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Electricity: power supply or regulation systems September class, title,number 09/09

20090237039 - Method of controlling a dc-dc convertor in discontinuous mode: A DC-DC converter includes an induction coil cooperating with two switches, which operate alternately, to supply output voltage of a determined level relative to input voltage. The converter control method includes, in each cycle, a first phase of first duration with first switch controlled to make it conductive, and to... Agent: Griffin & Szipl, PC

20090237040 - family of current/power-efficient high voltage linear regulator circuit architectures: Power efficient power supply regulator circuits are disclosed. The circuits are configured to modify their overhead current according to current load. This is particularly advantageous for use in display devices with widely varying current loads. Such displays include bi-stable displays, such as interferometric modulation displays, LCD displays, and DMD displays.... Agent: Knobbe, Martens, Olson & Bear, LLP

20090237041 - Electric current measurement apparatus, voltage measurement apparatus and power supply apparatus: An electric current measurement apparatus for measuring an electric current of each electrode of an electron tube includes a transformer, a detection resistor connected in an ampere meter route for measurement, a voltage detection unit for detecting electric potential difference of the detection resistor and outputting pulse signals corresponding to... Agent: Nec Corporation Of America

20090237043 - Zero current switching: A method for providing non-resonant zero-current switching in a switching power converter operating in a continuous current mode. The switching power converter converts power from input power to output power. The switching power converter includes a main switch connected to a main inductor, wherein an auxiliary inductor is connectible with... Agent: The Law Office Of Michael E. Kondoudis, PC

20090237042 - Zero voltage switching: A method for providing non-resonant zero-voltage switching in a switching power converter. The switching power converter converts power from input power to output power during multiple periodic switching cycles. The switching power converter includes a switch and an auxiliary capacitor adapted for connecting in parallel with the switch, and an... Agent: The Law Office Of Michael E. Kondoudis, PC

20090237044 - Bidirectional interleaved dc to dc converter utilizing positively coupled filter inductors: A bidirectional interleaved DC to DC converter comprises positively coupled filter inductors that are coupled to a switching network that receives power from a DC power source, such as a battery. The positively coupled inductors are integrated as a single coupled inductor, which allows the DC to DC converter to... Agent: Renner Kenner Greive Bobak Taylor & Weber

20090237045 - Apparatus, system, and method for a switching power supply with high efficiency near zero load conditions: An apparatus, system, and method are disclosed for a switching power supply with high efficiency near zero load conditions. A power detection module detects power provided to a load. The switching power supply is capable of operating in a zero voltage switching mode. The power detection module detects when the... Agent: Kunzler & Associates

20090237046 - Apparatus of dynamic feedback control charge pump: An apparatus of dynamic feedback control charge pump is provided. The apparatus of dynamic feedback control charge pump receives an input voltage through a voltage regulator. The voltage regulator regulates the input voltage to a base voltage according to a control signal. The charge pump receives the base voltage and... Agent: Jianq Chyun Intellectual Property Office

20090237049 - Comparator type dc-dc converter: A comparator-system DC-DC converter 1 according to an embodiment of the present invention comprises a control unit 200 which has a comparator section 20, 40 which compares the output voltage of the voltage conversion section with a reference voltage and determines a predetermined ON width of the ON pulse of... Agent: Sughrue Mion, PLLC

20090237052 - Control apparatus for controlling power conversion apparatus: The control apparatus is for controlling a power conversion apparatus with a chopper circuit including at least one voltage-controlled type switching element provided with a drive circuit, and a coil to generate back electromotive force. The control apparatus includes a function of outputting an operation command signal to the drive... Agent: Nixon & Vanderhye, PC

20090237051 - Dc-dc boost converter: A DC-DC boost converter is provided that generally maintains discontinuous mode operation in a generally efficient manner. To accomplish this, a clamp generator, comparator, logic gates, a flip-flop, and counter are employed. These components generally operate together to determine if an over-limit condition has taken place, so that the ON... Agent: Texas Instruments Incorporated

20090237048 - Power management circuit and method of frequency compensation thereof: A power management circuit includes a regulator circuit, a first frequency compensation circuit, a first switch circuit and a detection circuit. The regulator circuit includes a signal output end. The first switch circuit is turned on in response to an enabled first control signal such that the first frequency compensation... Agent: Bacon & Thomas, PLLC

20090237047 - Switching power source: (Means for Solving the Problem) A switching power source according to the present invention comprises a switching power source controller including a soft start circuit; an output stage including a coil, a switching device, driven by an output from the switching power source controller, for controlling a current flowing in... Agent: Harrity & Harrity, LLP

20090237050 - Switching power supply: A switching power supply, which operates intermittently under a light load for suppressing electric power consumption, reduces output voltage variations caused when a load current increases rapidly from a light load state, and reduces output voltage ringing. The switching power supply includes a comparator that compares a feedback signal obtained... Agent: Rabin & Berdo, PC

20090237054 - Digital control of power converters: A system and method for controlling a power converter is presented. An embodiment comprises an analog differential circuit connected to an analog-to-digital converter, and comparing the digital error signal to at least a first threshold value. If the digital error signal is less than the first threshold value, a pulse... Agent: Slater & Matsil, L.L.P.

20090237053 - High efficiency voltage regulator with auto power-save mode: A DC-to-DC converter comprises an error amplifier, a comparator, a PWM controller, a power switch unit, and a control signal monitoring circuit. The PWM controller receives a comparison signal from the comparator and generates a digital control signal that controls the power switch unit such that the DC-to-DC converter supplies... Agent: Imperium Patent Works

20090237055 - Power supply device capable of stably supplying output voltage with increased responsiveness: In a power supply device, a synchronous rectifier step-down converter alternately turns on and off a switch and a synchronous rectifier switch. A reference voltage generator generates a predetermined reference voltage. An error amplifier outputs an error voltage such that an output voltage of the step-down converter approaches the predetermined... Agent: Cooper & Dunham, LLP

20090237056 - Transient processing mechanism for power converters: Transient processing mechanisms for power converters. Error generation circuitry in a power converter may generate an error signal based on the difference between a power converter output voltage and a reference voltage. Transient detection circuitry may detect whether the error signal exceeds at least a first threshold. If the first... Agent: Jeffrey C. Hood Meyertons Hood Kivlin Kowert & Goetzel PC

20090237057 - Apparatus, system, and method for an adaptive high efficiency switching power supply: An apparatus, system, and method are disclosed for an adaptive high efficiency switching power supply. The switching power supply has a regulation stage with a stage controller that operates to regulate a voltage of the regulation stage relative to a reference voltage. A power detection module detects an amount of... Agent: Kunzler & Associates

20090237058 - Adaptive ramp compensation for current mode-dc-dc converters: A current-mode controller comprises an inductance element, at least one semiconductor switch coupled to the inductance element, and a ramp compensator coupled to sense an indication of current through the inductance element and coupled to control the at least one semiconductor switch that senses current during on-time of the DC-DC... Agent: Koestner Bertani LLP

20090237060 - Switching power supply control: A switching power supply controller includes a comparator to compare a feedback signal to a first limit and a second limit, one of which includes a ramp. Limit generators may be used to generate limit signals in response to power supply signals, control signals, and/or output signals. An error amplifier... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090237059 - Synchronous rectifying dc-dc converter: There is provided a dead time control method capable of recognizing a critical situation in which a commutating transistor cannot be turned on because of a temporary variation in an output voltage of a synchronous rectifying DC-DC converter and adaptively preventing the commutating transistor from being turned on. The synchronous... Agent: Oliff & Berridge, PLC

20090237061 - Dc-dc conversion device with digitally controlled comparator: A DC-DC conversion device is provided. The DC-DC conversion device includes a control signal generator, a conversion module and a comparison module. The control signal generator generates a control signal according to a delay signal. The conversion module is coupled to the control signal generator to convert an input voltage... Agent: Muncy, Geissler, Olds & Lowe, PLLC

20090237062 - Single-chip common-drain jfet device and its applications: A single-chip common-drain JFET device comprises a drain, two gates and two source arranged such that two common-drain JFETs are formed therewith. Due to the two JFETs merged within a single chip, no wire bonding connection is needed therebetween, thereby without parasitic inductance and resistance caused by bonding wire, and... Agent: Rosenberg, Klein & Lee

20090237063 - In-circuit programming of output voltage and output current characteristics of a psr power supply: A primary-side regulation (PSR) controller integrated circuit includes a PSR CC/CV controller and a non-volatile shift register. An assembled power supply that includes the integrated circuit is in-circuit tested to determine errors in power supply output voltage and/or current. Programming information is determined and shifted into the shift register. During... Agent: Imperium Patent Works

20090237064 - Switched mode power supply for a transmitter: A switched mode power supply (SMPS) suitable for use with a transmitter is disclosed. A digital signal processing unit, using a reference voltage and a voltage signal from the power source as inputs, determines the duty cycle for a voltage converter, such as a buck-boost converter, of the SMPS.... Agent: Harrington & Smith, PC

20090237065 - Push-on/push-off power-switching circuit: An electrical power-switching circuit controls power to an electronic device. In some embodiments, the circuit consists of only transistors, resistors, and capacitors, making it small, low cost, and functional over a wide range of supply voltages. The circuit may be switched on and off by a momentary-contact switch. The circuit... Agent: Pololu Corporation

20090237066 - Current transformer with impedance compensation and associated method: An impedance-compensated current transformer comprising a primary winding, a power source electrically coupled through the primary winding; a secondary winding magnetically coupled to the first primary winding, the secondary winding having a secondary winding impedance and a secondary winding resistance; and an impedance-compensation circuit electrically coupled across the secondary winding;... Agent: Lott & Friedland, P.A.

20090230929 - Bridgeless pfc circuit for crm and controlling method thereof: The configurations of a bridgeless PFC circuit system and a controlling method thereof are provided. The proposed system includes a bridgeless PFC circuit having a first and a second input terminals, a first switch having a first terminal, a first inductor having a first terminal coupled to the first input... Agent: Volpe And Koenig, P.C.

20090230930 - Adaptive power supply and related circuitry: A power supply configuration includes a monitor circuit to monitor an output voltage and output current of a power supply. The output voltage can be used to supply power to a dynamic load. The power supply varies a rate of changing an adaptive output voltage reference value that tracks the... Agent: Barry W. Chapin, Esq. Chapin Intellectual Property Law, LLC

20090230932 - Quick response width modulation for a voltage regulator: A per-phase quick response generation circuit generates a quick response signal to determine a quick response pulse to be inserted into a pulse width modulation signal of the corresponding phase. The quick response pulse will force the upper power switch of the corresponding phase on to increase the current supply... Agent: Rosenberg, Klein & Lee

20090230931 - Voltage adjusting apparatus: The invention discloses a voltage adjusting apparatus including a power adaptor, a first resistor, a current detecting module, a second resistor, and a voltage feedback controlling module. The power adaptor outputs a first current first. The first resistor is used to convert the first current to a first voltage. The... Agent: Morris Manning Martin LLP

20090230933 - Hybrid on-load tap changer and a method of operating the same: A hybrid on-load tap changer, for use in high voltage alternating current power transmission, including a selector and a diverter having two legs defining respective current paths. Each leg includes a pair of opposed first and second semiconductor switches. The hybrid on-load tap changer also includes a controller configured to... Agent: Oblon, Spivak, Mcclelland Maier & Neustadt, P.C.

20090230936 - Method of improved current sensing in dc-dc converters: A DC-DC converter includes a chip including an error amplifier and a pulse width modulator (PWM) having an input connected to an output of the error amplifier, and an inductor driven by said PWM in series with an output node (VOUT) of the converter, wherein a load current flows through... Agent: Fogg & Powers LLC

20090230935 - Step-down switching dc-dc converter: A step-down switching DC-DC converter may include an input coil on the input side, an output coil on the output side, a switch, an output capacitor, a first series circuit connected between a connection point on which the input coil and the switch are connected each other and a negative... Agent: Nec Corporation Of America

20090230934 - Switched mode voltage converter with low-current mode and methods of performing voltage conversion with low-current mode: A voltage conversion circuit for a host electronic device includes a buck converter circuit having an input terminal coupled to a first node and having an output terminal coupled to a second node, a switched capacitor voltage converter circuit having an input coupled to the first node and an output... Agent: Myers Bigel Sibley & Sajovec, P.A.

20090230938 - Electric power conversion apparatus: In an electric power conversion apparatus, there is reduced deterioration in insulation of a means which is provided inside an IC chip and transmits a signal from a low electric potential system to a high electric potential system. The electric power conversion apparatus includes a lower-arm circuit 14 which transmits... Agent: Crowell & Moring LLP Intellectual Property Group

20090230937 - Power factor correction circuit and power supply apparatus thereof: A power factor correction circuit including a boost converter, a first capacitor, a first resistor, and a boost control unit is provided. The boost control unit includes a signal generator and a frequency controller. The boost converter transforms a rectified voltage to a correction voltage according to a pulse width... Agent: J C Patents, Inc.

20090230939 - Switching converter: To improve conversion efficiency at a DC-DC conversion time by providing driving units respectively for a plurality of switches and controlling the switches corresponding to a load current, an input voltage, an output voltage and an input/output voltage difference. When synchronously rectifying a plurality of first switches and a plurality... Agent: Staas & Halsey LLP

20090230940 - Voltage regulation system using abrupt metal-insulator transition: Provided is a voltage regulation system using an abrupt metal-insulator transition (MIT), which can regulate various zener voltages and can be easily manufactured. The voltage regulation system includes: an input power source: a series resistor connected in series to the input power source; and an MIT insulator connected in series... Agent: Rabin & Berdo, PC

20090230941 - Welding or cutting power supply using phase shift double forward converter circuit (psdf): A technique for dynamically adjusting an output voltage for a welding or cutting operation is provided. The technique allows for varying output voltage at the welding or cutting torch by manipulating the duty cycles of two forward converter circuits. The present disclosure provides methods and systems for increasing synchronized duty... Agent: Fletcher Yoder (illinois Tool Works Inc.)

20090230943 - Apparatus and method for controlling voltage of semiconductor integrated circuit: A device for controlling a voltage of a semiconductor integrated circuit includes a voltage selecting unit that generates a voltage selecting signal for selecting a voltage to be controlled among a plurality of voltages by using a first control signal, a control step selecting unit that generates a control step... Agent: Baker & Mckenzie LLP Patent Department

20090230944 - Electronic device: An electronic device is provided with an electronic device main unit, a power supply unit which has a power generator having a fuel cell unit, and supplies electric power to the main unit, and a switching unit which is connected between the main unit and the power supply unit, and... Agent: Finnegan, Henderson, Farabow, Garrett & Dunner LLP

20090230942 - Voltage generator having a dynamic resistors feedback control: A voltage generator includes a charge pump, a voltage dividing circuit, and a comparator. The charge pump can output a high voltage. The dividing circuit includes a plurality of resistors and at least one switch. The dividing circuit can generate a first divided voltage of the high voltage when the... Agent: North America Intellectual Property Corporation

20090224729 - Dynamic voltage compensator used in three-phase power supply system: At least one embodiment of the present invention proposes a dynamic voltage compensator for compensating voltage fluctuations in a three-phase power supply system. In at least one embodiment, the dynamic voltage compensator includes two dynamic voltage restorers (DVR), and two phases are selected arbitrarily from the three-phase power supply system... Agent: Harness, Dickey & Pierce, P.L.C

20090224730 - Variable liftoff voltage process field device: A field transmitter includes field device circuitry configured to measure or control a process variable. A first process control loop terminal is configured to couple to a two-wire process control loop which carries a loop current. A second process control loop terminal configured to couple to the two-wire process control... Agent: Westman Champlin & Kelly, P.A.

20090224731 - Multiphase power regulator with load adaptive phase control: A current sense circuit senses the current at each phase, a summing circuit coupled to the output of the current sense circuit provides the total current value of all the measured phases, a circuit coupled to the output of the summing circuit provides the time averaged total current value to... Agent: The Noblitt Group, PLLC

20090224732 - Power supply unit: To provide a power supply unit capable of realizing a multiphase power supply at low cost. For example, each of a plurality of semiconductor devices DEV[1]-DEV[n] comprises a trigger input terminal TRG_IN, a trigger output terminal TRG_OUT, and a timer circuit TM that delays a pulse signal input from TRG_IN... Agent: Mattingly & Malur, P.C.

20090224733 - Methods and apparatus for a power supply: Methods and apparatus for a power supply according various aspects of the present invention operate in conjunction with a voltage converter for converting an input voltage to an output voltage. For example, the converter may comprise an output controller configured to generate a control signal, a power mode controller, and... Agent: The Noblitt Group, PLLC

20090224734 - Methods and apparatus for power supply: Methods and apparatus for a power supply according various aspects of the present invention operate in conjunction with a voltage converter for converting an input voltage to an output voltage. For example, the converter may comprise a controller configured to generate a control signal and an integrated power stage. The... Agent: The Noblitt Group, PLLC

20090224735 - Filter circuit and method of controlling same: Disclosed is a filter circuit that includes means for monitoring currents flowing through positive and negative windings of a common-mode noise filter, and means for performing an adjustment based on the result of monitoring so as to equalize the current flowing positive and negative windings.... Agent: Nec Corporation Of America

20090224736 - Method and circuit for an operating area limiter: The present invention relates to circuits and methods for limiting the operating area of a transistor in a constant current source. The circuits and methods use a detector and a driver to limit the operating area of a transistor. The detector and driver have parameters selected so that, when the... Agent: Turocy & Watson, LLP

20090224737 - Voltage regulator with local feedback loop using control currents for compensating load transients: A voltage regulator with a local feedback loop is disclosed, which provides adaptive control currents responsive to load transient to regulate abrupt voltage variations. The voltage regulator has an amplifier having a first input coupled to a reference voltage, a second input coupled to a feedback signal, and an output... Agent: Thomas, Kayden, Horstemeyer & Risley, LLP

20090224739 - Heavily doped region in double-diffused source mosfet (ldmos) transistor and a method of fabricating the same: A transistor includes a source, a drain and a gate. The source includes a p-doped p-body, a p+ region overlapping the p-body, an n+ region overlapping the p-body in proximity to the p+ region, and an n-doped source, heavily double-diffused (SHDD) region, only into the source region of the transistor,... Agent: Fish & Richardson P.C.

20090224738 - Switching controller: A circuit is provided for providing a drive signal. The circuit comprises a live input and a neutral input, an output for providing a drive signal, a master logic gate. The first output is connected to the master logic gate output. A dc signal is connected to the input of... Agent: Ballard Spahr Andrews & Ingersoll, LLP

20090224740 - Voltage regulator: A voltage regulator stably operates even when an operating current of a differential amplifier circuit is increased according to an output current. In the voltage regulator, a current mirror circuit for detecting the output current and increasing the operating current of the differential amplifier circuit is provided with a function... Agent: Bruce L. Adams, Esq Adams & Wilks

20090224742 - Circuit arrangement and method for controlling power converters: A circuit arrangement for controlling power converters with a microcontroller comprises a digitally controlled pulse width modulation unit having an output, at which a switching signal for switching a power converter switch is present, wherein the circuit arrangement has an analog circuit part for switching on a power converter switch... Agent: Cohen, Pontani, Lieberman & Pavane LLP

20090224741 - Low power supply maintaining circuit: A circuit may include a load that is configured to enter a low power mode, a capacitor that is operably coupled to the load and that is configured to provide a minimum voltage and current for the load to maintain its state while in the low power mode, a finite... Agent: Brake Hughes Bellermann LLP C/o Cpa Global

20090224743 - Dc-to-dc converter and method therefor: In one embodiment a switched capacitor dc-dc converter uses the load current to assist in determining a supply configuration to use to form the output voltage.... Agent: Semiconductor Components Industries, LLC Intellectual Property Dept. - A700

20090224744 - Controlling switching noise of an inductively loaded thyristor: Systems and/or methods that facilitate controlling a rate of voltage change across an inductively loaded thyristor when switched are presented. Based on a received control signal indicating a thyristor is to be switched, a control component controls the rate of voltage change across a thyristor associated with an inductive load... Agent: Turocy & Watson, LLP

20090224745 - Dc-dc converter: A DC-DC converter includes an error amplifying circuit to output an error signal by amplifying differences between a reference voltage and a feedback voltage for an output voltage generated by switching an output transistor between on and off, a triangular wave generation circuit to generate a triangular wave, a PWM... Agent: Cooper & Dunham, LLP

20090224746 - Correcting circuit, correcting method, and sensor apparatus: A correcting circuit includes a correction current synthesizer synthesizing a correction current based on an output signal of a sensor, a current adjuster adjusting a determining current which corresponds to a correction amount based on the correction current, and a correction voltage generator generating a correction voltage for correcting a... Agent: Arent Fox LLP

20090218993 - Device and a method for control of power flow in a transmission line: A device for control of power flow in a three-phase ac transmission line. The device includes a series transformer unit, a shunt transformer unit, and a reactance unit.... Agent: Venable LLP

20090218994 - Resonance dc/dc converter and control method thereof: The present invention refers to a method for controlling a resonance DC/DC converter, which adjusts an output voltage by changing a turn-on frequency of input switch devices of a resonance circuit of the converter, and extends the range of the output voltage of the resonance circuit by adjusting the duty... Agent: Harness, Dickey & Pierce, P.L.C

20090218995 - Apparatus and method for bias modulator using zero current switching: An apparatus and a method for a bias modulator using a Zero Current Switching (ZCS) are provided. The bias modulator includes a Pulse Width Modulation (PWM) signal generator for converting an input envelope signal to a PWM signal; a PWM/ZCS converter for calculating the number of ZCS control signals to... Agent: Docket Clerk

20090218996 - Switching systems and methods with current sensing: Embodiments of the present invention include an electronic circuit for performing current sensing. In one embodiment, the present invention includes a first switching transistor and a second switching transistor both coupled to receive a first switching current and a switching signal, and one or more transistors coupled in a first... Agent: Fountainhead Law Group, PC

20090218997 - Power supply circuit: In one embodiment, a current limiter is configured to limit current drawn from a main power supply to a maximum value. A load device is coupled with an output of the current limiter. The load device is configured to periodically draw a first current during operation. The maximum value is... Agent: Brinks Hofer Gilson & Lione

20090218999 - Dc converter which has switching control unit to select pwm signal or pfm signal: A DC (direct current) converter includes a PWM (pulse width modulation) pulse generation unit outputting a PWM pulse signal whose duty ratio is controlled in accordance with an output voltage, a PFM (pulse frequency modulation) pulse generation unit outputting a PFM pulse signal whose pulse output interval is controlled in... Agent: Mcginn Intellectual Property Law Group, PLLC

20090219001 - Drive controller for power conversion circuit: A drive controller is provided, for controlling driving of a power conversion circuit. The power control circuit includes a switching element for increasing/decreasing an absolute value of current passing through a coil by repeating electrical ON/OFF operation, so that voltage of power storage means is converted to a desired value... Agent: Nixon & Vanderhye, PC

20090218998 - High-side sensing of zero inductor current for step down dc-dc converter: A DC to DC converter circuit includes circuitry for generating a PWM waveform signal at a phase node of a DC to DC converter responsive to an input voltage and a monitor output voltage. The circuitry further includes a high side switching transistor connected between the input voltage and a... Agent: Howison & Arnott, L.l.p

20090219000 - Switching controller with burst mode management circuit to reduce power loss and acoustic noise of power converter: A switching controller of power converter according to the present invention comprises a PWM circuit and a burst-mode management circuit to reduce the power loss and the acoustic noise of the power converter at light-load. The PWM circuit generates a PWM signal. The burst-mode management circuit receives the PWM signal... Agent: Sinorica, LLC

20090219002 - Switching power supply device and a semiconductor integrated circuit: A capacitor is disposed between the output side and the ground potential of an inductor which creates an output voltage. A first switch element supplies a current from an input voltage to an input side of the inductor, and a second switch element which is turned on when the first... Agent: Mattingly & Malur, P.C.

20090219003 - Offline synchronous switching regulator: An offline synchronous switching regulator is proposed for improving the efficiency thereof. Switches are coupled to switch a transformer and generate a switching signal at a secondary side of the transformer. A switching circuit is coupled to an output of the regulator to generate pulse signals in response to the... Agent: Jianq Chyun Intellectual Property Office

20090219004 - Power supply control device and power supply control method: A power supply control device includes a boost type power supply controller boosting an input voltage, a step down power supply controller reducing an output of the boost type power supply controller to output an output voltage, a first control loop including the boost type power supply controller, and a... Agent: Arent Fox LLP

20090219005 - Load control device having a trigger circuit characterized by a variable voltage threshold: A two-wire load control device, such as a dimmer, is operable to control the amount of power delivered to an electrical load, such as a magnetic low-voltage (MLV) load, and comprises a bidirectional semiconductor switch, a timing circuit, a trigger circuit having a variable voltage threshold, and a clamp circuit.... Agent: Lutron Electronics Co., Inc. Mark E. Rose

20090219006 - Electric power converter: An electric power converter facilitates performing soft switching in the two-way electric-power-conversion operation thereof, and reducing the manufacturing costs thereof and the losses caused therein, The electric power converter includes a first switching device; a second switching device; a first series circuit including capacitor, a diode, the primary winding of... Agent: Kanesaka Berner And Partners LLP