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Phase adjustment circuit of power converter, power converter, and control
A phase adjustment circuit of a power converter, the power converter, and a control method of the power converter are provided. The control method includes...
Controller of the power inverter circuit and a control method
A highly accurate control is achieved in such a way that a timing value is generated from a differential control amount calculation result and a filter...
Circuit and method for controlling a switching transistor of a switching
A control circuit for controlling a switching transistor of a switching regulator includes a hysteresis comparator circuit comparing a feedback voltage...
Semiconductor device and power conversion device
A switching device includes a power semiconductor chip, and a drive circuit which drives the power semiconductor chip. In the power semiconductor chip, a path...
Power converter with automatic on-time extension function and operating
A power converter is disclosed. The power converter includes a comparator and a timing generator. The comparator compares a first input signal with a second...
Switching circuit including DC-DC converter cooperating with a high
voltage supply and related methods
A switching circuit may include a first series diode, a second series diode, a first shunt diode coupled to the first series diode at a first control node, and...
Current generating circuit, current generating method, charge pumping
circuit and charge pumping method
A current generating circuit, which comprises: a first capacitor, comprising a first terminal and a second terminal; a second capacitor, comprising a first...
Method and apparatus for load switch controller with tracking to support
A power control device can generate control signals to control operation of power sources. At least one of the control signals may be referenced to an...
Systems and methods for reducing electromagnetic interference using
switching frequency jittering
System and method are provided for regulating a power converter. The system includes a signal processing component configured to receive a first input signal...
Adaptive AC power exchanger
An adaptive AC power exchanger generates stable 120 VAC 60 Hz power from variable grid input power nominally at 220 VAC and 50 Hz. The exchanger includes an...
Switching power conversion circuit and power supply using same
A switching power conversion circuit having a two-stage power circuit topology and capable of performing power factor correction is disclosed. In a case that...
Connecting a photovoltaic array at a high open circuit voltage
For connecting a PV array via an inverter to an AC power grid, at first a DC link at the input side of the inverter is pre-charged from the AC power grid. A...
Active snubber topology
Exemplary embodiments are directed to an snubber circuit and a power converter having an active circuit. The snubber circuit includes a series connection of a...
Power factor converter with nonlinear conversion ratio
The present invention provides a power-factor converter with nonlinear conversion ratio, wherein the power-factor converter includes a first inductor, a second...
Method to minimize input current harmonics of power systems such as ESP
Disclosed is a method for the improvement of the line quality in a system, in which a common feeding (1), via at least one distribution transformer (3), feeds...
Heat engine for converting low temperature energy to electricity
The disclosure relates to heat engines that operate using low temperature differentials. A Stirling engine is modified to provide a new heat engine that has no...
Kinetic energy harvesting methods and apparatus
A system, method, and apparatus for kinetic energy harvesting are disclosed. An example kinetic energy harvesting apparatus includes a tubular-shaped magnet...
Vibration transducer and actuator
Disclosed herein are multiple embodiments of a vibration transducer and actuator which combine an upper piece, a lower piece, a permanent magnet, an...
Cleavage method, rotor manufacturing method, and cleavage apparatus
A method for cleaving a plate-shaped workpiece formed with two or more linear recesses into three or more parts includes: a first positioning step of holding...
Brush motor and cooling fan incorporating the motor
A brush motor includes a stator and a rotor. The stator includes multiple magnets attached to an inner surface of a stator housing and a brush assembly fixed...
Apparatus, brush holder and system for monitoring brush wear
An apparatus, brush holder and system are provided. The apparatus includes a main body configured for attachment to a brush holder, and a proximity sensor on...
System and method for controlling motor
Provided are a system for controlling a motor and a method thereof. The system includes: a data storage unit in which data relating to a thermal equivalent...
Systems and methods for direct winding cooling of electric machines
A system and method for cooling electric machines using direct winding heat exchangers (DWHX) is disclosed. The system can comprise a plurality of DWHXs...
Rotor assembly with heat pipe cooling system
An electric motor cooling system is provided in which at least one heat pipe is captured within at least one hollow region within the motor's rotor shaft. An...
Case of electric rotating machine
A case of an electric rotating machine, includes: a cooling passage which is provided inside the case along a circumferential direction of the case and through...
Air cooling of a motor using radially mounted fan
A motor cooling system is provided comprising an electric motor including a rotor having first and second axial ends, and a stator having first and second axial...
Thin-walled housing having force transmission elements that guide cooling
A double-walled cooling housing (1) for an electrical machine (13). The cooling housing (1) comprises an inner housing (3), an outer housing (5) and a force...
Devices and systems for generating sustainable energy from traffic
A device that is installed underneath a predetermined surface to harness gravity from the weight of overpassing traffic to produce and amplify mechanical...
Hybrid geothermal power plant
The present invention provides a hybrid geothermal power plant, comprising a photovoltaic module for generating direct current electrical power, a geothermal...
In-wheel motor and in-wheel driving device
An in-wheel motor includes: a motor rotor installed inside a wheel of a vehicle; and a plurality of motor stators installed on the circumference of the motor...
Rotation apparatus including motor and speed reducer
In a rotation apparatus including a motor and a speed reducer, the speed reducer includes a casing, an internal gear integrated with the casing, a planetary...
Brushless motor and method of manufacturing thereof
A brushless motor includes a stator having a stator core, a rotor, a circuit board, a board holder for holding the circuit board, a motor housing having a notch...
Electric machine module cooling system and method
Some embodiments of the invention provide an electric machine module including a housing that defines a machine cavity. A coolant jacket can be at least...
The electric motor is the electric motor that includes a shaft part that rotates around a rotation shaft and a casing that accommodates at least part of the...
A motor structure includes a first silicon steel seat, at least one insulation support and a second silicon steel seat. The first silicon steel seat has a...
End winding corona protection
An end winding corona protection including a winding of a rotating electric machine, having a conductor and a groundwall insulation surrounding the conductor,...
Motor power distribution apparatus
A motor power distribution apparatus includes first insulating holders and second insulating holders. The first insulating holders are disposed to retain every...
Winding for a rotating electric machine and method for manufacturing same
A winding for a rotating electric machine includes conductive bars having straight parts and end windings and terminal portions of the end windings that are...
Motor and washing machine having the same
A washing machine with a motor having a structure with improved performance. The washing machine includes a body, a tub disposed in the body, a drum rotatably...
Rotator coil and method of manufacturing the same
A rotator coil is provided that includes a coil conductor and a mica tape wound a plurality of times around an outer periphery of the coil conductor. The mica...
Radial flux alternator
An energy conversion system includes rotor, stator and shell components configurations for increasing power efficiency and improving replacement and repair...
Modular micro wind turbine
An improved magnetic generator has been developed that is particularly suitable for creating modular micro wind turbines, although other power generation...
Permanent magnet rotor brushless motor
A rotor for a permanent magnet brushless motor includes a shaft, a rotor core fixed to the shaft, and magnets embedded in the rotor core. The rotor core defines...
Method of manufacturing a transverse flux electrical machine rotor
A method of assembling a rotor portion adapted to be used in a rotatable transverse flux electrical machine (TFEM) is presented, the method comprising...
Laminated core of motor having structure suitable for insulation coating
Disclosed herein is a laminated core of a motor including: a first core sheet including a first rounded core base, a plurality of first teeth which are radially...
An actuator includes: a coil; a permanent magnet rotor secured to and rotatably supported by an output shaft inside the coil; a bobbin made of a non-magnetic...
Stator tooth assembly for axial flux stator and methods of assembling the
In one aspect, a three-phase axial flux stator is provided. The stator includes a plurality of stator modules oriented in an axial direction, and each of the...
System and method for transferring electric energy to a vehicle using
segments of a conductor arrangement which...
A system and method for transferring electric energy to a vehicle includes at least one electric conductor arrangement for producing an alternating...
Controlling inductive power transfer system
An inductive power transfer system comprises a primary unit operable to generate an electromagnetic field and at least one secondary device, separable from the...
Energy access control
A method of controlling access to an electrical power network, comprising: receiving a power network access rule from a power network, the power network access...