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8854839 AC-to-DC power converting device  
An AC-to-DC power converting device includes: a filter for filtering an external AC input voltage; a rectifier for rectifying the AC input voltage filtered by the filter to output a rectified...
8854837 Boost converter for reducing voltage stress  
There is provided a boost converter capable of reducing voltage stress within each element thereof, without using a separate loss snubber circuit, by clamping a voltage applied to an output diode...
8854015 Current controller and generator system  
A current controller for controlling plural stator currents of plural stator windings of an electrical machine, in particular a generator, is provided, wherein the plural windings are separately...
8854018 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 feedback pin, a frequency limiting signal generator, and a gate...
8854840 Method and apparatus to improve dynamic response of the synchronous rectifying for resonant power converters  
A synchronous rectifying circuit for a switching power converter is provided. The synchronous rectifying circuit includes a power transistor, a diode, and a control circuit. The power transistor...
8854843 HVDC converter with neutral-point connected zero-sequence dump resistor  
A power electronic converter (30)is for use in high voltage direct current power transmission and reactive power compensation, the power electronic converter (30) including three phase elements...
8854842 Digital communication link between secondary side and primary side of switching power converter  
A switching power converter provides a communication link between a secondary side and a primary side of the switching power converter. During a messaging mode, the communication link enables...
8853884 Techniques for reducing no load power in electronic devices  
Systems and methods (“utility”) are provided for reducing the no-load (standby) power of power devices such as chargers for electronic devices and power converters for electronic devices. The...
8854807 Converter arrangement with an air cooling system  
A converter arrangement includes a housing having a first cooling air channel, at least one capacitor disposed in the housing, a fan for generating a cooling air flow, and a first power...
8854846 Method and apparatus for determining a fault current portion in a differential current  
When determining a fault current portion IF in a differential current idiff(t) measured by an inverter, an AC voltage uAC(t) applied to an AC output of the inverter is measured and a periodic...
8854845 System and method of over-voltage protection  
In one aspect, a method for over-voltage protection is provided. The method includes connecting a first winding of a saturable reactor to a direct current (DC) source; connecting at least one...
8854847 Power and management device and method  
A power management device comprises: an input for receiving a transient energy pulse; a first storage section and a second storage section for storing energy from the input; an output; a switching...
8854844 AC/DC converter with passive power factor correction circuit and method of correcting power factor  
An AC/DC converter includes a rectifier circuit and a power factor correction circuit. An input port of the rectifier circuit receives an alternate current. The power factor correction circuit...
8854004 Energy storage system and controlling method thereof  
An energy storage system and a controlling method thereof are provided. Accordingly, an operation mode of the energy storage system is stably changed. The energy storage system includes: a...
8854850 AC power supply apparatus  
In an AC power supply apparatus, first and second switching circuits connected in series to an input terminal to which a DC input power supply is connected include first and second rectification...
8854841 High-speed reflected signal detection for primary-side controlled power converters  
A controller for a power converter includes a clamping circuit, a switching circuit and a pulse generator. The clamping circuit is coupled to an input terminal of the controller for detecting a...
8853888 Multiple-input DC-DC converter  
A multiple-input DC-DC converter that is capable of power diversification among different energy sources with different voltage-current characteristics. The converter is capable of bidirectional...
8854849 Power-saving voltage converter system  
A voltage converter system having a converter and a connector system may include a control circuit that enables or disables the converter in response to the connection status of the connector system.
8854838 Power supply control device, power supply system and eletronic device  
An electronic device includes a power supply system and a load circuit connected to the power supply system. The load circuit mutually switches between the first mode and the second mode. In the...
8848406 Single-phase voltage type AC/DC converter, three-phase voltage type AC/DC converter, and stabilization control method  
A method and a single-phase voltage type AC/DC converting device and a three-phase voltage type AC/DC converting device arranged between a load and a distribution network. The converting devices...
8848398 Direct current power supply device  
In a direct-current power supply device that includes a smoothing capacitor C1, which performs a DC/DC converter operation, a transformer T1, a switching element Q1, a diode D2, a smoothing...
8848409 Multilevel converter and a control method for operating a multilevel converter  
A converter includes an active stage for converting an AC input voltage at an AC input into an intermediate DC voltage, and a DC/DC converter for transforming the intermediate DC voltage into an...
8848397 Magnetic integration double-ended converter  
A magnetic integration double-ended converter with an integrated function of a transformer and an inductor includes an integrated magnetic member having a magnetic core with three magnetic columns...
8848403 Compensation system for medium or high voltage applications  
A compensating system for a power system includes a compensator including semiconductor switch means, which compensator has phase legs which on a first side of the compensator defines AC inputs...
8848404 Power conversion system with transient event ride-through capability and method thereof  
An exemplary power conversion system is disclosed including a DC bus for receiving DC power; a line side converter electrically coupled to the DC bus for converting the DC power to AC power; and a...
8848400 System and method for reactive power regulation  
A system and method are provided for performing reactive power control. The system includes a power converter and a controller coupled to the power converter. The power converter is configured to...
8848407 Method in a voltage source chain-link converter, computer programs and computer program products  
A method in a voltage source chain-link converter. The method includes: detecting a failure of a device of one converter cell module; blocking a phase-leg including the failed position;...
8847564 DC/DC converter using synchronous freewheeling MOSFET  
A freewheeling MOSFET is connected in parallel with the inductor in a switched DC/DC converter. When the freewheeling MOSFET is turned on during the switching operation of the converter, while the...
8848399 Very high frequency switching resonant synchronous rectification  
A VHF switching power converter comprising one or more VHF switching frequency resonant synchronous rectifiers receives an output from an inverter and delivers a DC output to a load. The power...
8847430 Power flow control in a meshed HVDC power transmission network  
A meshed HVDC power transmission network comprises at least three HVDC converter stations interconnected in a first closed path by at least three transmission lines. A first DC power flow control...
8848327 Controller, controlling method, and solar cell  
Disclosed is a controller for controlling short-circuit across positive and negative terminals of a dye sensitized solar cell for converting a light energy into an electrical energy. The...
8848405 Highly efficient half-bridge DC-AC converter  
The invention relates to a DC to AC converter circuit. In particular, the invention relates to a half-bridge inverter for converting a DC to an AC voltage. The half-bridge inverter for converting...
8848401 Modular multilevel power electronic converter having selectively definable circulation path  
A power electronic converter for use in high voltage direct current power transmission and reactive power compensation includes at least one converter limb, which includes first and second DC...
8848410 Matrix converter  
A matrix converter includes input terminals, output terminals, a power conversion circuit, and a snubber circuit. The power conversion circuit includes bidirectional switches of which each...
8847562 Reactive power compensation in electrical power system  
A reactive power compensation system for compensating reactive power requirements in an electrical power system. The reactive power compensation system includes a static synchronous compensation...
8847512 Program start ballast having resonant filament heating circuit with clamped quality factor  
An electronic ballast is provided with a filament heating circuit having a Q factor clamped at a certain range of preheat frequency. An inverter circuit includes a controller and a pair of...
8848370 Inverter for vehicle  
An inverter for a vehicle is disclosed. The inverter for the vehicle illustratively includes: a power module provided with a power semiconductor device; a cooling module coupled to the power...
8847555 Fast charging device for an electric vehicle  
A device for charging a battery including a rectifier input stage configured to be connected to a power supply network and an inverter output stage configured to be connected to the battery, and a...
8848402 Power factor correction apparatus  
A power factor correction apparatus is applied to an alternating-current voltage apparatus and a rear end circuit. The power factor correction apparatus includes a power factor correction unit, a...
8848408 Discharge control device of electric power conversion system  
In an electric power conversion system having a discharge control device capable of discharging a voltage charged in a capacitor to a voltage of not more than a predetermined voltage, a linear...
8842448 Parallel-connected resonant converter circuit and controlling method thereof  
The configurations of a parallel-connected resonant converter circuit and a controlling method thereof are provided in the present invention. The proposed circuit includes a plurality of resonant...
8842452 3-phase high power UPS  
According to one aspect, embodiments of the invention provide power converter circuitry including an input including a plurality of input lines each configured to be coupled to a phase of a...
8842451 Power systems for photovoltaic and DC input sources  
A power conversion system for use with a photovoltaic (PV) power source may include a DC/DC converter for converting a first DC voltage into a second DC voltage, an isolation transformer, an...
8841787 Generator set adaptive droop control method  
A method of controlling a plurality of gensets during a failsafe condition is provided. The method may include operating one or more of the gensets according to a modified isochronous control...
8842446 ***WITHDRAWN PATENT AS PER THE LATEST USPTO WITHDRAWN LIST***
DC-DC converter
 
A controller controls a voltage-source power converter and a current-source power converter based on a detection value of a rail voltage input to the voltage-source power converter and a detection...
8839509 Method for manufacturing electronic apparatus  
Multiple high-voltage side and low-voltage side electric conductors are formed from one sheet of a conductive plate in such a way that the multiple electric conductors are arranged in parallel to...
8842450 Power converter using multiple phase-shifting quasi-resonant converters  
A resonant power converter draws current from a source that provides a supply current. Multiple quasi-resonant converters are interleaved and each quasi-resonant converter receives the supply...
8842453 Converter system and control method thereof  
A control method of a converter system includes: sampling a current of each three-phase winding to obtain a real-time current of each converter; obtaining a mean current by averaging the real-time...
8842456 Analog controller for inverter  
An analog controller is disclosed. The controller has a maximum power point tracking unit and a power factor adjusting unit. The maximum power point tracking unit generates a maximum power...
8842449 LLC resonant converter with lossless primary-side current feedback  
An LLC resonant converter implements a primary-side current feedback scheme. The LLC resonant converter includes an isolation transformer having a primary winding and at least one secondary...