Match Document Document Title
US20120163050 POWER SUPPLY CIRCUIT WITH LOW STAND-BY LOSSES  
A circuit for converting an A.C. power supply voltage into a D.C. voltage, including: a first branch capable of providing a first power level; and a second parallel branch capable of providing a...
US20140140118 CONNECTION STRUCTURE AND INVERTER  
Two opening through which a refrigerant runs are connected by a first connecting pipe and a second connecting pipe. One end of the first connecting pipe is connected to a first opening by a planar...
US20140218974 USB POWER ADAPTER FOR AC AND DC POWER  
A USB power adapter for AC and DC power has a circuit board, a base and a top cover. The base and the top cover receive the circuit board therein. The circuit board has an AC conversion module, a...
US20130250635 CONTROL TECHNIQUES FOR PHOTOVOLTAIC POWER PLANTS  
A photovoltaic power plant includes solar cells and inverters that convert direct current generated by the solar cells to alternating current. The reactive powers generated by the inverters are...
US20110166486 Compact and light weight portable transducer massager  
An electric massager comprising an enclosure box that contains a reverse structure of audio speaker less a speaker diaphragm, the said reverse structure in the box comprising two metal plates...
US20130301301 POWER OVER ETHERNET TO USB ADAPTER  
A power adapter comprising a POE connector for receiving electrical power from the power lines of a POE cable, a transformer circuit and a USB connector for delivering electrical power to a USB...
US20140321178 TURN-OFF OVERVOLTAGE LIMITING FOR IGBT  
A turn-off overvoltage limiting for IGBT is described herein. The injection of a sample of the overvoltage across the IGBT in the gate drive to slow down the slope of the gate voltage decrease...
US20120001435 GENERATOR POWER CONDITIONING  
The present invention relates to electricity generating equipment, particularly off-shore generators for generating electricity from tidal streams, marine currents or wave motion. In a generator...
US20110260536 Efficient Power Conversion for Ultra Low Voltage Micro Scale Energy Transducers  
A power converter is provided for an energy harvesting system of a micro-scale electronic device. The power converter is configured to transfer electrical energy from an energy transducer to an...
US20140265584 Online Surveillance System to Protect Solar Power Plants  
A method and apparatus is disclosed that can monitor the solar power inverters in real-time both day and night, and generate surveillance alarms and actions when a solar power inverter is removed...
US20110187315 ENERGY-SAVING POWER ADAPTER/CHARGER  
An embodiment of the present invention is directed to a power device for an electronic device, such as a charger for a portable rechargeable device and/or an AC adapter. The power device includes...
US20140334194 Resonant Transition Controlled Flyback  
A new and useful method and inductive circuit is provided that provides a resonant transition control that involves shorting the winding of an inductor or transformer to delay the natural ringing...
US20130107598 SYSTEM AND METHOD FOR VAR INJECTION AT A DISTRIBUTED POWER GENERATION SOURCE  
A method to add locally generated real and reactive power to a power distribution grid including: generating or storing direct current (DC) power by distributed power source; converting the DC...
US20130250641 Method for Connecting a Photovoltaic Installation to a Power Supply  
The disclosure relates to a method for connecting a photovoltaic installation to a power supply grid, the photovoltaic installation comprising a photovoltaic generator, a direct voltage...
US20110181128 GRID-TIED POWER CONVERSION CIRCUITS AND RELATED TECHNIQUES  
Circuit topologies and control methods for a power converter and are described.
US20140146580 CABLE COMPENSATION CIRCUIT AND POWER SUPPLY INCLUDING THE SAME  
A cable compensation circuit compensates a voltage drop in a cable coupled between a power supply and a load. The cable compensation circuit includes: a node where a voltage that depends on an...
US20110019443 SERIES VOLTAGE COMPENSATOR AND METHOD FOR SERIES VOLTAGE COMPENSATION IN ELECTRICAL GENERATORS  
Series voltage compensator connected in series between an electrical generator and an electrical grid that comprises a filter and an electronic power converter per phase. The compensator generates...
US20120170340 Power Inverter  
A power inverter comprises at least a box-shaped housing; and a power module, a smoothing capacitor, a base plate made of a flat plate, and a rotating electric machine control circuit board...
US20130107597 POWER CONDITIONER  
A power conditioner that suppresses generation of voltage spikes in a part of a generated sinusoidal voltage waveform. An offset between the timing of chopping, which depends on whether the...
US20150145438 VARIABLE RESISTANCE DEVICE FOR REDUCED POWER DISSIPATION IN DIMMER COMPATIBILITY CIRCUITS  
A variable resistance device may be used in a dimmer compatibility circuit to reduce power dissipation in an integrated circuit of the dimmer compatibility circuit. For example, the integrated...
US20150145453 POWER CONVERTING CIRCUIT  
A power conversion circuit for supplying power to an inductive load, includes a switching circuit and an energy saving circuit. The inductive load is supplied with electrical power and the energy...
US20130286694 POWER ADAPTER AND ELECTRICAL CONNECTOR THEREFOR  
A power adapter and an electrical connector for the power adapter operate to provide power to an electronic device such as a laptop computer. The power adapter includes a switch and a circuit for...
US20130223116 CONTACTLESS CARD CLAMP CIRCUITS THAT COMPENSATE FOR REGULATOR REFERENCE VOLTAGE FLUCTUATIONS  
A contactless card includes an inductive circuit configured to send and receive signals, a rectifier circuit coupled to the inductive circuit and configured to generate a DC voltage from an AC...
US20140112039 OPERATING METHOD FOR AN INVERTER AND GRID FAULT TOLERANT INVERTER  
The disclosure relates to a method for operating an inverter that includes at least one bridge assembly that is actuated in a modulated manner for supplying electrical power to an energy supply...
US20130014455 SOLAR ROOFING SYSTEM  
A solar roofing shingle assembly includes an attachment panel configured for attachment to a roof deck and a solar shingle mounted to the attachment panel.
US20150131353 POWER SUPPLY DEVICE  
According to one embodiment, a power supply device includes a main circuit board including a switching circuit, a transformer board opposite the main circuit board and including a transformer, and...
US20140036560 CIRCUIT AND METHOD FOR MEASURING AVAILABLE POWER IN A WIRELESS POWER SYSTEM  
A resonant wireless power receiver that includes an electromagnetic resonator having one or more inductive elements that are arranged to form a receiver coil and a network of passive components...
US20130077276 COMPACT ISOLATED SWITCHING POWER CONVERTERS  
An isolated switching power converter includes a power isolation transformer having at least one primary winding, at least one secondary winding and a plurality of sides, a first power board...
US20150043260 POWER RECTIFIER USING TUNNELING FIELD EFFECT TRANSISTOR  
A power rectifier includes a stage having a first Tunneling Field-Effect Transistor (“TFET”) having a source, a gate, and a drain, a second TFET having a source, a gate, and a drain, a third TFET...
US20120201052 Measurement transducer  
A measurement transmitter connectable galvanically isolated relative to one another and the other components of the measurement transmitter, which is optimized as regards installation space and...
US20110013427 UTILITY GRID POWER AVERAGING AND CONDITIONING  
As system is disclosed for providing power averaging for the utility grids and more specifically to utilizing a unique EESU unit with the capability to store electrical energy over 24 hour periods...
US20120287691 Battery Substitute Device For Power Tools  
A battery substitute device for providing an alternative power source for battery operated ‘cordless’ tools and similarly powered appliances. The battery substitute device is generally shaped like...
US20120313443 SMART AND SCALABLE OFF-GRID MINI-INVERTERS  
A method and apparatus is disclosed for intelligently inverting DC power from DC sources such as photovoltaic (PV) solar modules to single-phase or three-phase AC power to supply power for...
US20110157945 Synchronous Rectifier Circuit  
A synchronous rectifier circuit rectifies an AC input voltage to produce a DC output voltage. The synchronous rectifier circuit comprises MOSFET switches coupled within the secondary transformer...
US20100315850 POWER INVERTER  
A power inverter is provided for converting DC power into AC power. The inverter may be operable to couple to two or more transformer modules each operable to convert at least a portion of the DC...
US20140321166 CONNECTING AN INVERTER IN A SOLAR POWER PLANT WITH SHIFTED POTENTIAL CENTER POINT  
The invention relates to a process of connecting an AC output of a transformerless inverter of a solar power plant to an internal AC power grid at an input side of a galvanic isolation, while an...
US20130121029 Connecting an Inverter in a Solar Power Plant with Shifted Potential Center Point  
The invention relates to a process of connecting an AC output of a transformerless inverter of a solar power plant to an internal AC power grid at an input side of a galvanic isolation, while an...
US20150009735 Transferring Electrical Power for Subsea Applications  
A method for transferring electrical power in the sea includes generating AC power, guiding, at least partially underwater, the AC power through a cable from a first end of the cable to a second...
US20080266915 Converter System Comprising Converter Modules That Can Be Plugged Together  
The invention relates to a modular converter system (2). According to the invention, the modular converter system (2) has a basic converter device (4) and at least one additional converter device...
US20110235381 ACTIVATION OF A SYNCHRONOUS RECTIFIER  
A rectifier bridge circuit is described for rectifying the phase voltage generated by a generator, including a positive half-bridge having multiple rectifier elements and a negative half-bridge...
US20150036399 COPY SYSTEM FOR COPYING PARAMETER OF INVERTER  
The present invention relates to a copy system for copying parameter of inverter configured to improve portability and convenience by copying parameter of inverter through synchronization...
US20130107584 Dynamic Mosfet Gate Drivers  
The embodiments herein describe a dynamic metal-oxide-semiconductor field-effect transistor (MOSFET) gate driver system architecture and control scheme. The MOSFET gate driver system dynamically...
US20100321964 Power Adapter Employing a Power Reducer  
A power adapter including a power reducer for no-load or light load applications and method of operating the same. In one embodiment, the power adapter includes a capacitor coupled to an input of...
US20130314966 POWER CONVERTER  
A power converter (100) comprises a cooler (20) having a cooling flow path (21) in which a refrigerant flows, a base plate (31) to which switching elements (32) are attached, a control circuit...
US20110044083 Adaptive Photovoltaic Inverter  
A DC to AC inverter unit used in a solar cell power system can include a controller capable of adjusting the inverter's minimal operating voltage to increase the inverter unit power capacity.
US20140198543 POWER SUPPLY WITH DC BREAKER SWITCH AND REDUCED REGULATED DC LINK VOLTAGE  
Generally, this disclosure provides circuits and methods to reduce and regulate DC link voltage in a power supply through the use of a DC breaker circuit. The breaker circuit may include a breaker...
US20110075459 Power Factor Correction Circuits, Systems and Power Supplies Operable With Different Input Voltages  
A cost effective solution for power factor correction in power devices operating at two widely separated input voltages comprises two unequal power rails. One power rail is optimized for operation...
US20140112032 WIND TURBINE FAULT DETECTION CIRCUIT AND METHOD  
A wind turbine fault detection circuit and method is disclosed herein. In a described embodiment, the wind turbine fault detection circuit comprises a magnetometer in the form of a hall-effect...
US20120057388 Solar Photovoltaic Inverters  
The invention relates to improved techniques for manufacturing power conditioning units (inverters) for use with photovoltaic (PV) modules, and to inverters manufactured by these techniques. We...
US20120195088 PORTABLE HAND HELD MULTI-SOURCE POWER INVERTER WITH PASS THROUGH DEVICE  
A portable hand held power inverter/converter having a pass through device for simultaneously sourcing A.C. and multiple voltage D.C. power consuming devices through a single D.C. power source...