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Trailing edge detector using current collapse
A controller for a power converter includes an edge detection circuit including a first circuit coupled to coupled to compare a voltage sense signal...
Regulation for power supply mode transition to low-load operation
A switching power converter includes a controller configured to transition from a first operating mode to a second operating mode by determining the operating...
Phase-shifting a synchronization signal to reduce electromagnetic
A power supply with reduced electromagnetic interference (EMI) is described. This power supply includes cascaded stages with switched-mode power-supply circuits...
Isolated power conversion apparatus and method of converting power
An isolated power conversion apparatus includes an isolation transformer and an auto charge pump circuit. The isolation transformer has a primary side and a...
Boost type direct current output control circuit device controlled by
A direct current power source includes an electric control unit (ECU101) for converting a portion of input direct current electric energy into alternating...
Method for identifying a short-line fault or a line interruption for a
switched inductive load
A method identifies a short-line fault or line interruption in a circuit configuration having a series circuit of inductive load and controllable switching...
ZVS DC/DC converter for converting voltage between a battery and a DC link
in a hybrid energy storage system...
The bi-directional DC/DC converter has zero voltage switching (ZVS) soft switching capability resulting in a higher efficiency, and provides reduction of the...
Control method and control apparatus using control signals to control
states of transistors in BUCK-BOOST topology
A control method and a control apparatus are provided. The control method and apparatus are applied to a BUCK-BOOST topology. The method specifically is,...
Battery compensation system using PWM
Compensation system adapted for use with a battery-powered, PWM-driven portable electronic device to enable consistent power to the device load despite battery...
Transfer function generation based on pulse-width modulation information
Exemplary embodiments are related to generating an error correction voltage and/or a compensation voltage based upon pulse-width modulation information. A...
Electric power conversion device
An electric power conversion device of an embodiment includes the electric power conversion device expressed as an equivalent circuit including, a power supply,...
DC-DC voltage converter and conversion method
A DC-DC converter comprises a capacitor arrangement and a switching arrangement for controlling coupling of the capacitor arrangement to a converter input...
Charge pump circuit
A charge pump circuit is disclosed. The charge pump circuit includes a first circuit powered by a first supply voltage and configured to adjust a voltage of an...
High power factor DC power supply with variable gain converter and
fast-averaging control loop
A high power factor DC power supply with low output ripple uses a variable gain DC to DC converter and fast averaging control loop to eliminate the need for a...
Power factor corrector timing control with efficient power factor and THD
Methods, devices, and integrated circuits are disclosed for controlling switch timing in a power factor correction timing switch. In one example, a device is...
Electric power converter to reduce or eliminate erroneous power module
A processor unit in an electric power converter executes detection of an overheating predicted state that is a stage prior to overheating of the IGBTs, a short...
Capacitor discharging method and discharging circuit thereof
In one embodiment, a method of controlling a capacitor discharge for a switching power supply, can include: (i) generating a first voltage signal from a voltage...
Ripple cancellation converter with high power factor
Provided are circuits and methods for use with a power supply that provides a main output including a main DC voltage having a first AC voltage ripple, or a...
Shared bootstrap capacitor for multiple phase buck converter circuit and
A multiple phase dc to dc converter with a shared bootstrap capacitor. In an embodiment, a multiple phase buck converter is disclosed including a plurality of n...
Driving apparatus for driving switching elements of power conversion
A driving apparatus for driving switching elements of a power conversion circuit. In the apparatus, a first determination unit determines whether or not a dead...
Actuator and electric beauty appliance
An actuator includes a movable body including a cylindrical magnet having on a circumferential surface thereof alternating N and S pole faces along a...
Direct current motor, coil winding method for direct-current motor, and
method for manufacturing direct-current...
A direct-current motor includes a yoke having six magnetic poles, an iron core having nine teeth, first and second coils wound about each tooth in directions...
A synchronous motor includes a stator with a stator winding, and a rotor on which magnetic poles made of permanent-magnetic material are formed, each pole...
Hybrid induction motor with self aligning permanent magnet inner rotor
A hybrid induction motor includes an inductive rotor and an independently rotating permanent magnet rotor. The inductive rotor is a squirrel cage type rotor for...
Additive manufacturing of a component having a laminated stack of layers
A method of making a component comprises producing a layer of sheet material including an aperture over a movable support. An insulating material is deposited...
Constant force shaft grounding brush holder
The present invention relates to a brush holder assembly for use with rotating electric machines. The brush holder assembly is used as a grounding mechanism to...
Motor comprising a plate module
A motor is provided, the motor including a motor housing, a stator mounted inside the motor housing and including a stator core and a coil wound on the stator...
Rotating electric machine having a cooling device and cooling liquid
A rotating electric machine includes a rotor, a stator, a cooling device and a pair of cooling liquid collection tanks. The stator includes an annular stator...
Rotary electric machine
A rotary electric machine according to the present invention includes a stator including a stator core and stator coils, a rotor provided rotatably with a gap...
Provided is a double-rotor type motor including: a stator; a double-rotor that is positioned at a certain gap on an outer surface and an inner surface of the...
Return mechanism, acceleration mechanism, power generator, transmitter,
and switching arrangement
A return mechanism is achieved which requires only a small force for operation. In one aspect of the present invention, a return mechanism (10) includes: a...
A wind turbine has a rotor and a generator. A planetary transmission is arranged between the rotor and the generator, the planetary transmission being...
Induction machine power connection box including power supply for
auxiliary devices including auxiliary cooling...
An alternating current (AC) induction machine, such as a medium voltage induction motor, includes an auxiliary electrical connection box that is incorporated in...
Bearing seal for fan motor
Disclosed is a fan motor includes: a first bracket having a middle part through which a rotary shaft penetrates and an upper bearing insertion space to which an...
Interface for the transmission of electrical power to a motor-compressor
An interface for transmitting electrical power to a motor of a motor-compressor is provided. The interface may include a receptacle having a first end portion...
Motor connecting member and motor device
A motor connecting member, which connects a motor winding and a terminal block, includes a terminal to be connected to the terminal block, a winding connecting...
Method for connecting wire material and twisted wire, and stator of
electric motor or generator
The present invention is directed to connection technology for providing a sufficient connection strength in bonding a wire material and a twisted wire each...
Slot liner for an electric machine
A slot liner for a stator and/or a rotor of an electric machine includes a body configured to be received within a stator slot and/or within a rotor slot. The...
Armature winding of rotating electrical machine
According to one embodiment, there is provided a 3-phase 2-pole 2-layer armature winding, housed in 72 slots provided in a laminated iron core, a winding of...
Rotary electric machine
A rotary electric machine includes: a stator core that is formed of a plurality of split core pieces that are annularly arranged therein, coil conductors being...
Housing less transverse flux electrical machine
A housingless transverse flux electrical machine (TFEM) includes a pair of halves adapted to receive therein a plurality of cores and a coil therein. The halves...
Coil wire for rotating electrical machine and coil body
A coil wire for a rotating electrical machine forms a coil body wound on teeth of a stator for the rotating electrical machine and includes an element wire...
Stator for rotating electric machine
A stator includes an annular stator core and a stator coil. The stator coil is formed of electric conductor segments each of which is bent in its thickness...
DC electric motor/generator with enhanced permanent magnet flux densities
This disclosure relates in general to a new and improved electric motor/generator, and in particular to an improved system and method for producing rotary...
Motor and rotor thereof
A rotor having an improved structure capable of achieving enhanced durability is disposed in a motor, the rotor including a sleeve having a shaft hole, through...
Rotary electric machine
A rotary electric machine includes a rotor, and a stator. The rotor includes poles having slots and magnets. Each of the slots includes a first housing hole, a...
Rotor arrangement and electromechanical transducer having non-parallel
A rotor arrangement includes a support structure providing a mounting surface extending in an axial direction and a circumferential direction. The support...
Micro-channel heat exchanger for stator of electrical machine with supply
An electric machine has a stator that comprises a plurality of laminations with teeth and cooling apertures about a central opening. When the laminations are...
Apparatus and method for detecting foreign objects in wireless power
Aspects of the present invention relate to an apparatus and method for detecting foreign objects in a wireless power transmission system. This specification...
Wireless power transmitter and wireless power receiver
Disclosed is a wireless power transmitter that includes a resonator that provides charging electric power to a wireless power receiver and a metal layer spaced...