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| Application No. | Application Title | Issue Date |
| 20120126736 | Bootstrapped High-Side Driver Control Without Static DC Current for Driving a Motor Bridge Circuit A motor driver circuit for driving the gate node of a high-side driver transistor to a boosted voltage from a charge pump draws little or no static current from the charge pump. The gate node is pulled to the boosted voltage by a p-channel pullup-control transistor that... | 05/24/2012 |
| 20120127769 | Soft Switching Power Converters Soft switching power converters are described. In one example, a grid tie solar power converter includes an input for receiving a direct current (DC) power input, an h-bridge coupled to the input, and an output coupled to the h-bridge. The h-bridge includes a plurality ... | 05/24/2012 |
| 20120106222 | METHOD OF OPERATING AN INVERTER BY TURNING OFF THE SWITCHING AROUND A ZERO TRANSITION OF THE ALTERNATING OUTPUT CURRENT A method of operating an inverter for converting direct voltage into alternating voltage. The inverter has direct-voltage terminals and alternating-voltage terminals and a plurality of power switching elements that are clocked at high-frequency connected between the d.c... | 05/03/2012 |
| 20120106221 | ELECTRIC POWER CONVERTER APPARATUS An electric power converter apparatus includes an inverter circuit having a plurality of upper arm elements and a plurality of lower arm elements, a feedback controlling module calculating a voltage command value in order to control an output from the inverter circuit i... | 05/03/2012 |
| 20120044731 | Method and Apparatus for Boosting DC Bus Voltage A power converter includes at least two power conversion sections operating in parallel. The power converter receives a variable input power and generates an AC output voltage. When the power source is generating enough power to supply a DC voltage to the power converte... | 02/23/2012 |
| 20120037616 | POWER INVERTER A power inverter (1) is provided with a full-bridge circuit (10), a shunt capacitor (CP), and a control circuit (20). The control circuit (20) controls the on/off state of each reverse-conductive semiconductor switch (SW1 to SW4... | 02/16/2012 |
| 20120038296 | CONTROLLABLE RECTIFICATION DEVICE AND ELECTRIC MOTOR COMPRISING THE SAME The present invention discloses a controllable rectification comprising an inverter (10), a control panel (20) and a drive panel (30). The inverter (10) may comprise three switch element groups connected in parallel. Each switch element group... | 02/16/2012 |
| 20120033476 | INVERTER CIRCUIT, POWER CONVERTER CIRCUIT, AND ELECTRIC VEHICLE An object is to reduce, with the control circuit of the full-bridge inverter circuit, distortions in an output signal of the inverter circuit resulting from an error in control of the switching of the high-side transistors and low-side transistors included in the first ... | 02/09/2012 |
| 20120020137 | POWER CONVERSION DEVICE A single phase three-level power converter can include a first half bridge and a second half bridge. A half bridge operation is implemented in either the first half bridge or second half bridge when outputting a single phase alternating current voltage having an amplitu... | 01/26/2012 |
| 20120014153 | SUPPLY CIRCUIT The present invention relates to a supply circuit (1) comprising:
| 01/19/2012 |
| 20120008359 | ASYMMETRIC ZERO-VOLTAGE SWITCHING FULL-BRIDGE POWER CONVERTERS Disclosed are full-bridge power converters providing DC output power at increased conversion efficiencies, and methods of operating full-bridge power converters providing DC output power at increased conversion efficiencies. In disclosed embodiments, the switches of the... | 01/12/2012 |
| 20120002454 | THREE-LEVEL INVERTER, POWER CONDITIONER, AND POWER GENERATING SYSTEM A three-level inverter includes a set of series-connected capacitors connected in parallel to a direct-current power supply; two arms connected in parallel to an output of the direct-current power supply and each having an alternating-current output terminal; and a cont... | 01/05/2012 |
| 20110304212 | RENEWABLE ENERGY STORAGE SYSTEM A bidirectional inverter of a renewable energy storage system is disclosed. In one embodiment, the bidirectional inverter includes a switching unit including a first switch connected to the DC link in series and a second switch connected to the DC link in parallel, an i... | 12/15/2011 |
| 20110299312 | INVERTER FOR SOLAR CELL ARRAY A full-bridge, NPC inverter uses pulse width modulation (PWM) to convert the DC voltage from a solar panel array to an AC voltage at the output of the inverter that is acceptable for connection to a utility. The PWM control unit has a predetermined carrier frequency. Th... | 12/08/2011 |
| 20110299311 | Power Generation System, Power Converter System, And Methods Of Converting Power A power converter system includes an inverter including a first bridge and a second bridge, wherein each of the first bridge and the second bridge includes at least one switch. The power converter system also includes an inductor including a first winding coupled to an ... | 12/08/2011 |
| 20110286253 | Three-phase inverter circuit and method for operating a three-phase inverter circuit A three-phase inverter circuit includes an inverter comprising a plurality of controllable power switches, and an electronic control device adapted to control the power switches. The control device in the event of a measured voltage drop on one phase is adapted to suppl... | 11/24/2011 |
| 20110267863 | TRANSFORMERLESS INVERTER COMPRISING A DC/DC CONVERTER A transformerless inverter that serves to feed electricity from a DC current source into an AC power grid, has an inverter bridge and a DC/DC converter connected upstream of the inverter bridge. The DC/DC converter converts an input DC voltage that is present between tw... | 11/03/2011 |
| 20110267859 | METHOD AND DEVICE FOR CONTROLLING A CONFIGURABLE POWER SUPPLY An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configu... | 11/03/2011 |
| 20110267858 | CONFIGURABLE POWER SUPPLY ASSEMBLY An apparatus, device, and system for generating an amount of output power in response to a direct current (DC) power input includes a configurable power supply, which may be electrically coupled to the DC power input. The configurable power supply is selectively configu... | 11/03/2011 |
| 20110267862 | SYSTEM AND METHOD FOR PROTECTION OF A MULTILEVEL CONVERTER A three level neutral point clamped (NPC) converter includes a plurality of phase legs each having at least two inner switching devices, at least two outer switching devices, at least two clamping diodes, and a protection circuit. An inner component failure sensing circ... | 11/03/2011 |
| 20110255321 | RESONANT CAPACITOR CLAMPING CIRCUIT IN RESONANT CONVERTER A resonant converter comprises a first and a second input terminal (1, 2) in order to connect a voltage source (VBulk). The first end of a first switch (S1) is connected to the first input terminal (1). The second end of the first swi... | 10/20/2011 |
| 20110249479 | METHOD OF CONTROLLING AN INVERTER OF NPC TYPE The invention relates to a method of controlling a multilevel inverter of NPC (Neutral Point Clamped) type. The method consists in particular in regulating the electrical potential of the mid-point when the inverter operates at full voltage, that is to say in overmodula... | 10/13/2011 |
| 20110235384 | POWER CONVERTER AND POWER CONDITIONER A power converter enhances conversion efficiency from DC power to AC power. A first chopper circuit chops DC voltage from a photovoltaic panel at a system frequency producing a first square-wave whose voltage level changes positively. A second chopper circuit chops the ... | 09/29/2011 |
| 20110228578 | NON-ISOLATED DC-DC CONVERTER FOR SOLAR POWER PLANT An exemplary non-isolated DC-DC converter for a solar power plant, can be adapted to connect to a full-bridge inverter. The converter includes positive and negative input terminals, and positive and negative output terminals. A plurality of switches, diodes, inductors a... | 09/22/2011 |
| 20110227407 | SYSTEMS AND METHODS FOR DEACTIVATING A MATRIX CONVERTER Systems and methods are provided for deactivating a matrix conversion module. An electrical system comprises an alternating current (AC) interface, a matrix conversion module coupled to the AC interface, an inductive element coupled between the AC interface and the matr... | 09/22/2011 |
| 20110222326 | VARIABLE DUTY CYCLE SWITCHING WITH IMPOSED DELAY Power conversion methods, systems, articles of manufacture, and devices are provided. The power conversion may include converting between direct current and alternating current wherein switching losses associated with latent electrical charges are reduced. Current sensi... | 09/15/2011 |
| 20110224663 | CONTROL CIRCUITRY FOR A TISSUE ABLATION SYSTEM A system for providing power suitable for electrosurgery from a self-contained direct current (DC) energy source according to embodiments of the present invention includes a voltage-affecting circuit having an input and an output, wherein the voltage-affecting circuit i... | 09/15/2011 |
| 20110216568 | SYSTEM INTERCONNECTION INVERTER The present invention includes: an inverter 1 configured to perform pulse wide modulation on an output from a DC power source 5; a first capacitor pair 41 provided at an input side of the inverter and including two capacitors serially connected to f... | 09/08/2011 |
| 20110211381 | POWER CONVERTING APPARATUS A neutral point clamped three-phase three-level inverter is connected to a first DC power supply and single-phase inverters are connected in series with AC output lines of individual phases of the three-phase three-level inverter such that sums of output voltages of the... | 09/01/2011 |
| 20110205773 | METHOD AND SYSTEM TO ALLOW FOR HIGH DC SOURCE VOLTAGE WITH LOWER DC LINK VOLTAGE IN A TWO STAGE POWER CONVERTER A system for supplying AC power from a DC power source, such as a photovoltaic array is disclosed. The system includes a converter and an inverter coupled by a DC link. Control methods and systems are provided to maintain the DC source voltage and the DC link voltage be... | 08/25/2011 |
| 20110198933 | POWER CONVERSION CIRCUIT AND POWER CONVERSION CIRCUIT SYSTEM A power conversion circuit system comprises a primary conversion circuit, a secondary conversion circuit, and a control circuit for controlling the primary and secondary conversion circuits. The primary conversion circuit comprises a primary full bridge circuit, which i... | 08/18/2011 |
| 20110188278 | Electron avalanche drive circuit Disclosed herein is an electron avalanche drive circuit whereby electron avalanche is produced in a high voltage spark gap exposed to open air or other suitable gaseous medium. The electrochemical process of electron avalanche produces additional current that is deliver... | 08/04/2011 |
| 20110182097 | Pulse Width Modulation Step Wave And Sine Wave Driving Device A PWM step wave and sine wave driving device is provided. The driving device includes an ADC unit, an input processing unit, a first pulse width calculation unit, a register unit, a first output unit, a zero point detecting unit, a second pulse width calculation unit, a... | 07/28/2011 |
| 20110176343 | POWER CONVERTING APPARATUS A power converter stabilizes a voltage by controlling leading of an AC current and performs maximum charging within contracted power reception amount when connected to a weak power system. The power converter comprises Magnetic Energy Recovery Switch comprising a bridge... | 07/21/2011 |
| 20110170326 | METHOD FOR CONTROLLING A CONVERSION STRUCTURE FOR CONVERTING DIRECT CURRENT TO ALTERNATING CURRENT The invention relates to a control method applicable to structures for converting direct current/alternating current, dc/ac, especially for photovoltaic systems. The control method according to the invention enables the switching losses of the semiconductors to be reduc... | 07/14/2011 |
| 20110164443 | Method And System For Controlling A Power Converter System Connected To A DC-BUS Capacitor A method and system for controlling a power converter system with first, second, and third phase legs with respective first, second, and third associated phase currents determine direction of current flow in at least two phase legs and switch states of the power convert... | 07/07/2011 |
| 20110157948 | CURRENT SOURCE INVERTER A current source inverter includes an inverter having arm units and AC terminals, the numbers of the arm units and AC terminals being adapted to an AC load connected to the AC terminals. An upper arm is connected between a positive DC terminal and the corresponding AC t... | 06/30/2011 |
| 20110157949 | Highly Efficient III-Nitride Power Conversion Circuit According to an exemplary embodiment, a III-nitride power conversion circuit includes a gate driver having a plurality of cascaded inverters, each of the plurality of cascaded inverters including at least one III-nitride transistor. At least one of the plurality of casc... | 06/30/2011 |
| 20110157944 | TEMPERATURE MONITORING FOR CIRCUIT BREAKERS Method for detecting and/or monitoring the temperatures of at least two electronic power switches, in particular semi-conductor power switches that are coupled with or arranged on a common cooling body, whereby a temperature detection and/or monitoring is carried out by... | 06/30/2011 |
| 20110133664 | Transition Mode Commutation For Inverter A driver circuit includes a plurality of switches, forming two switching legs, each of at least two switches and connected between two DC voltage buses. The switches are matched to form diagonal pairs. The driver circuit also includes a load circuit connecting the legs,... | 06/09/2011 |
