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Circuit arrangement with a rectifier circuit
A rectifier circuit includes first and second load terminals, a first semiconductor device having a load path and configured to receive a drive signal, and a...
System and method for controlling PCS voltage and frequency
The present invention discloses a system and a method for controlling PCS voltage and frequency, wherein the system comprises a reference voltage converter, a...
Isolation of secondary transformer winding current during auxiliary power
An electronic system and method include a controller to actively control power transfer from a primary winding of a switching power converter to an...
Electric-power conversion system
The number of constituent components is reduced so as to provide a small-size and inexpensive electric-power conversion system. The electric-power conversion...
A five-level rectifier includes at least one phase bridge arm that includes an upper-half and a lower-half bridge arm circuit modules. The upper-half bridge arm...
Power conversion device including noise suppression capacitor
A power conversion device including a power conversion portion that switches direct current voltage supplied by a positive line and negative line of a direct...
Power frequency converter and associated method
A power frequency converter and an associated method are provided to convert an AC input signal at a first frequency, such as a first frequency that is...
Power supply with output rectifier
A power converter for converting power from a first voltage level at an input terminal to a second voltage level across first and second output terminals, the...
Multiport DC-DC autotransformer and methods for controlling and using the
A multiport DC-DC autotransformer for interconnecting three or more DC systems. The autotransformer includes 2N-1 converters sequentially connected in series at...
Method and apparatus for digital control of a switching regulator
An on/off controller device includes a control circuit to generate a control signal to switch a power switch between an on state and an off state to transfer...
Power supply apparatus with extending hold up time function
A power supply apparatus with extending a hold up time function includes a transformer, a winding switching unit and a detection unit. The transformer includes...
Method and apparatus for implementing an unregulated dormant mode with an
event counter in a power converter
A control circuit for use in a power converter includes a drive signal generator coupled to generate a drive signal to control switching of a switch to regulate...
Adjustable resonant apparatus for power converters
An apparatus comprises a first series resonant inductor coupled to a switching network and a transformer, a first series resonant capacitor coupled to the...
DC/DC converter, electronic apparatus having the same and DC/DC conversion
A multi-output DC/DC converter, which may be included in an electronic apparatus, performs sync switching control using a simplified configuration. The DC/DC...
A regulator device includes: a plurality of regulators that are equipped in parallel between a power input terminal and a power output terminal and converts a...
A DC-DC converter includes first and second switching devices electrically connected in series between an input terminal and a ground terminal, third and fourth...
In a DC/DC converter, each channel operates under digital control using nonlinear control. The time interval between the time of turning ON of the switching...
Controllable on-time reduction for switching voltage regulators operating
in pulse frequency modulation mode
A switching voltage regulator includes a power stage for delivering output current to a load through an inductor. The power stage has a high-side transistor and...
Energy-based control of a switching regulator
A system and method are provided for controlling a switching voltage regulator circuit. An energy difference between a stored energy of a switching voltage...
Power converter controller with analog controlled variable current circuit
A bleeder controller for controlling a magnitude of a variable current conducted by bleeder circuitry between input terminals of a device is disclosed. The...
Boost converter circuit and control method thereof
A boost converter includes an inductor configured to have one terminal connected with an input power source; a switching element configured to be connected...
Direct-current power supply device
The present invention includes: a converter configured to convert the direct-current voltage of the rectifier to another direct-current voltage and supply to a...
Integrated circuit comprising voltage modulation circuitry and method
An integrated circuit comprising voltage modulation circuitry arranged to convert an input voltage level at an input node to an output voltage level at an...
Semiconductor device and method of manufacturing the same
A regulator includes a capacitor connected between a ground terminal and an output terminal at which a first voltage is supplied. The first voltage is higher...
Apparatus and methods for low voltage high PSRR systems
Provided herein are apparatus and methods for low voltage high power supply rejection ratio (PSRR) systems. A charge pump converts a supply voltage to a larger...
Bidirectional unisolated DC-DC converter based on cascaded cells
A DC-DC converter (200) comprising a first (201) and a second (202) variable voltage source, a capacitor (203), an alternating current filter (204), and...
High efficiency switched capacitor voltage regulator
A high efficiency switched capacitor voltage regulator circuit and a method of efficiently generating an enhanced voltage from an input voltage supply. An input...
Driving apparatus for driving power factor correction circuit
There is provided a driving apparatus for driving an interleaved power factor correction circuit including a first main switch and a second main switch...
Dual mode power supply controller with current regulation
A power conversion circuit includes a voltage boost circuit including a boost inductor configured to generate an output voltage in response to an input voltage,...
Battery charging system and method
A battery charging system includes a PFC converter which converts an alternating current input voltage which is input from a power supply to a direct current...
Method for regulating an output voltage
A method for regulating an output voltage of a converter is provided in which a switching frequency of a switching device is limited in response to a signal...
Soft-off control circuit, power converter and associated control method
A power converter having a soft-off control circuit and a variable reference signal generation module and associated method for controlling the power converter....
Start-up regulator for high-input-voltage power converters
A power converter system includes first and second input terminals; a converter connected to the first and second input terminals and including an output...
Soft-start circuit for switching regulator
A soft-start circuit for a switching regulator (e.g., a buck converter) in which the soft-start circuit supplies a DC ramp voltage to the switch regulator's...
Switched capacitor DC-DC converter with reduced in-rush current and fault
To reduce in-rush currents into a switched capacitor DC/DC converter and detect voltage and current faults, a converter controller is housed along with a...
Power control device and image forming apparatus including the same
A power control device and an image forming apparatus including the same are disclosed. A power control device meets the need for low power consumption by...
RF switching converter with ripple correction
This disclosure relates generally to radio frequency (RF) switching converters and RF amplification devices that use RF switching converters. In one embodiment,...
Induction generator and method for producing an induction generator
An induction generator (100) for a remote switch which comprises a U-shaped magnetic diverter (102) with first and second limbs as well as a coil core (104)...
Vibration energy harvesting using cycloidal motion
Some embodiments relate to an energy conversion device, comprising: a casing; an electromagnetic (EM) transducer disposed at one side of the casing; a round...
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...
Electrical rotating machine system or wind turbine system
An electrical rotating machine system that can be easily maintained and can provide improved power generation efficiency. The electrical rotating machine system...
Rotor and method for manufacturing the rotor
A rotor has a rotor core arranged to radially face a stator. The rotor core has an accommodation hole extending axially from an axial end face of the rotor...
Remote rotor parameter sensor for electric drives
A rotor parameter sensor is used for electric drives. A rotor of an electric engine or motor is monitored by a sensor sensing one or more physical observables...
Rotor for electric rotating machine and method of manufacturing the same
A rotor for an electric rotating machine includes a hollow cylindrical rotor core and a plurality of magnets. The rotor core has a plurality of magnet-receiving...
Rotating electric machine
Provided is a rotating electric machine that is capable of sufficiently cooling, by using a liquid coolant, electronic devices which are attached to a rotor....
Rotary-electric-machine temperature estimation system for vehicle
Provided is a rotary-electric-machine temperature estimation system for a vehicle. The temperature estimation system includes a rotary electric machine, a...
Voltage regulator device for rotary electric machine, bearing for rotary
electric machine and rotary electric...
A voltage regulator device provided in a bearing of a rotary electric machine of a motor vehicle. The regulator device comprises a support and at least one...
An induction generator for a radio switch having a magnet element as well as an induction coil with a coil core, characterized in that the coil core is...
An electric motor has a rotor and a stator. The stator has an endcap with two brush assemblies, two brush brackets for holding the brush assemblies and two...
Electric motor systems and methods
Electric motor systems and methods may provide highly efficient operation. The electric motor systems and methods discussed herein provide an oil filled motor...