with a lens and a coil block secured to an outer circumference of the...
Dual rotor switched reluctance machine
A dual rotor switched reluctance machine with a fixed stator and separate input and output rotors on either side of the fixed stator is used to transmit power...
Method of manufacturing laminated core having permanent magnets sealed
A method of manufacturing a laminated core, having a laminated core body 10a formed by laminating plural core sheets 11 and having magnet insertion holes 13, 14...
Method for producing a machine component for an electrical machine,
machine component and electrical machine
The invention relates to a method for producing a machine component (1) for an electrical machine, wherein the machine component (1) is formed with a...
Electric machine housing
A housing for enclosing electronics of a motor having an axis of rotation is provided. The housing includes an end cap having an outer surface and an inner...
Device for monitoring the lifetime of the fan bearings
The present invention is a device for monitoring a lifetime of fan bearings, which is applied to a fan, comprising a base, at least one sensing unit, a...
Generator motor and electric vehicle using same
To uniformly cool down armature windings along the circumferential direction of a stator in a generator motor. A generator motor includes a stator 1 fixed to...
Electric machine with enclosed, autonomous cooling medium circuit
An electric machine has a base body with a stator, a rotor shaft mounted in the base body, and a heat exchanger. Cooling ducts for a liquid cooling medium are...
Concentric ring generators
A concentric generator usable with a gas turbine engine having a shaft. Disclosed embodiments include a generator with a rotor integral with the gas turbine...
Portable fluid driven generator for instrument use in hazardous
An apparatus for facilitating use of instruments in hazardous environments includes a fluid line and a fluid-driven generator. The fluid line includes: an inlet...