AcclaimIP-ad

Match Document Document Title
US20140103860 POWER CONVERTER AND BATTERY CHARGER USING THE SAME  
A power converter including: a transformer in which first and second voltages are induced; a full-bridge circuit including parallel-connected first and second arms each including series-connected...
US20130051082 SWITCHING POWER SUPPLY  
Disclosed herein is a switching power supply including: N sub switching power supplying unit each converting a direct current (DC) power supplied from a power source into an alternate current (AC)...
US20130194829 INVERTER OUTPUT RECTIFIER CIRCUIT  
In a power source of a welding system, an inverter rectifier output circuit and method for reducing the blocking voltages across saturable reactors associated with a rectifier coupled to a...
US20130194828 INVERTER OUTPUT RECTIFIER CIRCUIT  
In a power source of a welding system, an inverter rectifier output circuit and method for reducing the blocking voltages across saturable reactors associated with a rectifier coupled to a...
US20150103563 AUTOMATIC TIMING ADJUSTMENT FOR SYNCHRONOUS RECTIFIER CIRCUIT  
A circuit includes a conduction detector configured to monitor conduction of a body diode of a synchronous rectifier switch relative to a predetermined threshold and to generate a detector output...
US20130343092 DC/DC CONVERTER WITH SELECTABLE COUPLING RATIO AND POWER INVERTER USING THE SAME  
The DC/DC converter has a full bridge circuit, a transformer and a rectifying unit. The full bridge circuit is connected to a source DC voltage. The transformer is connected to full bridge circuit...
US20120120683 FULL BRIDGE PHASE SHIFTED POWER SUPPLY WITH SYNCHRONOUS RECTIFICATION AND CURRENT DOUBLER AND METHOD FOR DYNAMICALLY ADJUSTING DELAY PARAMETERS THEREOF  
A full bridge phase shifted power supply with synchronous rectification and current doubler and method for dynamically adjusting delay parameters thereof mainly have multiple delay parameter...
US20150043246 PRIMARY SIDE NO LOAD DETECTION AND SHUTDOWN CIRCUIT IN AN ISOLATED DRIVER  
A no load detection and shutdown circuit in an isolated driver is provided. A no load condition is detected by primary side evaluation of a reflected voltage. If a determination is made that a no...
US20130208512 Method for controlling a series resonant DC/DC converter  
The invention relates to a method for controlling a series resonant DC/DC converter. The method comprises the steps of: defining a switching period TP having a first half period TA and a second...
US20120287678 NON-ISOLATED RESONANT CONVERTER  
A non-isolated resonant converter is provided. The provided non-isolated resonant converter includes a switch circuit, a resonant circuit and a rectifying-filtering circuit. The switch circuit,...
US20150117062 HIGH EFFICIENCY PFC POWER CONVERTER  
A power factor correction (PFC) power converter is disclosed that converts AC input power to DC output power. A single stage of the PFC power converter performs both the DC-DC power conversion and...
US20080247194 RESONANT CONVERTER SYSTEM AND CONTROLLING METHOD THEREOF HAVING RELATIVELY BETTER EFFICIENCY  
The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter and a hybrid control apparatus...
US20140153290 DC/DC CONVERTER WITH VARIABLE OUTPUT VOLTAGE  
A DC/DC converter includes a transformer having a primary winding electrically connected to a resonant network and a secondary winding having a plurality of taps including a common tap, a first...
US20090097280 RESONANT CONVERTER SYSTEM HAVING SYNCHRONOUS CONTROL CIRCUIT AND CONTROLLING METHOD THEREOF  
The configurations of a resonant converter system and a controlling method thereof are provided. The proposed resonant converter system includes a resonant converter receiving an input voltage for...
US20060250828 Inverter power electronics design  
An inverter design with makes use of an integrated power module in place of discrete transistors. The use of an integrated power module facilitates the creation of a field replaceable component...
US20110261591 CONVERTER FOR SINGLE-PHASE AND THREE-PHASE OPERATION, D.C. VOLTAGE SUPPLY AND BATTERY CHARGER  
A Converter (1a.1c) for single-phase and three-phase Operation which comprises a three-phase rectifier to which three coils (La, Lb, Lc) are connected on the mains side is described. A first coil...
US20110176333 Power Converter with Isolated and Regulation Stages  
In a power converter, the duty cycle of a primary winding circuit causes near continuous flow of power through the primary and secondary winding circuits during normal operation. By providing no...
US20120155119 POWER CONVERTER INTEGRATED WITH FLYBACK CONVERTER  
There is provided a power converter integrated with an auxiliary converter. The power converter includes: a flyback converter converting an input power of a power supply input terminal into a...
US20150049517 CONVERTER AND METHOD FOR REDUCING A VOLTAGE OF NODE THEREOF  
A converter and method for reducing voltage of node thereof are disclosed herein. The converter includes a first transmitting circuit and a second transmitting circuit. The first transmitting...
US20110051462 POWER FACTOR IMPROVEMENT CIRCUIT  
An over-voltage protection circuit of the invention is connected with a DC-DC converter having a structure in which a plurality of switching elements is serially connected to a direct current...
US20130107581 VOLTAGE CONVERTER  
A voltage converter (1a . . . 1g), in particular a resonant converter for converting an input AC or DC voltage (UE) into an output DC voltage (UA). On the secondary side, a first secondary...
US20100315839 ENERGY RECOVERY SNUBBER CIRCUIT FOR POWER CONVERTERS  
An energy recovery snubber circuit for use in switching power converters. The power converters may include a switch network coupled to a primary winding of an isolation transformer, and...
US20130201726 RESONANT POWER CONVERTER HAVING SWITCHED SERIES TRANSFORMER  
A multi-transformer LLC (resonant) power converter having at least two transformers including a first T1 and a second transformer T2 in series includes a switch network configured for receiving...
US20130322126 Soft-Switching Inverter  
An inverter with soft switching is used for a high step-up ratio and a high conversion efficiency. The inverter includes an isolation voltage-quadrupling DC converter and an AC selecting switch....
US20150180357 SYNCHRONOUS RECTIFIER AND A METHOD FOR CONTROLLING IT  
A synchronous rectifier comprises at least one rectification switch (102, 103), and a control circuit (104) for controlling the at least one rectification switch to allow unidirectional current...
US20110273909 FULL-BRIDGE PHASE-SHIFT CONVERTER WITH AUXILIARY ZERO-VOLTAGE-SWITCHING CIRCUIT  
A full-bridge phase-shift converter with an auxiliary zero-voltage-switching circuit includes a full-bridge switching circuit, an isolated transformer, an auxiliary zero-voltage-switching (ZVS)...
US20150091460 Power Supply Circuit and Luminaire  
According to one embodiment, there is provided a power supply circuit including a direct-current voltage source, a bridge circuit, a transformer, and a rectifying and smoothing circuit. The bridge...
US20130336013 DC-to-DC Converter and Method for Operating a DC-to-DC Converter  
The disclosure relates to a method for operating a DC-to-DC converter with two bridge arrangements with bridge switches, of which at least one is in the form of a switchable bridge arrangement...
US20130135904 CONVERTER CIRCUIT  
A converter circuit includes a transformer having primary windings and at least one secondary winding, a rectifier circuit connected to the secondary winding, and oscillating circuits connected to...
US20140078783 FULL-BRIDGE QUASI RESONANT DC-DC CONVERTER AND DRIVING METHOD THEREOF  
A full-bridge quasi-resonant DC-DC converter is provided, including a transformer having a primary winding and a secondary winding, a full-bridge converting circuit electrically connected with the...
US20140177283 POWER SUPPLY  
There is provided a power supply including a direct current (DC) to DC converter supplying main power to a load, and a sub converter connected to the DC to DC converter and reducing output loss,...
US20140157015 CLAMP CIRCUITS FOR POWER CONVERTERS  
A power converter comprises an input port configured to receive a source of power, an output port configured to provide output power, and a bridge circuit coupled to the input port. The bridge...
US20150146455 CURRENT CONTROL FOR DC-DC CONVERTERS  
A DC-DC converter having a primary side comprising at least three actively switched primary voltage bridges with several active switches for converting a DC input voltage into primary alternating...
US20120044718 POWER CONVERTERS  
A power converter for delivering power to a load at a regulated voltage 11 includes a regulating stage receiving an unregulated supply 10 and having a main transformer 18. Switches 16a and 16b are...
US20150244279 ELECTRIC POWER CONVERSION CIRCUIT SYSTEM  
There is provided an electric power conversion circuit system having a primary side electric power conversion circuit, a secondary side electric power conversion circuit, and a control circuit....
US20130329463 HIGH EFFICIENCY AND FAST RESPONSE AC-DC VOLTAGE CONVERTERS  
The present invention discloses circuits and methods for high efficiency and fast response AC-DC voltage converters. In one embodiment, an AC-DC voltage converter can include: (i) a first stage...
US20140176086 CAPACITOR CHARGER SYSTEM, POWER MODULATOR AND RESONANT POWER CONVERTER  
A capacitor charger system has a resonant power converter to connect to a capacitor via a rectifier. The resonant power converter has a switch-based bridge network, an internal transformer, a...
US20120092899 DYNAMIC CONVERTER TOPOLOGY  
Methods and apparatus of dynamic topology power converters are provided. One method includes monitoring at least one variable of the power converter and based on the at least one monitored...
US20140043861 CONTROLLING AN ADAPTER TRANSFORMER VOLTAGE  
An adapter for electrical power that includes a rectifier coupled to a transformer with a primary coil and a secondary coil. The secondary coil includes a first end tap, a second end tap, and a...
US20140204617 POWER CONVERTER WITH CURRENT FEEDBACK LOOP  
In a power converter, a deviation calculator calculates, in each cycle, a deviation between a value of an input electrical parameter of a switch circuit and a target value selected by a selector...
US20130027981 HOLD-UP TIME EXTENSION CIRCUIT FOR A POWER CONVERTER  
A power system has a power converter adapted for converting a first input voltage at an input thereof to a first output voltage at an output thereof, and a hold-up time extension circuit...
US20120229034 DRIVING CONTROLLER AND FULL-BRIDGE CONVERTING CIRCUIT  
The present invention provides a full-bridge driving controller and a full-bridge converting circuit, which have the function of soft switch, to provide a DC output voltage. The present invention...
US20140146571 PULSED POWER GENERATOR  
An active voltage drop control-type pulse power generator includes power stages, a power inverter, a power loop, a control inverter, a control loop, and a compensation unit. The power stages...
US20120163036 POWER SUPPLY UNIT SUPPLYING STANDBY POWER BY SHARING SWITCH OF MAIN CONVERTER  
There is provided a power supply unit supplying a standby power by sharing a switch of a main converter. The power supply unit includes: a main converter, and a standby converter. The main...
US20150029761 VOLTAGE CONVERTER  
The invention relates to a voltage converter (100), including: a plurality of two-way conversion cells (303), each cell comprising a primary circuit (307, Wp), and a secondary circuit (308, Ws)...
US20150098251 ARC FAULT PROTECTION FOR POWER CONVERSION  
An apparatus and system for arc fault protection during power conversion. In one embodiment, the apparatus comprises a power converter comprising a first and a second pair of DC input terminals,...
US20140009969 CURRENT SOURCE INVERTER AND METHOD FOR CONTROLLING CURRENT SOURCE INVERTER  
In controlling switching elements of a current source inverter, a switching loss in the switching element is prevented according to a normal switching operation for a commutation operation,...
US20140112024 HIGH VOLTAGE SWITCHING LINEAR AMPLIFIER AND METHOD THEREFOR  
A switching linear amplifier has a DC-DC converter to increase a low input DC voltage to a first high voltage DC. A high voltage high frequency inverter is coupled to the DC-DC converter to...
US20110103099 SWITCHING CONTROL METHOD OF TRANSFORMER COUPLED BOOSTER  
Provided is a switching control method of a transformer coupled booster to suppress an increase in energizing current in a transformer of the transformer coupled booster and downsize the...
US20150092451 POWER CONVERTERS  
A power converter for converting input power to output power includes a first transformer circuit, a second transformer circuit, and balance circuitry. The first transformer circuit includes a...