Electric power conversion systems inventions 09/08

20080232139 - Power converter: The present disclosure is directed towards a method for power conversion. The method may include controlling a first rectifier switch coupled to one end of a secondary winding of a transformer via a first control signal. The method may further include controlling a first low side switch via said first... Agent: O2micro/gtpp

20080232138 - Switching drive circuit for soft switching: A switching drive circuit for soft switching is disclosed. It includes an input circuit to receive an input signal. A first delay circuit generates a first delay time in response to the enable of the input signal. A second delay circuit generates a second delay time in response to the... Agent: Rosenberg, Klein & Lee

20080232141 - Power system with power converters having an adaptive controller: A power system having a power converter with an adaptive controller. In one embodiment, a power converter coupled to a load includes a power switch configured to conduct for a duty cycle to provide an output characteristic at an output thereof. The power converter also includes a power converter controller... Agent: Slater & Matsil, L.L.P.

20080232140 - System for transferring an alternating voltage into a direct voltage: A system for transferring an alternating voltage into a direct voltage includes a rectifier, a filter, a transformer, a switch, a switch control circuit and a voltage feedback circuit. The rectifier connects to a main power supply device and rectifies the alternating voltage into a transient direct voltage. The filter... Agent: Bacon & Thomas, PLLC

20080232142 - Output current control circuit for power converter with a changeable switching frequency: A control circuit controls the output current of the power converter at the primary side of the transformer. The control circuit includes a current-detection circuit for generating a primary-current signal in response to the switching current of the transformer. A voltage-detection circuit is coupled to the transformer to generate a... Agent: Jianq Chyun Intellectual Property Office

20080232143 - Method of designing a static synchronous compensator based on passivity-based control: This invention presents a method of novel nonlinear control for designing Static Synchronous Compensators (STATCOM). A passivity-based approach is proposed for designing robust nonlinear STATCOM controller. The mathematical model of STATCOM will be represented by an Euler-Lagrange (EL) system corresponding to a set of EL parameters. By employing the Park's... Agent: Alan D. Kamrath Nikolai & Mersereau P.A.

20080232144 - Soft start circuit with slew rate controller for voltage regulators: In one embodiment, a soft start circuit includes a slew rate controller to limit inrush current to a voltage regulator during start up. The output voltage of the regulator may be compared to a previous sampled value to determine the slew rate of the output voltage. The slew rate of... Agent: Okamoto & Benedicto, LLP

20080232145 - Inverter circuit with distributed energy stores: The invention relates to a rectifier circuit comprising a phase module (110) with at least one upper and one lower rectifier valve (T1, . . . , T6), said phase module (100) being electrically connected on the DC side to a positive and a negative DC busbar (P0, N0), each... Agent: Henry M Feiereisen, LLC Henry M Feiereisen

20080232146 - Efficient power supplies and methods for creating such: Various embodiments of the present invention provide rectifier controllers, power supplies and methods for operating such. As one example, a rectifier controller circuit is disclosed that includes a transistor, a phase locked loop circuit, a period counter and a combinational logic circuit. One leg of the transistor is electrically coupled... Agent: Texas Instruments Incorporated

20080232147 - Resonant inverter: The present invention provides a low-cost resonant inverter circuit for ballast. The resonant circuit includes a transformer connected in series with a lamp to operate the lamp. A first transistor and a second transistor are coupled to switch the resonant inverter circuit. A second winding and a third winding of... Agent: Jianq Chyun Intellectual Property Office

20080225557 - High voltage power supply: Provided is a high voltage power supply which includes a controller to provide a PWM signal and a power signal, an input unit to receive the PWM signal provided from the controller, a comparison unit to control output of the power signal supplied from the controller by comparing a signal... Agent: Stanzione & Kim, LLP

20080225558 - Amplifier with switchmode power supply: An amplifier is driven by DC voltage from a switchmode power supply, whereby the switchmode power supply includes on the primary side a primary winding and bias supply winding. The bias supply winding supplies a reflected voltage from a secondary winding to a bias supply capacitor. The bias supply capacitor... Agent: Kenneth Watov, Esq. Watov & Kipnes, P.C.

20080225559 - Switching-mode power supply: A switching-mode power supply is configured so that two power supply lines are connected with each other via a series circuit consisting of a main switching element, a switch, and a transformer. The switching-mode power supply further includes a ripple voltage detecting circuit for detecting that a ripple voltage in... Agent: Birch Stewart Kolasch & Birch

20080225560 - Switching controller for parallel power converters: A switching controller for parallel power converters is disclosed. The switching controller includes an input circuit coupled to an input terminal of the switching controller to receive an input signal. An integration circuit is coupled to the input circuit to generate an integration signal in response to the pulse width... Agent: Jianq Chyun Intellectual Property Office

20080225561 - Apparatus and method for controlling inverter: An apparatus and method for controlling an inverter capable of enhancing reliability of current measurement by ensuring an optimal time for which effective voltage vectors are applied to detect a three-phase current according to a phase current and sizes of the effective voltage vectors, the apparatus comprising a space voltage... Agent: Greenblum & Bernstein, P.L.C

20080225562 - Electrical power conversion system for commercial and residential applications: A power conversion circuit includes main terminals that receive a first electrical energy from a main power source. An electric motor has input terminals that are coupled to the main terminals. The electric motor receives a second electrical energy as a current input based on the first electrical energy and... Agent: Harness, Dickey & Pierce, P.L.C

20080225563 - Method and apparatus to control voltage conversion mode: A method and apparatus to control a voltage conversion mode in a voltage converter are provided. The apparatus to control a voltage conversion mode includes: a voltage converter which converts an input voltage to an output voltage and having a plurality of voltage conversion modes; an input sensor which detects... Agent: Stein, Mcewen & Bui, LLP

20080225564 - Organic rectifier: The invention relates to an electronic device (5) in the form of a flexible multilayer film body, in particular an RFID transponder, and to a rectifier (52) for such an electronic device. The rectifier (52) has at least two organic diodes or organic field effect transistors each having at least... Agent: Carella, Byrne, Bain, Gilfillan, Cecchi, Stewart & Olstein

20080225565 - Vehicle electric-power conversion apparatus: The objective of the present invention is to obtain a vehicle electric-power conversion apparatus in which high-efficiency rectification operation can be realized, by detecting in real time a change, due to a fluctuation in a load, in a phase at which a switching element is turned on/off and by changing... Agent: Sughrue Mion, PLLC

20080219030 - Isolated dc/dc and dc/ac converters and controlling methods thereof having relatively better effectiveness: The configurations of an isolated DC/DC converter and an isolated DC/AC converter and the controlling methods thereof are provided. The proposed isolated DC/DC converter includes a DC/AC switching device, a transformer, a rectifier, and a duty ratio and frequency modulating apparatus coupled to the rectifier and the DC/AC switching device... Agent: Volpe And Koenig, P.c.

20080219031 - Apparatus and methods for improving the transient response capability of a switching power supply: The transient response of a switching power supply is improved by providing one or more supplemental power sources connected to the output terminal of the power supply. In one embodiment additional current is provided when a sudden increase in load current causes a corresponding decrease in output voltage. In one... Agent: Michael W. Caldwell

20080219032 - Method and system for operating a power converter: A method and system for operating a power converter having an electrical component and a switch coupled to a voltage source are provided. A signal is received that is representative of a desired current flow through the electrical component. A signal is generated that is representative of a difference between... Agent: General Motors Corporation Legal Staff

20080219033 - Switching power supply device: A switching power supply device includes a first series circuit of first and second switching elements connected in parallel with a DC power supply. An isolation transformer has primary and secondary windings and first and second auxiliary windings, a first layer including the primary windings between a second layer of... Agent: Rabin & Berdo, Pc

20080219034 - Circuit, shrink fixing and regulation method: The circuit 1 furthermore comprises an inverter 5 for putting out an AC-voltage, having an input and an inverter output 5a, 5b for connecting the induction coil 2, an intermediary circuit 4 for connecting the rectifier 3 with the inverter 5, and a regulation unit for regulating the power supplied... Agent: Marsh, Fischmann & Breyfogle LLP

20080219035 - Active power filter: An active power filter comprises an energy storage capacitor, an inverter, a filtering circuit and a controller. The inverter is controlled to act as a virtual resister at a fundamental frequency for compensating for the power loss of the active power filter, act as a virtual capacitor at a fundamental... Agent: Kamrath & Associates P.a.

20080219036 - Clean input ups with fast rectifier control and improved battery life: The present invention relates to the control of active rectifiers for UPS systems. Aspects of the present invention relate to a control algorithm that is implemented to realize a fast rectifier control operation that results in the improved life of a battery that is linked to the active rectifier of... Agent: Cantor Colburn, LLP

20080212340 - Method for operating a power converter in a soft-switching range: For converting a first DC voltage to a second DC voltage, a first bridge circuit comprised in a power converter is controlled to convert the first DC voltage to a first AC voltage. The first AC voltage is transformed to a second and possibly further AC voltage. The second and... Agent: Philips Intellectual Property & Standards

20080212341 - Dc-dc converter and transformer: A DC-DC converter using a plurality of transformers capable of decreasing the loss, preventing heat generation of transformers, and improving the heat transfer property of the core, and an integrated type transformer used in this DC-DC converter. A terminal T1 in which a negative electromotive force is generated and a... Agent: Woodcock Washburn LLP

20080212342 - Control method for direct-current transmission: In a method for controlling a rectifier and an inverter, which are connected together by a direct current circuit, a measuring direct current voltage and respectively, a measuring direct current are measured at at least one measuring point of the direct current circuit and are transmitted to a direct current... Agent: Lerner Greenberg Stemer LLP

20080212343 - Inverter based storage in dynamic distribution systems including distributed energy resources: A microsource is provided, which includes an inverter, an energy storage device, and a controller. The controller calculates a maximum frequency change for the inverter based on a first comparison between a first power set point and a measured power from the inverter. The first power set point is defined... Agent: Foley & Lardner LLP

20080212344 - Methods for managing electrical power: Certain exemplary embodiments comprise a system comprising a plurality of Active Front End units adapted to be electrically coupled to a direct current (DC) bus. Each of the plurality of Active Front End units can be adapted to be electrically coupled to a separate winding of a transformer of a... Agent: Siemens Corporation Intellectual Property Department

20080212345 - Dc-dc converter system: A DC-DC converter system is provided to improve switching control operation of a battery charging DC-DC converter (3) in an overheat temperature state without necessitating complication of a control unit (4). The control unit (4) performs output voltage limitation as well as output current limitation when the temperature of the... Agent: Oliff & Berridge, PLC

20080212346 - Antenna impedance modulation method: A method for modulating the impedance of an antenna circuit supplying pump signals to a charge pump comprising at least one first pump stage and one last pump stage, the last pump stage supplying a continuous voltage. The output of the first pump stage is short-circuited by means of a... Agent: Seed Intellectual Property Law Group PLLC

20080212347 - Switched-capacitor regulators: A switched-capacitor regulator is provided for regulating the output voltage of a voltage supply. The switched-capacitor regulator includes a supply input terminal capable of receiving a supply voltage, two or more flying capacitors, a regulation switch located between each flying capacitor and the supply input terminal, and a voltage control... Agent: Schwabe, Williamson & Wyatt, P.C. Pacwest Center, Suite 1900

20080212348 - Method for operating an inverter and arrangement for executing the method: There is described a method for operating an electronically controlled inverter. The inverter is controlled during the positive half-wave of the output alternating voltage in such a way that it operates as a SEPIC converter, and during the negative half-wave of the output alternating voltage in such a way that... Agent: Siemens Corporation Intellectual Property Department

20080212349 - Power converter: A power converter of the present invention is connected between a direct current power source and controls power to a load by switching equipment. The converter is equipped with a first conductor for connecting a negative pole of the power converter and the switching equipment, and a second conductor for... Agent: Crowell & Moring LLP Intellectual Property Group