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| Number | Title | Issue Date |
| 8120935 | Power converter with dual ring network control A method for providing electric power to a power system includes receiving, at a slave node of a power converter having a plurality of slave nodes, a first synchronization signal via a first communication channel, the first synchronization signal purporting to repre... | 02/21/2012 |
| 8050067 | Method and control system for controlling power conversion in a power converter A control system for controlling conversion of an input power into an output power in a converter module is provided. The control system includes an input power terminal, an output power terminal, and an active switching device. The control system further includes a... | 11/01/2011 |
| 8014180 | Voltage regulator with inductor banks A voltage regulator coupled to an unregulated DC input voltage source by an input terminal, and to a load by an output terminal is disclosed. The voltage regulator converts an input voltage at the input terminal to an output voltage at the output terminal. The volta... | 09/06/2011 |
| 7944721 | Switching control circuit for multi-channels and multi-phases power converter operated at continuous current mode A switching control circuit for multi-channels and multi-phases power converter according to the present invention comprises a master control circuit and a slave control circuit. The master control circuit generates a multiplier signal in response to an input voltag... | 05/17/2011 |
| 7830688 | Voltage regulator with adaptation control A voltage regulator coupled to an unregulated DC input voltage source by an input terminal, and to a load by an output terminal is disclosed. The voltage regulator converts an input voltage at the input terminal to an output voltage at the output terminal. The volta... | 11/09/2010 |
| 7773396 | Parallel connection of inverters Method for synchronizing inverter units (INU11, INU12) that are connected in parallel and supply a motor, and a parallel connection arrangement, in which motor is either one winding, which is supplied by inverter units connected in parallel, or a plura... | 08/10/2010 |
| 7733676 | Non-contact power supply system utilizing synchronized command signals to control and correct phase differences amongst power supply units A non-contact power supply system is provided in which current phases of induction lines are matched. According to the output current of a power supply unit (21) and the power consumption of induction lines (19), a lead time corresponding to a phase di... | 06/08/2010 |
| 7688607 | Voltage regulator with inductor banks A voltage regulator coupled to an unregulated DC input voltage source by an input terminal, and to a load by an output terminal is disclosed. The voltage regulator converts an input voltage at the input terminal to an output voltage at the output terminal. The volta... | 03/30/2010 |
| 7616463 | Voltage regulator with common s-phase signals and phase lock loops A voltage regulator coupled to an unregulated DC input voltage source by an input terminal, and to a load by an output terminal is disclosed. The voltage regulator converts an input voltage at the input terminal to an output voltage at the output terminal. The volta... | 11/10/2009 |
| 7522436 | Master-slave with adaptation control including slave current checking A voltage regulator coupled to an unregulated DC input voltage source by an input terminal, and to a load by an output terminal is disclosed. The voltage regulator converts an input voltage at the input terminal to an output voltage at the output terminal. The volta... | 04/21/2009 |
| 7518894 | Distributed power supply system having reassignable master A distributed power system delivers DC power to a plurality of loads. The distributed power system includes a plurality of power converter modules having an associated DC to DC power conversion operation. Each of the modules includes a power regulation section for r... | 04/14/2009 |
| 7502240 | Distributed power supply system with separate SYNC control for controlling remote digital DC/DC converters A distributed power system for delivering DC power to a plurality of loads. A plurality of switching DC/DC converter modules are provided, each disposed proximate one of the loads, and each having associated therewith a switching pulse generator for generating switc... | 03/10/2009 |
| 7477533 | Compact contour electrical converter package A circuit assembly and package incorporates a front cover with power contacting blades extending from a front surface thereof for electrical engagement in a receptacle having a standard peripheral dimension. A housing is attached to the front cover and extends perpe... | 01/13/2009 |
| 7471528 | Parallel operating system of DC-AC converters and controller IC therefor A multiplicity of synchronized inverters for driving a multiplicity of loads such as CCFLs that require high ac voltages are arranged in close proximity of the respective loads and controlled in phase. A frequency determination capacitor and a frequency determinatio... | 12/30/2008 |
| 7394232 | Interleaved switching converters in ring configuration A switched mode power supply assembly that has a plurality of power supply modules cyclically coupled to each other. Each power supply module has a synchronization control module for generating a synchronization control signal for a next neighboring module and for r... | 07/01/2008 |
| 7368959 | Voltage regulator with synchronized phase shift An IC incorporating a multiphase voltage converter with synchronized phase shift including a phase shift pin, a frequency select pin, a master clock pin, and a voltage regulator. The phase shift pin is coupled to a first voltage for a master mode or a first resistor... | 05/06/2008 |
| 7355371 | Voltage regulator and method thereof A voltage regulator. A first analog to digital converter generates first data according to a first output voltage. A second analog to digital converter generates second data according to a second output voltage. A voltage adjustment device generates a voltage contro... | 04/08/2008 |
| 7323794 | Independent control of output current balance between paralleled power units An information handling system power supply system has a plurality of power supply units (PSUs) with outputs connected in parallel and a current balancing circuit for equalizing current from these outputs. A pseudo output current value may be added to the actual out... | 01/29/2008 |
| 7321735 | Optical down-converter using universal frequency translation technology A method and system for converting an optical signal to electrical information signals, including demodulated baseband information signals and modulated baseband signals at multiple harmonics. In an embodiment, the optical information signal is amplitude modulated w... | 01/22/2008 |
| 7315153 | Switching power supply in an integrated circuit having a comparator with two threshold values, a synchronization input and output, voltage feedback and efficient current sensing A switching power supply circuit in which a series circuit comprising a resistive element and a capacitive element is provided in a parallel configuration with an inductor which supplies a load current to a load circuit, a voltage comparator having first and second ... | 01/01/2008 |
| 7295826 | Integrated frequency translation and selectivity with gain control functionality, and applications thereof Methods and apparatuses for frequency selectivity and frequency translation, and applications for such methods and apparatuses, are described herein. The method includes steps of filtering an input signal, and down-converting the filtered input signal. The filtering... | 11/13/2007 |
| 7292835 | Wireless and wired cable modem applications of universal frequency translation technology Frequency translation and applications of same are described herein, including cable modem applications. Such applications include, but are not limited to, frequency down-conversion, frequency up-conversion, enhanced signal reception, unified down-conversion and fil... | 11/06/2007 |
| 7292463 | DC-AC converter and controller IC therefor A semiconductor switch circuit is connected to a primary winding of a transformer having a secondary winding connected to a load. The semiconductor switch circuit has switches controlled by PWM to provide a controlled constant current. In the inventive inverter, con... | 11/06/2007 |
| 7277303 | Power source apparatus There is provided a power source apparatus that includes a master circuit and a slave circuit provided in parallel and outputs an electric current that adds an electric current output from the master circuit and an electric current output from the slave circuit as a... | 10/02/2007 |
| 7272022 | DC-AC converter and method of supplying AC power A dc-ac converter capable of supplying a finely regulated ac drive voltage to a load is provided. For this purpose, the converter includes, in a primary winding of a transformer, a full-bridge or half-bridge type semiconductor switch circuit whose switches can be co... | 09/18/2007 |
| 7259474 | Method and apparatus for aggregating power from multiple sources A method and apparatus for aggregating power from multiple sources generates a single direct current regulated voltage. The apparatus comprises a plurality of slave voltage converters and a master pulse width modulator circuit. Providing a plurality of direct curren... | 08/21/2007 |
| 7256511 | Turbine-generator equipment and installation method thereof Installation method of turbine-generator equipment controlling a turbine-generator is described. The method includes manufacturing a thyristor excitation equipment as a package including a circuit breaker, an excitation transformer, a power rectifier coupled with th... | 08/14/2007 |
| 7256566 | Method and apparatus for determining a maximum power point of photovoltaic cells The maximum power point (MPP) of a photovoltaic array that can be coupled to power inverter is determined. A capacitor on a DC-bus side of the inverter is used as a load from which I-V characteristics of the photovoltaic array can be generated. The photovoltaic arra... | 08/14/2007 |
| 7254043 | Power converter for fuel battery The present invention relates to a power converter, using input voltage provided by a fuel battery and processing an electrical characteristics transformation on the input voltage to output an output voltage to loading. The power converter comprises: a multiple-phas... | 08/07/2007 |
| 7233509 | Parallel operating system of DC-AC converters and controller IC therefor A multiplicity of synchronized inverters for driving a multiplicity of loads such as CCFLs that require high ac voltages are arranged in close proximity of the respective loads and controlled in phase. A frequency determination capacitor and a frequency determinatio... | 06/19/2007 |
| 7196488 | Motor driving apparatus A motor driving apparatus capable of drivingly controlling a plurality of inverter units with a single motor driving command from a motor control unit, and thereby control a large-capacity motor or the like. The motor control unit sends out a single motor driving co... | 03/27/2007 |
| 7190208 | Self-oscillating full bridge driver IC A self-oscillating full-bridge driver IC, in which the high-side drivers each have a bootstrap capacitor, and a bootstrap circuit for pre-charging the bootstrap capacitors before starting up the oscillator or supplying control signals to the high-side drivers. ... | 03/13/2007 |
| 7170765 | Current distribution circuit A current distribution circuit for parallel power supplies is provided. The parallel power supplies include at least a first power supply and a second power supply, and the current distribution circuit includes a voltage amplifier, a power converting unit, a detecti... | 01/30/2007 |
| 7161818 | High frequency excitation system A power module is adapted to be connected to a voltage source and to supply power to a load. The power module includes a switching bridge that includes a first power transistor and a second power transistor, a first gate controller for driving the first power transi... | 01/09/2007 |
| 7123490 | Synchronous rectifying switching power source circuit In a synchronous rectification switching power supply circuit, a primary winding of a transformer and a main switching device are serially connected to a direct current input power supply. A secondary winding and a synchronous rectification device on the secondary s... | 10/17/2006 |
| 7123493 | Power source apparatus There is provided a power source apparatus that includes a master circuit and a slave circuit provided in parallel and outputs an electric current that adds an electric current output from the master circuit and an electric current output from the slave circuit as a... | 10/17/2006 |
| 7110444 | Wireless local area network (WLAN) using universal frequency translation technology including multi-phase embodiments and circuit implementations Frequency translation and applications of the same are described herein, including RF modem and wireless local area network (WLAN) applications. In embodiments, the WLAN invention includes an antenna, an LNA/PA module, a receiver, a transmitter, a control signal gen... | 09/19/2006 |
| 7110435 | Spread spectrum applications of universal frequency translation Frequency translation and spread spectrum applications of same are described herein. Such applications include, but are not limited to, unified down-conversion and de-spreading, unified up-conversion and spreading, RAKE receivers utilizing unified down-conversion an... | 09/19/2006 |
| 7110273 | Inverter controlling method An inverter controlling method is provided for a power system that includes a DC power source and a plurality of inverters connected in parallel to the power source. The method includes the steps of: measuring output power of the power source at a plurality of perio... | 09/19/2006 |
| 7099168 | DC-AC converter and controller IC therefor A semiconductor switch circuit is connected to a primary winding of a transformer having a secondary winding connected to a load. The semiconductor switch circuit has switches controlled by PWM to provide a controlled constant current. In the inventive inverter, con... | 08/29/2006 |
