Electric power conversion systems inventions 12/06

20060291257 - Method and system for providing voltage: A system and method to provide voltage to a device from the operating mode of an integrated circuit is disclosed. In a particular embodiment, the disclosed system includes an integrated circuit having an input/output pin and a DC-DC converter circuit that is coupled to the input/output pin and including a... Agent: Toler Schaffer, LLP

20060291258 - Adaptive multi-level threshold system and method for power converter protection: System and method for protecting a power converter. The system includes a compensation system configured to receive an input signal and generate a control signal, a cycle threshold generator configured to receive the control signal and generate a cycle threshold, and a comparator configured to receive the cycle threshold and... Agent: Townsend And Townsend And Crew, LLP

20060291259 - Power management for battery powered appliances: A power management topology for portable electronic devices that includes a feed-enabled AC/DC adapter that receives feedback data from a charge controller associated with the portable device. The feedback data can include battery charging current, battery voltage, or power requirements of the portable device. Using the feedback data, the external... Agent: Grossman, Tucker, Perreault & Pfleger, PLLC

20060291260 - Current resonance type multi-phase dc/dc converting apparatus having a large capacity without restricting multi-phase: In a current resonance type multi-phase DC/DC converting apparatus for combining, using an output capacitor, M converter output voltages produced by M current resonance type multi-phase DC/DC converters connected in parallel to each other to produce an output voltage, each of the M current resonance type multi-phase DC/DC converters has... Agent: Frishauf, Holtz, Goodman & Chick, PC

20060291261 - Cooling structure of electric device: A cooling structure of electric devices in a vehicle is structured to hold an inverter (300) downward of a cooling passage (356), and to hold a condenser (200) upward of the cooling passage (356). The heating value generated by the inverter (300) is larger than the heating value generated by... Agent: Kenyon & Kenyon LLP

20060285366 - Control circuit for a switch unit of a clocked power supply circuit, and resonance converter: A control circuit for a switch unit of a clocked power supply circuit, the switch unit being designed to effect input-side excitation of a resonant transformer arrangement, comprises an input for receiving an auxiliary signal from the resonant transformer arrangement. The auxiliary signal exhibits an essentially fixed phase relation to... Agent: Glenn Patent Group

20060285365 - Primary side constant output current controller: A lower-cost and more precise control methodology of regulating the output current of a Flyback converter from the primary side is provided, which works accurately in both continuous current mode (CCM) and discontinuous mode (DCM), and can be applied to most small, medium and high power applications such cell phone... Agent: Active-semi International Inc.

20060285367 - Switching power supply circuit: The invention aims at putting a single ended resonance type converter capable of obtaining a ZVS operation over an overall corresponding load region to practical use. A switching power supply circuit includes a primary side switching converter of a class-E resonance type, and a choke coil of a primary side... Agent: Lerner, David, Littenberg, Krumholz & Mentlik

20060285368 - High efficiency power converter: A power converter nearly losslessly delivers energy and recovers energy from capacitors associated with controlled rectifiers in a secondary winding circuit, each controlled rectifier having a parallel uncontrolled rectifier. First and second primary switches in series with first and second primary windings, respectively, are turned on for a fixed duty... Agent: Hamilton, Brook, Smith & Reynolds, P.C.

20060285369 - Switching mode power supply with active load detection function, and swithcing method thereof: A switching mode power supply (SMPS) with an active load detection function which supplies AC power input to a primary coil of a transforming element, then to a secondary coil of the transforming element, and then rectifies and outputs the AC power is provided. The SMPS comprises a controlling unit... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20060285370 - Switched current power converter with partial converter decoupling for low load conditions: A switched current power converter including an input power source, an output terminal, and a plurality of current stages. Each current stage includes a converter coupled to the input power source for providing a current, and a switch circuit for selectively coupling the current in such current stage to the... Agent: Harness, Dickey, & Pierce, P.l.c

20060285371 - Apparatus and method for controlling power converter: A power converter controlling apparatus that can prevent burnout caused by overcurrent and/or overvoltage generated by low power index operation or output short circuit in a high frequency power converter employing a digital controlling method, and a method thereof. The power converter controlling apparatus includes a digital controller which outputs... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20060285372 - Overcurrent protective device for switching element: An overcurrent protective device has a current detecting section and a control section. The current detecting section detects the amount of a current flowing through switching elements of an inverter device. The control section determines whether the inverter device is held in a first state or a second state in... Agent: Woodcock Washburn LLP

20060285373 - Power factor correction circuit: A power factor correction circuit which uses incoming AC voltage in a capacitive storage arrangement, forcing a wide conduction angle along with a high frequency boost convertor, to thereby raise the power factor to levels necessary to meet worldwide harmonic current requirements. The boost convertor feeds a resonant convertor from... Agent: John A. Scillieri Seldon And Scillieri

20060279965 - Dc-dc converter: Disclosed is a DC-DC converter including: a first switching element ON/OFF controlling a current fed from a primary side to a secondary side; a second switching element provided in parallel to the first switching element, controlled at a substantially same timing as an ON/OFF timing of the first switching element... Agent: C. Irvin Mcclelland Oblon, Spivak, Mcclelland, Maier & Neustadt, P.C.

20060279966 - Simple zero voltage switching full-bridge dc bus converters: A method and circuit arrangement for achieving zero voltage switching (ZVS) in a 50% duty cycle full-bridge DC bus converter. The ZVS is obtained by increasing the transformer magnetizing current. During the small dead time between conductions of the two bridge legs, the increased magnetizing current supports the output inductor... Agent: Ostrolenk Faber Gerb & Soffen

20060279968 - Dc/ac converter circuit and dc/ac conversion method: A switching circuit 13 switches transistors M1, M2 at a first high frequency f1 (100 kHz). Thereby, a DC low voltage input is converted into an AC voltage having a high frequency of 100 kHz. A transformer TR1 insulation-transfers the AC voltage of 100 kHz outputted from the switching circuit... Agent: Woodcock Washburn LLP

20060279967 - Voltage conversion circuit and switching power supply device: A voltage conversion circuit and a switching power supply device achieving both a good response and a low loss of a power supply voltage, wherein a main voltage conversion portion (circuit block) for conversion an AC voltage to a DC voltage, an auxiliary voltage conversion portion for the same conversion... Agent: Arent Fox PLLC

20060279969 - 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 switching pulses. A distributed power line distributes input power to... Agent: Howison & Arnott, L.l.p

20060279970 - Switching power converter controller: A control system and method for simultaneously regulating the operation of a plurality of different types of switching power converters. The system utilizes in regulating the power converters sampled data and nonlinear feedback control loops.... Agent: Alan H. Macpherson Macpherson Kwok Chen & Heid LLP

20060279971 - Power supply with current-sharing control and current-sharing method thereof: The present invention provides a power-supply apparatus with a current-sharing circuit and a current-sharing method thereof. The power supply with a current-sharing function uses a bus terminal as a current-sharing control interface. A power circuit provides an output voltage and an output current to an output terminal; and it generates... Agent: J C Patents, Inc.

20060279972 - Synchronized rectification circuit and switching power supply device: A synchronized rectification circuit and a switching power supply device having little power loss with respect to a wide range of input voltages and having a high efficiency, comprising first and second switch elements, first and second capacitors connected with each other capable to equalize held voltages thereof in response... Agent: Arent Fox PLLC

20060279973 - High efficiency dc to ac power converter: A high efficiency DC to AC power converter capable of achieving zero switching by provision of an inductive resistance in a conversion circuit. The inductive resistance may take a form of a single inductance, an inductance connected in series with a capacitor, an inductor, a capacitor and a resistor connected... Agent: Rosenberg, Klein & Lee

20060279974 - Ac line isolated dc high frequency low power converter: Circuit arrangements and methods are disclosed for providing a source of low power DC, direct and isolated from the main AC line. Applications of this circuitry include battery chargers and air ionizers. In this design, a high frequency ferrite transformer 16 is driven by signals created from a bilaterally conducting... Agent: Gary Hanington

20060279975 - Switching mode power supply and method for outputting voltage therefrom: A switching mode power supply and a method for outputting voltage therefrom are provided, where a transformer receives rectified alternating current (AC) voltage and transforms a voltage value or a current value, a switching transistor is connected to one end of a first coil and controls a level of power... Agent: Roylance, Abrams, Berdo & Goodman, L.L.P.

20060279976 - Modular power generation apparatus and method: The present invention provides a method and apparatus for providing temporary electrical power to stationary locations and moveable locations. For example, vessel marine power systems may be directed to the reduction and elimination of air pollutants produced when using a ship's generator while at dock. The power system is modular,... Agent: Shimokaji & Associates, P.C.

20060274557 - Method of forming an in-rush limiter and structure therefor: In one embodiment, an in-rush limiter is configured to control an output voltage to increase at a rate that is independent of the load that is powered by the in-rush limiter.... Agent: Mr. Jerry Chruma Semiconductor Components Industries, L.L.C.

20060274558 - Snubber circuit for a power converter: A snubber circuit and corresponding power converter topology for controlling the voltage across the resonant capacitor at turn on of a MOSFET control switch so as to suppress the spike at the drain of the MOSFET caused by the large current pulse and parasitic inductance of the power converter. The... Agent: Nixon Peabody, LLP

20060274559 - Multi-output dc-dc converter with increased power efficiency and power density: A multi-output DC-DC converter is advantageous over the conventional multi-output DC-DC converter in terms of increased power efficiency and power density. The inventive multi-output DC-DC converter is characterized by that the rectifying circuit located at the output stage of the DC-DC converter is implemented by a pair of self-driven synchronous... Agent: Madson & Austin Gateway Tower West

20060274560 - Variable-frequency drive with regeneration capability: An electrical device includes a plurality of single-phase power cells electrically connected to receive power from a source and deliver power to a load. The single-phase power cells include a first rank of regenerative power cells and a second rank of non-regenerative power cells. Each non-regenerative power cell may include... Agent: Pepper Hamilton LLP

20060274561 - Tri-level inverter: A tri-level inverter power module has an architecture employing a high degree of modularity that allows a base power module to be quickly, easily, and cost effectively configured to address a large variety of applications.... Agent: Seed Intellectual Property Law Group PLLC