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8964430 Active snubber circuit and power supply circuit  
An active snubber circuit for a switching power supply, in which a main switching element repeatedly operates an on-off operation so that current intermittently flows in a primary coil, has a...
8963533 High-voltage voltage divider and connector comprising said divider  
The present invention relates to a resistive voltage divider comprising a plurality n of resistive elements in a configuration wherein the angles m=n−1 between each pair of elements are between...
8964411 Method for DC-DC conversion using a DC electric power source  
The converter comprises an inverter powered by a DC current source. The inverter powers a conversion unit operating on the basis of controlled magnetic switching obtained by means of power diodes...
8964414 DC power supply including resonant circuit for reducing switching losses  
A DC power supply including a resonant circuit on a secondary side of a transformer suppresses a surge voltage during power recovery of diodes constituting a rectifier circuit, correctly estimates...
8964420 Zero voltage switching in flyback converters with variable input voltages  
The disclosed embodiments provide a system that operates a flyback converter. During operation, the system senses an input voltage for the flyback converter. Next, the system uses the input...
8964418 Ultra-low AC-DC power converter to mitigate energy emission  
An AC to DC converter system is disclosed in which a conversion circuit for converting an AC input signal to a DC output signal is operably coupled with a communication circuit designed for...
8964432 Apparatus and method for controlling circulating current in an inverter system  
A power conversion system is disclosed that provides multiphase power, including phase voltages for each phase of the multiphase power. The system comprises a plurality of inverters that generate...
8964434 Rectification circuit  
A rectification circuit includes a first input terminal, a first switch, an energy storage circuit, a first diode, a filtering circuit connected in series and in order to ground, a second diode,...
8964427 Adaptive online filter for DC offset elimination  
A phase angle detector with a PLL, a power converter, and a method for reducing offsets in an input signal, in which an adaptive offset processor selectively removes a DC offset component from the...
8963476 Synchronous machine with switching element in the excitation circuit  
A separately excited synchronous machine (1b1k) with an excitation circuit on the side of the rotor includes an excitation winding (3) and a power supply for the excitation winding (3) as well as...
8963373 Grid tie solar system and a method  
A grid tie system includes a plurality of solar panels, a plurality of inverters, wherein each of the inverters is in electrical communication with at least one of the solar panels to convert a...
8964421 Powering a synchronous rectifier controller  
The embodiments herein describe a switched mode power converter. In particular, the embodiments herein disclose a method for powering a synchronous rectifier controller that enables synchronous...
8963512 Power supply device and electric power conversion device using the same  
A comparator compares a voltage of a node into which electric current flows from a system of a first voltage and a reference voltage for maintaining the node at a second voltage. A step-up-type...
8964429 Inverter device and electric power tool  
An inverter device includes: an inverter circuit configured to perform ON/OFF operations with a preset duty cycle to convert a DC power into an AC power and output the AC power to an AC motor; and...
8964415 Circuits and methods for increasing power factor of switch mode power supply  
A switching mode power supply (SMPS) includes a rectifying device configured for converting a periodically varying input AC (alternating current) voltage into a DC (direct current) voltage, and a...
8963616 Circuit topology for a phase connection of an inverter  
A circuit for a phase connection of an inverter includes upper and lower bridge halves and respectively associated upper and lower bridge segments. Each bridge half has an outer switch and an...
8964438 Power converter with hold up  
A power converter providing required hold up for a primary converter, particularly a cycloconverter, without the required hold up capacity by an auxiliary converter including storage capacitors...
8964422 EMI frequency spreading method for switching power converter  
A controller of a switching power converter sets an actual turn-on time of a switch in the switching power converter in each switching cycle by selecting one of a plurality of valley points of the...
8963511 Controller for a switched mode power converter, a switched mode power converter and method of controlling the same  
A method of controlling a switched mode converter is disclosed in which the switching frequency varies in proportion to the square of the sine of the phase of the input AC supply. Thus the...
8964428 Power conversion device  
A power conversion device according to embodiments includes a plurality of switch groups, a plurality of inductors, and a snubber circuit. The switch groups are respectively provided for input...
8964435 Methods and systems for operating a power converter  
A power conversion system for providing power to an electrical grid is described. The power conversion system includes a power converter coupled to a photovoltaic (PV) array and configured to...
8963372 Inverter and power converter having inverter mounted therein  
Disclosed is an inverter having improved power conversion efficiency. The inverter (200) converts direct current power supplied from a plurality of direct current power supplies (V1, V2) having...
8964425 Power converter with controlled current source to reduce harmonic distortion  
A power converter including a rectifier stage connected to plural phases of a network delivering an input current at a determined fundamental frequency, a DC power supply bus and a bus capacitor...
8964426 Power supply and method of operation  
A switched-mode power supply (SMPS) and a method of control thereof is described, wherein the SMPS is operable to apply a spread spectrum modulation to a switching driver signal to reduce EMI in...
8964413 Two stage resonant converter enabling soft-switching in an isolated stage  
A resonant converter comprising: a controllable current source; a resonant tank circuit coupled to the current source; and an isolated buck-type converter coupled to the resonant tank circuit, the...
8966294 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...
8963479 Power conversion device for a rotary electric machine  
A power conversion device includes an inverter unit and a control unit. The inverter unit includes high SWs and low SWs for each phase of coils of a motor. The control unit, in a case that the...
8964387 Power converter arrangement and method for operating a power converter arrangement  
A power converter arrangement has two static switching element bridges that are alternatively operable and comprise static switching elements. The power converter arrangement has one housing that...
8966006 Data transfer apparatus and method  
Provided is a data transfer apparatus according to an embodiment of the present invention including: a power supply unit supplying operation power; a communication unit connected with an external...
8964419 Active voltage droop control-type pulse 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...
8964416 Switched mode power supply with voltage regulator  
A power supply and method for reliable turn-on of a switched mode power supply (SMPS) in which the same transformer is used for providing power from the primary side to both the main output of the...
8964433 Insulator integrated power supply  
A power scavenging device attaches to an overhead power cable and a support pole. The power scavenging device includes a non-conducting outer body and a first capacitor and a second capacitor that...
8964424 Power converter, control method thereof, and direct matrix converter  
A voltage control rate of an inverter has a DC component and an AC component. This AC component has a frequency which is six times a fundamental frequency of an AC voltage outputted by the...
8958219 Non-isolated inverter and related control manner thereof and application using the same  
A non-isolated inverter including a DC input-side, a capacitor connected in parallel with the DC input-side, an AC output-side connected in parallel with a load, and first and second bridge-arm...
8957607 DC-DC converter using hysteretic control and associated methods  
A control circuit used to control a DC-DC converter includes a duty cycle control unit to control a duty cycle of the DC-DC converter and a hysteretic control unit to maintain a voltage at an...
8958220 Power-saving voltage converter operation  
Whether a connector element electrically connected to a direct-current output of a converter that converts alternating current into direct current is connected to an external device may be...
8957547 Uninterruptible power supply  
An uninterruptible power supply (UPS) includes a rectifier, a buck converter, a solar energy module, a boost converter, a controller, and a power distribution unit (PDU). The solar energy module...
8957941 Enhanced power supply  
One embodiment is an enhanced power supply including electronic power supply circuitry within a housing. The enhanced power supply further includes one or more sockets operatively associated with...
8957660 Current balance circuit and multiphase DC-DC converter and current balance method thereof  
The present invention discloses a current balance circuit for a multiphase DC-DC converter. The current balance circuit comprises a current error calculation circuit, for generating a plurality of...
8958216 Method and apparatus for digital isolation using planar magnetic circuits  
A digital isolation circuit includes an encode circuit, a planar magnetic circuit, and a decode circuit. The encode circuit receives an input signal and divides the input signal into a first...
8958223 Compact high-power diode/thyristor rectifier architecture  
A Graëtz-bridge converter-rectifier in which at least one rectifier arm situated between a single AC terminal and a single DC terminal includes multiple unidirectional electronic components...
8957654 Monitoring method with function of correlation-based system identification  
A monitoring method with a function of correlation-based system identification applicable for a digitally controlled DC-DC converter system is revealed. The monitoring method includes a plurality...
8958224 Power converter  
A power converter can be configured of a first series circuit, formed from a first semiconductor switching element and a second semiconductor switching element connected in series to either end of...
8958218 System and method for power conversion for renewable energy sources  
An energy conversion system for use with an alternative energy source is disclosed. The alternative energy source can generate either an AC or a DC voltage. A first power converter is connected...
8958222 Modulation of switching signals in power converters  
There is provided a method and control system for reducing noise in a power converter by controlling a switching device in the power converter according to a modulation scheme. The switching...
8958221 Grid tied inverter, system and method  
A grid tied inverter connectable to an electricity grid having a DC to DC current fed push-pull inverter to generate a current waveform from a DC voltage source. The push-pull inverter includes a...
8957630 Reflected energy management apparatus and method for resonance power transmission  
Provided is a reflected energy management apparatus for resonance power transmission. The reflected energy management apparatus for resonance power transmission may include a source resonator...
8957653 Power control circuit and loop analyzing apparatus comprising same  
A power supply control circuit includes a main controller, a current detection unit electronically connected to the main controller, and a mode switch unit electronically connected to the main...
8958225 Electric power converter  
An electric power converter has a semiconductor module that has a switching element therein, cooling pipes that contact with heat radiating surfaces of the semiconductor module and cool the...
8958217 System for driving a piezoelectric load and method of making same  
A system for driving a piezoelectric load includes a direct current (DC) voltage source and a bi-directional DC-to-DC converter having a primary side coupled to the DC voltage source and a...