Electric power conversion systems patents - Monitor Patents
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Electric power conversion systems June invention type 06/10

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.
06/24/2010 > patent applications in patent subcategories.

20100157627 - Output voltage detecting circuit and switching power supply having such output voltage detecting circuit: An output voltage detecting circuit includes a conducting structure, a voltage regulator, a first resistor and a second resistor. The conducting structure includes a power output return terminal, a first contact and a second contact. A compensating voltage is generated between the first and second contacts when an output current... Agent: Kirton And Mcconkie

20100157628 - Method and device for sensing a current flowing through an output inductor of a pwm driven converter: A device generates a signal representative of a current flowing through a load inductor of a converter, the converter having a first transformer including a primary winding driven with a pulse width modulated (PWM) voltage signal. The device may include a sense inductor magnetically coupled to the load inductor, and... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20100157629 - Semiconductor laser apparatus: A switching power supply includes: a blanking period generating circuit for prohibiting a main switching element from being turned on from the time the main switching element is turned on to the time a blanking time elapses; a soft start period generating circuit for generating a soft start period from... Agent: Hamre, Schumann, Mueller & Larson P.C.

20100157630 - Flyback power supply with forced primary regulation: A flyback converter with forced primary regulation is disclosed. An example flyback converter includes a coupled inductor including a first winding, a second winding, and a third winding. The first winding is coupled to an input voltage and the second winding is coupled to an output of the power converter.... Agent: Blakely Sokoloff Taylor & Zafman LLP

20100157631 - Audible noise reduction in a power supply transfomer: This disclosure relates to a switching power supply with regulated voltage suppression to reduce transformer audio noise.... Agent: Lee & Hayes, PLLC

20100157632 - Energy conversion systems with power control: In one embodiment, a power conversion system may include a controller to cause a power stage to control power to or from an energy storage device. In another embodiment, a power conversion system may include a push-pull stage and an energy storage device following the push-pull stage. In another embodiment,... Agent: Marger Johnson & Mccollom, P.C.

20100157633 - Redundant current valve control in a high voltage power transmission system: A method and device for providing redundant control of a controllable current valve in a converter of a power transmission system. A first converter control unit sends a first valve control signal. A first active/standby indicator is associated with the first converter. A second converter control unit sends a second... Agent: Venable LLP

20100157634 - Power inverter control for grid-tie transition: A control system for a power inverter is disclosed. The power inverter may be configured to supply power to a grid. The control system may include a plurality of output voltage sensors and a plurality of output current sensors configured to measure output line voltages and output line currents of... Agent: Caterpillar/finnegan, Henderson, L.L.P.

20100157635 - Predictive current control in driving a load in a pwm mode: A pulse width modulated current control method and system architecture may achieve the high performance of an advanced current control for full-bridge stages, in terms of accuracy, error, speed, and frequency response, but with a reduced complexity in terms of used analog circuits, being comparable with that of an elementary... Agent: Allen, Dyer, Doppelt, Milbrath & Gilchrist P.A.

20100157636 - Controller for switching power converter driving bjt based on primary side adaptive digital control: A controller of an AC/DC flyback switching power supply uses adaptive digital control approaches to control the switching operation of a BJT power switch based on primary-side feedback to regulate the secondary-side constant output voltage and output current, without using the input line voltage. Switching-cycle by switching-cycle peak current control... Agent: Fenwick & West LLP

20100157637 - Green-energy power generator for electrical discharge machine: This invention relates a green-energy power generator for electrical discharge machine, which comprise: an alternating current (AC) power supply, an AC-to-DC power converter, a DC-to-DC power converter, a current limiting unit, a time limiting unit, and a control unit. It can reduce the unnecessary energy consumption and achieve the objective... Agent: Morris Manning Martin LLP

20100157638 - Energy conversion systems with power control: In one embodiment, a power conversion system includes a controller to provide power control to a converter, and a distortion mitigation circuit. In another embodiment, a system includes a converter to transfer power between a power source and a load having fluctuating power demand, and a controller to provide power... Agent: Marger Johnson & Mccollom, P.C.

20100157640 - Electric power converter: An electric power converter that includes a capacitor module which has a DC terminal, an inverter which coverts a direct current into an alternating current, and heat release fins which cool the inverter, is constructed so that: the inverter has a power module including a plurality of power semiconductor elements;... Agent: Crowell & Moring LLP Intellectual Property Group

20100157639 - Inverter comprising normally conductive gate-controlled semiconductor switches: An inverter comprises two input lines; an inverter bridge connected between the input lines and including at least one half-bridge comprising two normally conductive gate-controlled semiconductor switches; a controller which supplies control voltages to the gates of the semiconductor switches in an operative state of the inverter; and a DC... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

06/17/2010 > patent applications in patent subcategories.

20100149837 - Switching power supply: An object of the present invention is to provide a switching power supply which can stably determine whether an overcurrent occurs or not on the secondary side. A sample voltage corresponding to a load current value detected by detection resistors R7 and R8 is compared with a reference voltage by... Agent: Hamre, Schumann, Mueller & Larson P.C.

20100149838 - 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.

20100149839 - Synchronous rectifier: The disclosed embodiments relate to apparatus and method for reducing power losses in a power supply. There is provided an apparatus comprising means (214) for coupling a first signal (S2) to a reference level (ground) when the coupling means is conductive, means (202, 204) for placing the coupling means in... Agent: Robert D. Shedd, Patent Operations Thomson Licensing LLC

20100149840 - Power supply apparatus and image forming apparatus: The power supply apparatus for obtaining a direct current from an alternating voltage source includes a first DC/DC converter for outputting a first direct current and a second DC/DC converter for a second direct current lower than the first direct current from the first DC/DC converter, and the output voltage... Agent: Fitzpatrick Cella Harper & Scinto

20100149841 - Power feedback device: The present invention relates to a power feedback device, including: an AC input power source, which is three-phase or multi-phase AC, or three-phase or multi-phase AC in which the output terminal is connected in series with an inductor, for generating power; a plurality of power converting units, the input terminals... Agent: Harrity & Harrity, LLP

20100149842 - Low emi producing switch-mode power supply within an intelligent electronic device: An apparatus for varying the timing of a SMPS, including a microcontroller configured to output a first PWM signal. A converter is coupled to the microcontroller and is configured to receive the first PWM signal and output an analog signal to a SMPS timing capacitor coupled to a SMPS. The... Agent: Schneider Electric / Square D Company Legal Dept. - I.p. Group (np)

20100149843 - Preemptive protection for a power convertor: Among many embodiments, a power conversion apparatus and a method for converting power are disclosed. The power conversion apparatus may include switching components configured to create an alternating current; a preemptive detector arranged and configured to provide, in advance of the alternating current reaching a zero-crossing, a control signal responsive... Agent: Neugeboren O'dowd PC

20100149844 - Inverter apparatus: An inverter apparatus converts a DC power of a capacitor charged via a rectifier circuit connected to a first AC power system into an AC power, and supplies the AC power to a second AC power system. The inverter apparatus includes a discharge circuit, a control circuit, a trigger circuit,... Agent: Buchanan, Ingersoll & Rooney PC

20100149845 - Digitally controlled switched-mode power supply: The present invention relates to a digitally controlled switched-mode power supply, which achieves the effectiveness to save on power and enable more accurate voltage through control of a digital circuit, The power supply is provided with a control circuit, and the control circuit primarily includes a digital unit and a... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20100149846 - Inverter circuit having relatively higher efficiency: The configurations of an inverter circuit are provided in the present invention. The proposed circuit includes a first bridge arm having a first sub-bridge arm with a first switch and a first middle point coupled to the first switch, and a second sub-bridge arm with a second switch and a... Agent: Volpe And Koenig, P.C.

20100149847 - Apparatus providing bias to solar cells: Solar panels of certain technologies may experience a degradation of their efficiency as a result of exposure to sunlight, either prior to installation or during normal operation. A direct current to pulse amplitude modulated (“PAM”) current converter, denominated a “PAMCC”, is connected to the solar panel and to a source... Agent: Michael W. Caldwell

20100149848 - Matrix converter space vector modulation method: [Means for solving problem] Provided is a matrix converter space vector modulation method in which bidirectional switches (SW1 through SW9) of a matrix converter (3) are PWM controlled in a space vector modulation from a multi-phase AC power source. Switching patterns for which virtual indirect space vectors are used are... Agent: Foley And Lardner LLP Suite 500

06/10/2010 > patent applications in patent subcategories.

20100142227 - Photovoltaic power conditioning system and method: A photovoltaic power conditioning system and method is provided. The system includes an isolated DC/DC converter (41), a DC/AC inverter (42), and a sine filter (43). The isolated DC/DC converter (41) receives a DC voltage from a solar cell through a parallel connection structure and converts the DC voltage into... Agent: Lrk Patent Law Firm

20100142228 - Bi-directional dc-dc converter and control method: A bi-directional DC-DC converter uses a transformer for both step-down and step-up operations. A switching frequency for operating a switching device is set separately for the step-down and step-up operations. When, for example, the switching frequency during the step-up operation is lower than the switching frequency during the step-down operation,... Agent: Crowell & Moring LLP Intellectual Property Group

20100142229 - Switching power source device and switching power source control circuit: A switching power source device which has main switch elements which switch a current path of the series resonant circuit, and a transformer which induces a current to a secondary side, controls the main switch elements on a primary side. Synchronous rectification switch elements are turned ON and OFF in... Agent: Kanesaka Berner And Partners LLP

20100142230 - Simplified primary triggering circuit for the switch in a switched-mode power supply: The present invention relates to a trigger circuit for a switch in a switching power supply, especially in a primary-side, triggered switching power supply. The trigger circuit here comprises a feedback signal terminal for detecting an auxiliary voltage induced on a primary-side auxiliary winding of a transformer of the switching... Agent: Marsh, Fischmann & Breyfogle LLP

20100142231 - Control methods and integrated circuits for controlling power supply: Integrated circuits for controlling power supplies and relevant control methods are disclosed. A controller generates a control signal to control a power switch. A feedback pin of an integrated circuit receives an external feedback signal representing an output voltage signal of a power supply. Controlled by the control signal, a... Agent: North America Intellectual Property Corporation

20100142232 - Flyback switching power supply and control method thereof: A flyback switching power supply capable of regulating an operation frequency based on a current regulation mechanism is disclosed. The flyback switching power supply includes a transformer, a switch, a switch control circuit, and a regulation circuit. The transformer includes a primary winding for receiving an input voltage, a secondary... Agent: North America Intellectual Property Corporation

20100142233 - Power conversion device and control method thereof: A power conversion device is provided for converting a DC voltage to an alternating current corresponding to an AC voltage according to the AC voltage, which includes a power conversion unit and an output unit. The power conversion unit converts the DC voltage to a high-frequency current having two envelops... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100142234 - Partial regeneration in a multi-level power inverter: In one embodiment, the present invention includes a medium voltage drive system having multiple power cells each to couple between a transformer and a load. A first subset of the power cells are configured to provide power to the load and to perform partial regeneration from the load, and a... Agent: Trop, Pruner & Hu, P.C.

20100142235 - Power conversion device: Provided is a power conversion device capable of detecting a short circuit failure and protecting from the same securely. The power conversion device includes: a three-phase bridge type power conversion circuit including a semiconductor switch including a first main terminal, a second main terminal, and a control terminal; a control... Agent: Sughrue Mion, PLLC

20100142236 - Power conversion system for eliminating low frequency ripple current and control method thereof: There is provided an integrated control method for eliminating a low frequency ripple in a power conversion system for a fuel cell, more particularly, a control method of a power conversion system capable of eliminating a low frequency ripple, controlling a DC link voltage, and controlling an output power and... Agent: Pearne & Gordon LLP

20100142237 - System and method for control of a grid connected power generating system: A system for controlling a grid connected power generating system is provided. The system includes a wind turbine, a converter, a first controller and a second controller. The wind turbine supplies electrical power to a power grid and the converter couples the wind turbine to the power grid. The first... Agent: General Electric Company Global Research

20100142238 - Method and device in frequency converter: A method in connection with a frequency converter for correcting the power factor of the frequency converter, and a power factor correction unit. The method includes connecting the power factor correction unit between a rectifier bridge of the frequency converter and the supplying AC voltage network, generating with the power... Agent: Buchanan, Ingersoll & Rooney PC

20100142239 - Fully integrated multi-phase grid-tie inverter: In a grid-tie inverter, the DC input is phase and pulse-width modulated to define multiple phase shifted voltage pulses with the width of each pulse being modulated according to the grid AC amplitude for the corresponding portion of the AC phase.... Agent: Vollrath & Associates

20100142240 - N-phase full bridge power converter: An N-phase full bridge power converter, comprising: a load device; a plurality of bridge legs, each being composed of two power switches; a plurality of transformers, each being coupled between two nodes each disposed between two power switches in two adjacent bridge legs on its primary side and coupled to... Agent: Wpat, PC Intellectual Property Attorneys

06/03/2010 > patent applications in patent subcategories.

20100135044 - Single-stage switching power supply: A single-stage switching power supply includes a transformer, a voltage level generation circuit, a first switching circuit, a second switching circuit, a rectifying and filtering circuit, a feedback circuit and a control circuit. The rectifying and filtering circuit is connected to the secondary winding assembly and the system circuit for... Agent: Kirton And Mcconkie

20100135045 - Sine wave inverter: An inverter circuit having a single conversion stage with substantially zero-current switching.... Agent: Law Office Of Scott C Harris Inc

20100135047 - High-voltage modulator system: A high-power modulation system includes drive circuitry that receives input signals from the signal source via a series of transformers. The drive circuitry amplifies the input signals and provides the resulting amplified signals to the high-power switch. The switch includes a series of stacked switching elements, each with a control... Agent: Arthur J. Behiel Silicon Edge Law Group LLP

20100135046 - Predictive control system: The first sampling measurement value compares whether to exceed a prescribed threshold and judges the control part at the sampling time. The control part compares whether the first sampling measurement value exceeds a prescribed threshold. When the actual measurement value doesn't exceed a prescribed threshold, the control part predict the... Agent: Jae Y. Park

20100135048 - Switching power supply device and method of starting the same: In a switching power supply device using a first power supply circuit (11) having a small output and a second power supply circuit (12) having a large output, the first power supply circuit (11) is continuously kept in an operating state and the second power supply circuit (12) is started... Agent: Frishauf, Holtz, Goodman & Chick, PC

20100135049 - 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

20100135050 - Switching power supply control circuit: A comparator detects whether a feedback signal of an output voltage detecting circuit for a switching power supply circuit reaches a control voltage. A comparator detects an operating state of the switching power supply circuit, which is instructed by a switching instruction signal, by comparing the instruction signal with a... Agent: Rossi, Kimms & Mcdowell LLP.

20100135051 - Three-phase inverter for converting dc power from a generator into three-phase ac power: A three-phase inverter for converting DC power from a generator into three-phase AC power comprises a transformer for transforming two single phase alternating voltages with a fixed phase offset present at corresponding two primary windings into a three-phase alternating voltage present at secondary windings of the transformer. An inverter circuitry... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20100135052 - Voltage multiplier with improved power efficiency and apparatus provided with such voltage multiplier: A voltage multiplier comprising a chain of multiplier stages, each multiplier stage (STGj) comprising first and second inputs (IPIj, IP2j) and first and second outputs (OPIj, 0P2j), which first and second outputs of a multiplier stage is coupled to respective first and second inputs of another multiplier stage, each multiplier... Agent: Philips Intellectual Property & Standards

20100135053 - Power conversion circuit: A power conversion circuit includes a bidirectional switch 2. The bidirectional switch 2 has a first gate terminal G1, a second gate terminal G2, a first ohmic terminal S1 and a second ohmic terminal S2. The bidirectional switch 2 has four operation states. In the first state, the bidirectional switch... Agent: Mcdermott Will & Emery LLP

20100135054 - Inverter for feeding electric energy into a power supply system: An inverter (3) is described for feeding electrical energy into a power supply system (2) having in each case one input (6, 7) which is intended for connection to the negative and positive output (4, 5) respectively of a DC voltage generator (1) two outputs (8, 9) which are intended... Agent: Pyle & Piontek, LLC

20100135055 - Trailer hitch plug power inverter: Disclosed is a power inverter for use in converting 12VDC to 115VAC, the power inverter is adapted for securement to a conventional trailer hitch connector. The power inverter provides remote power to 115 volt accessory items by use of a conventional 115 volt output receptacle positionable at the rear of... Agent: Mchale & Slavin, P.A.

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