Electric power conversion systems patents - Monitor Patents
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Electric power conversion systems December patent applications/inventions, industry category 12/09

Below are recently published patent applications awaiting approval from the USPTO. Recent week's RSS XML file available below.
Listing for abstract view: USPTO application #, Title, Abstract excerpt,Patent Agent. Listing format for list view: USPTO National Class full category number, title of the patent application.
12/31/2009 > patent applications in patent subcategories.

20090323374 - Switch control device and converter including the same: The present invention relates to a switch control device and a converter including the same. According to an exemplary embodiment of the present invention, the switch control device includes a PWM controller for forcing a power switch to turn on when the power switch is turned off during a predetermined... Agent: Alston & Bird LLP

20090323375 - Discontinuous conduction mode control circuit and method for synchronous converter: Circuit and method for controlling a synchronous power converter in discontinuous conduction mode with increased efficiency is disclosed. Circuitry is provided outputting gating signals to a high side driver and a synchronous rectifier responsive to a pulse width modulated input signal, an inhibit circuit for inhibiting the gating signal to... Agent: Slater & Matsil LLP

20090323376 - Semiconductor device, integrated circuit including the semiconductor device, control ic for switching power supply and the switching power supply: A semiconductor device incorporates a resistor on a structure that uses diffusion layers for sustaining the breakdown voltage thereof to realizes a very resistive element that exhibits a high breakdown voltage and high electrical resistance, includes a spiral very resistive element buried in an interlayer insulator film. A first end... Agent: Rossi, Kimms & Mcdowell LLP.

20090323377 - Optimal utilization of power converters for engine start system: A method and system for utilization of power converters in an aircraft engine start system includes measurement of power converter operation data that is utilized with a mathematical model of the power converter thermal characteristics to calculate operation limits for subsequent start duty cycles. A warning indicator is utilized in... Agent: Honeywell/shimokaji Patent Services

20090323378 - Switched capacitor dc-dc voltage converter: The disclosure describes techniques for converting an input voltage level to two or more output voltage levels using only two pump capacitors and three switching phases. The disclosure also describes techniques for selectively controlling a dc-dc converter to operate in different conversion modes. One mode may use only two pump... Agent: Medtronic, Inc.

20090323379 - High efficiency photovoltaic inverter: A photovoltaic (PV) inverter includes a single DC to AC converter configured to operate solely in a buck mode for PV array voltage levels greater than a connected power grid instantaneous voltage plus converter margin, and further configured to operate solely in a boost mode for PV array voltage levels... Agent: General Electric Company Global Research

20090323381 - Adaptable power supply circuit: A power supply circuit and a transponder having a circuit for rectifying an A.C. voltage and two power storage elements, the rectifying circuit providing a rectified voltage to at least one of the storage elements and an output voltage being provided by at least one of the storage elements, and... Agent: Stmicroelectronics Inc. C/o Wolf, Greenfield & Sacks, P.C.

20090323380 - Cyclo-converter and methods of operation: A three phase full resonant cyclo-converter suitable for converting a three phase AC supply to a DC output. In one embodiment the cycloconverter controls switching frequency to control converter output and adjusts phase on times for power factor correction. A switching sequence is employed which provides resonant switching to reduce... Agent: Myers Bigel Sibley & Sajovec

20090323382 - Adapter connection structure: The present invention discloses an adapter connection structure, which comprises a first converter and a second converter. The first converter is connected to at least one input terminal to receive an input power and converts the input power into a transitional power. The second converter is connected to the first... Agent: Muncy, Geissler, Olds & Lowe, PLLC

12/24/2009 > patent applications in patent subcategories.

20090316439 - Dc power source apparatus: A DC power source apparatus converts a DC input voltage into high-frequency power by turning on/off a switching element connected to a primary winding of a transformer and converts the high-frequency power transmitted to a secondary winding of the transformer into a DC output voltage. The primary and secondary windings... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090316438 - Power switch grouping: A power modulator comprises a plurality of switched pulse generator sections (22), a power supply arrangement (10), and a transformer arrangement (30). A switch control (24) is connected to said plurality of switched pulse generator sections (22) for providing control signals for turning on and/or turning off them. The switch... Agent: Nixon & Vanderhye, PC

20090316440 - Dc-dc converter: Provided is a DC-DC converter that can reduce losses. Ein and C1 are serially connected. Q1 and Q2 are serially connected so that antiparallel diodes thereof face the same direction. A terminal of C1 that is not connected to Ein and a terminal of Q2 that is not connected to... Agent: Woodcock Washburn LLP

20090316443 - Ac/dc intermediate-circuit converter having a very wide ac input voltage range: An AC/DC intermediate-circuit converter has a very wide AC input voltage range with a ZVS three-level DC/DC resonant converter with an LLC series-resonant circuit. Two intermediate-circuit capacitors are connected in series between DC intermediate-circuit connections with their common connection point forming a DC intermediate-circuit centre connection (5). The DC intermediate-circuit... Agent: Buchanan, Ingersoll & Rooney PC

20090316442 - Method for operating a resonant power converter: According to an exemplary embodiment a method of operating a resonant power supply comprises controlling the resonant power supply in a discontinuous way. According to an exemplary embodiment a resonant power supply comprises a first switching element, and at least one energy storing element, wherein the resonant power supply is... Agent: Philips Intellectual Property And Standards

20090316441 - Synchronous rectifier control circuit and method: In accordance with an embodiment of the present invention, a method of operating a switched power supply is disclosed. The method comprises determining a current load on a secondary side of a transformer by measuring a ratio between a secondary side current conduction time and a primary switching period of... Agent: Slater & Matsil LLP

20090316444 - Switching power supply device: In a switching power supply device, a first switch element, which defines a main switch element of a DC-DC converter, and a third switch element, which defines a switch element of a power-factor correcting circuit, are controlled such that turn-on timings are synchronized while on-period control is independently performed to... Agent: Murata Manufacturing Company, Ltd. C/o Keating & Bennett, LLP

20090316445 - High voltage power supply: This invention pertains to the control of high voltage power, and in particular to control of high voltage power from low voltage sources while reducing unwanted self resonance in the windings of a self oscillating flyback converter.... Agent: Macmillan, Sobanski & Todd, LLC

20090316446 - Transmission system: A HVDC transmission system including at one end of a bipolar HVDC transmission line a converter station for connecting the transmission line to an AC system. The station has two converters and a DC neutral arrangement in common to the converters. The DC neutral arrangement has a separate electrode line... Agent: Venable LLP

20090316447 - Power supply having maximum power point tracking function: The present invention relates to power supplies, and more particularly, to a power supply having a maximum power point tracking function that can reduce manufacturing costs and circuit size by using a maximum power point tracking section with a simplified circuit in a solar photovoltaic power generator supplying power using... Agent: Lowe Hauptman Ham & Berner, LLP

20090316448 - Power inverter circuit for adjusting symmetry of the ac-voltage without load-coupling: The invention relates to a power inverter circuit for coupling a power station to a power supply system. The invention addresses the problem to reduce the risk of damages to components of the power station and the power supply system in the course of coupling action by providing a power... Agent: Townsend And Townsend And Crew, LLP

20090316449 - Inverter and method for controlling output frequency of inverter: An inverter includes a counter, a PWM generator, a central controller and a power converter. The counter is used for receiving a frame switch signal to generate a frame counting signal. The PWM generator is coupled to the counter, and is used to select a specific frequency among a plurality... Agent: North America Intellectual Property Corporation

20090316450 - Power supply device with system switch circuit: A power supply device with a system switch circuit includes a primary power system, a stationary power system and a power management unit. The power management unit is triggered by a remote ON/OFF signal to generate a bias voltage power for turning on the primary power system after obtaining a... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090316451 - Apparatus providing protection for power converter: A switching circuit for a power converter includes an oscillation circuit, a first circuit, and a first comparator. The oscillation circuit generates a switching signal for regulating an output of the power converter. The first circuit generates a threshold signal. The first comparator is coupled to receive a signal representative... Agent: Jianq Chyun Intellectual Property Office

20090316452 - Power supply having maximum power point tracking function: The present invention relates to power supplies, and more particularly, to a power supply having a maximum power point tracking function that controls power switching so that a detected power value is within a reference range having a maximum power point in a predetermined current-voltage curve. A power supply having... Agent: Lowe Hauptman Ham & Berner, LLP

20090316453 - Converter control device: A converter control device includes a converter device formed by three converter circuits connected together in parallel between a secondary battery as a first power source and a fuel cell as a second power source. A control unit includes: a PID control module for controlling the converter device by PID... Agent: Kenyon & Kenyon LLP

20090316454 - Power factor correction converter control offset: Power factor correction converter control offset apparatus and methods are disclosed. In one aspect, an apparatus includes a control unit to generate a control signal to control a duty cycle of a PWM (Pulse Width Modulation) switching signal that controls a switch in a PFC (Power Factor Correction) converter. An... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090316455 - Switching mode power supply circuit: A switching mode power supply (SMPS) circuit includes: a rectifying unit that rectifies an AC voltage applied from an AC input terminal; a power factor correction (PFC) and standby voltage output unit that is connected to the rectifying unit and has a PFC part and a standby voltage output part... Agent: Lowe Hauptman Ham & Berner, LLP

20090316456 - Embedded bridge rectifier integrated with configurable i/o pads: An embedded bridge rectifier is disclosed. By reconfiguring and reconnecting internal ESD protection circuits originally installed at two bonding pads of integrated circuits, the invention not only saves hardware cost of conventional external bridge rectifiers, but also reduces the space of print circuit boards.... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090316457 - Inverter: On an inverter for feeding power of a direct voltage source, in particular of a photovoltaic generator (PVG), into an alternating voltage mains (N), with an asymmetrically clocked bridge circuit with at least two first switches (S1, S2) clocked at mains frequency and with at least two second switches (S3,... Agent: Panitch Schwarze Belisario & Nadel LLP

20090316458 - Single-phase inverter circuit to condition and transform direct current electric power into alternating current electric power: The invention presents a structure for the conversion of direct current electric power into alternating current electric power, characterised in that it is simple, highly efficient and minimises the problem of electromagnetic compatibility. The circuit includes, in its first preferred embodiment, six switching elements governed by a command unit, four... Agent: Knobbe Martens Olson & Bear LLP

20090316459 - Electrical timer system that automatically operates over different supply voltages: An electrical timer system is provided that has a unique voltage converter that automatically converts various supply voltage values to the required operating voltage for a timing device without jumpers or special configuration at installation.... Agent: Paul D. Greeley Ohlandt, Greeley, Ruggiero & Perle, L.L.P.

12/17/2009 > patent applications in patent subcategories.

20090310384 - Ac-dc input adapter: An output module for providing power to a device by using power from a source includes an inlet port, an outlet port, a power conversion circuit configured to receive power from the source through the inlet port and supply converted power to the device through the outlet port, and a... Agent: Haverstock & Owens LLP

20090310387 - Duty-cycle-controlled half-bridge resonant converter: A half-bridge resonant converter including a half-bridge switching circuit, a resonant circuit and a rectifier circuit is provided. The half-bridge switching circuit is controlled by two control signals for alternatively coupling two terminals of a DC power source to an input of a resonant circuit. The control signals have the... Agent: Mcginn Intellectual Property Law Group, PLLC

20090310385 - Method, apparatus & system for extended switched-mode controller: An exemplary extended switched-mode controller is provided for controlling the switching of a switched-mode power converter. This exemplary extended switched-mode controller further comprises a standard switched-mode controller and an auxiliary controller configured to receive standard switch control signals from the switched-mode controller and to (1) pass the standard switch control... Agent: Snell & Wilmer L.L.P. (main)

20090310386 - Power factor correction circuit: A power factor correction circuit steps up and power-factor-corrects a rectified voltage, which has been rectified from an AC input voltage of an AC power source Vin, through an ON/OFF operation of a switching element Q1 and supplies a stepped-up output voltage to a DC-DC converter that is driven with... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090310388 - Method and apparatus for measuring the switching current of power converter operated at continuous current mode: An apparatus for detecting a switching current of the power converter, wherein the apparatus includes a signal generation circuit, a sample-and-hold circuit, and a calculating circuit. The signal generation circuit generates a sample signal in accordance with the pulse width of a switching signal. The sample-and-hold circuit is coupled to... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090310389 - Method and apparatus providing a multi-function terminal for a power supply controller: A method for controlling a power supply is disclosed. An example method includes deactivating the power supply in response to a first current through a first terminal of a power supply controller falling below a first threshold value. The power supply is activated in response to the first current through... Agent: Blakely Sokoloff Taylor & Zafman LLP

20090310390 - Electrical power source, operational method of the same, inverter and operational method of the same: The present invention is an electric power source in which a plurality of inverters operate on the same frequency and the plurality of inverters are connected in parallel so that a resistance value expressed by (1−β·G)/(α·G) where α is the output voltage feedback gain, β is the output current feed... Agent: Kolisch Hartwell, P.C.

20090310391 - Solar array peak power extraction: Apparatuses and methods for optimizing power generation of a solar array are disclosed. The bus voltage is regulated with a regulator controlled through one or more reference signals. When the power bus is being used by electrical systems that are tolerant of a higher variable voltage range, the bus voltage... Agent: Canady & Lortz LLP - Boeing

20090310392 - power converter: This invention relates to a power converter for use in ACDC power supplies and in particular to a power converter comprising a converter input, a converter output and an output synchronous rectification stage, the output synchronous rectification stage comprises a plurality of switching devices, an output inductor and an output... Agent: Texas Instruments Incorporated

20090310394 - Direct-current power supply apparatus: First and second rectification circuits are connected to a commercial AC power supply by a reactor. A load is connected between the output terminal on the positive side of the first rectification circuit and the output terminal on the negative side of the second rectification circuit. While the voltage or... Agent: Dla Piper LLP Us

20090310393 - Motion activated amplifier: An electronic device that includes a motion activated amplifier structured to receive a first DC signal having a first DC voltage level and output a second DC signal having a second DC voltage level that is greater than the first DC voltage level. The motion activated amplifier includes a motion... Agent: Eckert Seamans Cherin & Mellott

12/10/2009 > patent applications in patent subcategories.

20090303750 - Method and system of syntonic circuit modulation controlling: A modulation control method and system for a resonance circuit that generally relate to electrical communication technique. In the system, a controlling chip of the resonance circuit is connected to associated controlling means providing voltage matching and resistance control. The controlling means provides controlling parameters to the chip in accordance... Agent: Harness, Dickey & Pierce, P.L.C

20090303749 - Pick-up apparatus for inductive power transfer systems: An Inductive Power Transfer (IPT) pick-up apparatus includes a magnetically permeable core, a first coil, being wound about the core so as to be inductive coupled therewith such that a current induced in the first coil is most sensitive to a first directional component of magnetic flux and a second... Agent: Cooper & Dunham, LLP

20090303751 - Power source apparatus and control method thereof: A power source apparatus includes a DC voltage generator (1, 2, 3) to generate a DC voltage, a plurality of voltage converters connected in parallel with one another and each having a switching element (5a/5b) to convert the DC voltage generated by the DC voltage generator into a predetermined DC... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, L.L.P.

20090303752 - Switching power supply: A switching power supply includes an active device for pulling out a part of a control signal from a control terminal of the switching device in an RCC, and a control signal generation circuit that applies adjustment voltage as ON/OFF time control voltage to a control terminal of the active... Agent: Edwards Angell Palmer & Dodge LLP

20090303754 - switching mode power supply and a method of operating the power supply in a power save mode: A switching mode power supply and a method of operating the power supply in a power save mode. The switching mode power supply includes a first PWM controller and a second PWM controller that are driven by different driving voltages and control first and the second voltages to be output,... Agent: Stanzione & Kim, LLP

20090303753 - Multi-element resonant converters: A resonant switched power converter having switching frequency controlled in response to an output voltage thereof achieves over-current protection such as at start-up or under short circuit conditions using a resonant tank circuit which provides a notch filter in addition to a band pass filter. A additional band pass filter... Agent: Whitham, Curtis & Christofferson & Cook, P.C.

20090303755 - Power converter apparatus: A power converter apparatus for receiving an input voltage and produces an output voltage by converting includes a switching-type voltage converting circuit circuit and a voltage level tuning circuit. The switching-type voltage converting circuit circuit includes an inductor, a switch and a synchronous rectifier, wherein the switch is for disabling/enabling... Agent: Jianq Chyun Intellectual Property Office

20090303756 - Maximum output power control of a flyback converter: A method and apparatus for a flyback converter estimate the next value of the current limit for the flyback converter according to a present current limit value to achieve the maximum output power control of the flyback converter. An arithmetic circuit is used to calculate the next current limit value... Agent: Rosenberg, Klein & Lee

20090303757 - Method of forming a power supply controller and structure therefor: In one embodiment, a switching controller uses an auxiliary winding voltage of a transformer to form a signal representative of current flow through a secondary winding of the transformer.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090303758 - Converter: A converter for converting alternating voltage into direct voltage and vice versa in a converter station of a high voltage transmission system including a series connection of a plurality of converter valves. The converter has connections to transformers on both of two opposite sides of the converter valves.... Agent: Venable LLP

20090303759 - Dc filter and voltage source converter station comprising such filter: The resistors of a filter block in a voltage source converter station are connected with a floating neutral point.... Agent: Venable LLP

20090303760 - Resonant transformer systems and methods of use: Resonant transformer systems and methods of use are described. One aspect may include a primary winding, a secondary winding, and at least one output winding. In further aspects, a transformer may be coupled to the secondary winding. In one aspect, the output winding is coupled to rectifying circuitry, which may... Agent: Milbank, Tweed, Hadley & Mccloy

20090303761 - Converter station and a method for control thereof: A converter station an element adapted to determine a value of an actual temperature of any critical component of the station and an element adapted to determine a value of an actual temperature of any media used to cool the critical component. An arrangement is adapted to utilize these temperature... Agent: Venable LLP

20090303762 - Power factor correction rectifier that operates efficiently over a range of input voltage conditions: A PFC rectifier comprises a first converter having a first output capacitor and a second converter having a second output capacitor. The he first and second capacitors are coupled to each other to increase the output voltage of the PFC rectifier. Fore example the first or second output capacitors can... Agent: Venable LLP

20090303763 - Photovoltaic inverter: A photovoltaic inverter that can respond to changes in temperature and the amount of sunlight and that can automatically start up is provided, which has a simple configuration and is inexpensive. The photovoltaic inverter has a first voltage detection means for detecting an output voltage of a photovoltaic panel; a... Agent: GlobalIPCounselors, LLP

20090303764 - Universal three phase controllers for power converters: The systems and methods described herein provide for a universal controller capable of controlling multiple types of three phase, two and three level power converters. The universal controller is capable of controlling the power converter in any quadrant of the PQ domain. The universal controller can include a region selection... Agent: Orrick, Herrington & Sutcliffe, LLPIPProsecution Department

20090303765 - Switching power source system: An error voltage Verr, being a difference between DC output voltage Vout and output reference voltage Vref, and an input voltage Vin are multiplied to produce first threshold voltage signal Vth1 in phase with and similar to input voltage Vin and proportional to Verr. Second threshold voltage signal Vth2 is... Agent: Rabin & Berdo, PC

20090303766 - Method and apparatus for increasing the power capability of a power supply: Techniques are disclosed to extend an on time period of switch to regulate a transfer of energy from an input of a power supply to an output of a power supply. One example integrated circuit includes an energy transfer element coupled between an input and an output of the power... Agent: Blakely Sokoloff Taylor & Zafman LLP

12/03/2009 > 18 patent applications in 14 patent subcategories.
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