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Multi-level inverter with flying capacitor topology
A multi-level inverter having one or more banks, each bank containing a plurality of low voltage MOSFET transistors. A processor configured to switch the...
A driving device includes a driving circuit and a control circuit. The driving circuit has an input terminal and an output terminal and applies a driving...
A power circuit includes: a rectifying circuit configured to rectify an AC voltage; a capacitor configured to integrate an output current of the rectifying...
Switching power supply apparatus
A switching power supply apparatus which receives AC voltage and includes: a transformer including a primary winding and a secondary winding; a first...
Voltage regulation apparatus
A voltage regulator for regulation both of AC and of DC voltages, is provided in a regulator module (30) which uses a repetitive switching signal (32) to...
Frequency converter with DC link capacitor and method for pre-charging the
DC link capacitor
A frequency converter has an AC-DC converter and an inverter interconnected via a DC link having a first and a second circuit branch interconnected by a DC link...
DC-DC converter circuit for high input-to-output voltage conversion
The present invention provides a series of DC-DC converter circuit designs, and DC-DC converters based on such circuit design, that provide high input-to-output...
DC to DC converter and DC to DC conversion system
The present disclosure discloses a DC/DC converter and a DC/DC conversion system. The DC/DC converter includes a transformer, a primary power circuit, a...
Method of controlling a switching converter in burst mode and related
controller for a switching converter
A method of controlling a switching converter and a related controller suitable for the switching converter allow to implement a burst-mode functioning without...
Method to control a minimum pulsewidth in a switch mode power supply
A power converter circuit includes a transformer and a main switch controller by a primary side controller. A sensing circuit is implemented that senses the...
Power supply system, image forming apparatus having the same, and control
method of the same
A power supply system includes: a switching power supply configured to convert an AC voltage from an AC power supply into predetermined DC voltages, and outputs...
Switching power converter with secondary to primary messaging
A primary-only power supply enables transmission of a signal or message from the secondary side of an isolated power supply to the primary side. To enable...
Circuits and methods for reducing output voltage overshoot of switch mode
A switching mode power supply (SMPS) includes a transformer having a primary winding for coupling to an input power source, a secondary winding for providing an...
Switching power-supply device
A switching power-supply device includes a COMP-voltage comparator circuit that compares a COMP-voltage obtained by performing phase compensation on the...
High efficiency and low loss AC-DC power supply circuit and control method
Disclosed herein are high efficiency, low loss AC-DC power supply circuits, and associated control methods. In one embodiment, an AC-DC power supply circuit can...
Low total harmonic distortion and high power factor correction power
A controller circuit for the control of a power converter is disclosed. An example controller circuit generates a waveform that drives a switch that controls...
On/off modulation of a switching cell-based power converter
A method of on/off modulation of a very high frequency switching cell-based power converter includes receiving an input voltage signal to be applied to a...
Slab inductor device providing efficient on-chip supply voltage conversion
A method is disclosed to operate a voltage conversion circuit such as a buck regulator circuit that has a plurality of switches coupled to a voltage source; a...
Switching power-supply device
A switching power-supply device configured to convert and output a first direct voltage supplied from an input power source to a second direct voltage by...
Power supply apparatus with feedback ratio calculation unit
A power supply apparatus supplies a power supply signal to a device's power supply terminal via a power supply line. An A/D converter receives, via a feedback...
Control with hysteresis of an electronic device using a pulse-width
A device and switching method for a circuit for generating an output voltage (Vout) via a control signal (CTRL) with two pulse-width modulated states are...
Apparatus, system, and method for voltage level switching
Various embodiments include apparatus, systems, and methods having a reference node to receive a reference voltage, a first node to provide a signal, and a...
Series and parallel hybrid switched capacitor networks for IC power
Series switches for power delivery. A regulator operated as a current source is arranged in parallel with a switched capacitor divider. A switched capacitor...
Power source control device and method for controlling power source
A DC-DC converter 4 accumulates power generated by a power source in a power storage element, converts power from an input into a predetermined voltage to...
Control circuit for reducing touch current of a power converter and
operation method thereof
A control circuit for reducing touch current of a power converter includes an auxiliary pin, a zero-crossing signal generator, a frequency limiting signal...
AC-to-DC power supply apparatus and power control structure and method
An AC-to-DC power supply apparatus and a power control structure and method thereof are provided. The provided method includes: making an AC-to-DC converter in...
Power circuit part, power control method thereof and display apparatus
having the same
A power circuit part, a power control method and a display apparatus having the same control an output DC voltage supplied as operating power to elements such...
Automatic AC bus voltage regulation for power distribution grids
A system for automatically regulating voltage on a distribution-level AC bus having an actual voltage and a nominal voltage includes an electronic power...
Optimal trajectory control for LLC resonant converter for soft start-up
By setting switching instants of a switching circuit of a resonant power converter based on current in a resonant circuit reaching a current limit of a current...
Resonant-mode power supply with a multi-winding inductor
A resonant-mode power supply, comprising an assembly of switches connected in a bridge or a half-bridge configuration, a series resonant circuit connected in...
Methods and apparatus for active front end filter capacitor degradation
Apparatus and methods are provided for detecting degradation of delta-connected filter capacitors in an active front end (AFE) power converter, in which delta...
In a linear motor, one of a field system and an armature is configured as a mover and the other is configured as a stator. The field system relatively moves...
Electric machine with linear mover
An electric machine that allows enhancement of thrust of a mover is provided. An electric machine includes a magnetic pole piece array including a plurality of...
Double rotor stepping motor
In precision mechanical actuators, wherein a high precision stepping motor can notably be used in the actuating mechanisms of artificial satellites, a stepping...
Wearable vibration device
A device used for generating mechanical vibrations which includes at least one partially elastic closed shaped frame, a coil affixed to a first edge of the...
Motor control device, image forming apparatus, and motor control method
A motor control device performs drive control of a motor connected to an object. The motor control device includes a rotation detection unit that detects...
An electric machine (100) comprises a stator (112) and a rotor (114a, b) mounted for rotation about a rotor axis (120) with respect to the stator. Permanent...
Flux controlled PM electric machine rotor
A flux-regulated permanent magnet machine (PMM) includes a stationary portion and a rotating portion. The stationary portion includes a plurality of...
Alternator stator lead and terminal insulator assembly
One possible embodiment could be a stator lead and terminal insulator assembly for use in an alternator comprising of a top plate having a top surface and a...
Inverter-integrated electric compressor
A control circuit board (25) configuring an inverter (21) serves as a thermally-conductive substrate. One surface of the control circuit board (25) is installed...
Electric motor arrangement for a medical, especially dental, tool holder
An electric motor arrangement for a medical, especially dental, tool handle, which is extremely compact and resistant to sterilizing temperatures due to a...
Stepping motor with snapping front boss and securing pins
A structure reliably secures a stepping motor to a circuit board. The stepping motor has an axially protruding boss portion accommodating a shaft in the inside,...
Control unit for a power tool
A power tool includes a brushless DC motor housed inside an upper body of the tool housing and a control unit housed inside a handle of the housing, the control...
Water pump motor, and water pump using same
Provided is a water pump motor that implements a waterproof structure of a motor using a cover to seal a stator, and a water pump using the same. The water pump...
Component configured to stiffen an electric motor assembly
An apparatus includes a first component and a second component. The second component is located at a first position. The second component includes a first...
Electric machine having a power connection unit
An electric machine has a stator which carries a polyphase coil winding, wherein coil ends are connected in a predetermined manner to a plurality of electric...
Brushless motor, disk drive apparatus and brushless motor manufacturing
A brushless motor includes a plate-shaped armature and a magnet facing either one of a top surface and a bottom surface of the armature. An inner peripheral...
Amorphous stator, and electric motor using same
Provided is an amorphous stator for use in a high-power, high-speed electric motor, and an electric motor using the amorphous stator, in which amorphous alloy...
An electrical machine is provided, comprising a stator (8) and a rotor (9). The stator comprises slots (1, 2) for receiving a coil of an electrical winding. The...
Wind turbine generator and maintenance of its main bearing
A generator for a wind turbine is proposed. The generator has a stator, a rotor having a rotor housing surrounding the stator, and a main bearing to support the...