patentstorm.us 258 85 http://www.patentstorm.us/ http://www.patentstorm.us/images/logo.gif PatentStorm -> Applications -> Electric power conversion systems http://www.patentstorm.us/rss/class/applications/rss-363.xml Recent patent applications filings in USPTO Class 363 Electric power conversion systems. Thu, 16 Feb 2012 15:02:40 patents@patentstorm.us en <![CDATA[SINGLE-STAGE AC/DC CONVERTER]]> http://www.patentstorm.us/applications/20120039103/description.html
  • Application Number:  20120039103
  • Publication Date:  2012-02-16
  • Inventors:  Xu, Ming; Sun, Julu; Sun, Chao
    • A single-stage AC/DC converter is provided, and which includes a power-frequency follow-current circuit, an isolated transmission circuit (ITC), a high-frequency chopper modulation circuit (HFCMC), a power-frequency and high-frequency AC rectifying-circuit and a filter-circuit. The input of the ITC is connected to the output of an external power-frequency power source, the current-modulating side of the ITC is connected to the input of the HFCMC, the output of the ITC is connected to the input ...
    ]]>     20120039103     <![CDATA[WIRELESS POWER TRANSFER TERMINAL]]> http://www.patentstorm.us/applications/20120039102/description.html
  • Application Number:  20120039102
  • Publication Date:  2012-02-16
  • Inventor:  SHINODA, Satoshi
    • This disclosure provides a wireless power transfer terminal that enables a power device to be used for both power transmission and power reception and allows space savings of circuits and a reduction in the cost of manufacturing. The wireless power transfer terminal includes first through fourth switching elements, a coil, and a control circuit. Each of two sets of switching elements forms a series circuit, and the two sets are connected in parallel to each other. The coil is connected between ...
    ]]>     20120039102     <![CDATA[Method of and Apparatus for Connecting a Photovoltaic Device to an AC Power Grid]]> http://www.patentstorm.us/applications/20120039101/description.html
  • Application Number:  20120039101
  • Publication Date:  2012-02-16
  • Inventors:  Falk, Andreas; Arend, Oliver; Reichenbaecher, Wolfgang; Greizer, Frank; Laschinski, Joachim; Simon, Peter
    • A method of connecting a photovoltaic device to an AC power grid through an inverter includes monitoring a DC voltage at an input of an inverter, and activating the inverter when the monitored DC voltage exceeds a first predetermined threshold. The method further includes synchronizing an output voltage of the inverter with a grid voltage, connecting an output of the inverter to the AC power grid upon synchronization if the monitored DC voltage exceeds a second predetermined threshold, and ...
    ]]>     20120039101     <![CDATA[POWER CONVERSION DEVICE, METHOD OF CONTROLLING POWER CONVERSION DEVICE, AND VEHICLE WITH THE SAME MOUNTED THEREON]]> http://www.patentstorm.us/applications/20120039100/description.html
  • Application Number:  20120039100
  • Publication Date:  2012-02-16
  • Inventor:  Hirose, Satoshi
    • In a power conversion device of a vehicle, when a collision of a vehicle is detected, the voltage of a gate signal that drive a semiconductor switching element included in the power conversion device is decreased, and residual charge stored in a smoothing capacitor is discharged. Such a configuration increases switching loss when the semiconductor switching element is turned on or off during discharge of the residual charge in the power conversion device, so that discharge of the residual ...
    ]]>     20120039100     <![CDATA[POWER CONDITIONING UNIT]]> http://www.patentstorm.us/applications/20120039099/description.html
  • Application Number:  20120039099
  • Publication Date:  2012-02-16
  • Inventor:  Rodriguez, Cuauhtemoc
    • The present invention relates to a power conditioning unit for delivering power from a dc power source to an ac output, particularly ac voltages greater than 50 volts, either for connecting directly to a grid utility supply, or for powering mains devices independent from the mains utility supply. We describe a power conditioning unit for delivering power from a dc power source to an ac mains output, the power conditioning unit comprising an input for receiving power from said dc power source, ...
    ]]>     20120039099     <![CDATA[Controller for a Power Converter and Method of Operating the Same]]> http://www.patentstorm.us/applications/20120039098/description.html
  • Application Number:  20120039098
  • Publication Date:  2012-02-16
  • Inventor:  Berghegger, Ralf Schroeder genannt
    • A controller for a power converter and method of operating the same. In one embodiment, the controller includes a peak detector, coupled to a circuit element of the power converter, configured to produce a signal corresponding to a peak current through a circuit element. The controller also includes an adjustable reference circuit responsive to a difference between the signal and a reference signal corresponding to a desired peak current to produce a corrected signal corresponding to the peak ...
    ]]>     20120039098     <![CDATA[METHOD AND APPARATUS FOR SENSING MULTIPLE VOLTAGE VALUES FROM A SINGLE TERMINAL OF A POWER CONVERTER CONTROLLER]]> http://www.patentstorm.us/applications/20120039097/description.html
  • Application Number:  20120039097
  • Publication Date:  2012-02-16
  • Inventors:  Djenguerian, Alex B.; Balakrishnan, Balu
    • An example controller for a power converter includes a switching control coupled to switch a power switch of the power converter to control a transfer of energy from an input of the power converter to an output of the power converter. A sensor is coupled to sample a single terminal of the controller during a portion of an off time of the power switch to output a signal representative of an output voltage of the power converter. The sensor is further coupled to sample the single terminal during ...
    ]]>     20120039097     <![CDATA[High Voltage Startup Circuit]]> http://www.patentstorm.us/applications/20120039096/description.html
  • Application Number:  20120039096
  • Publication Date:  2012-02-16
  • Inventor:  Dunipace, Richard A.
    • In one embodiment, a startup circuit for a power supply is provided. The startup circuit comprises a resistance coupled between a voltage source and a first node. A first capacitor, coupled to the first node, is operable to be charged by current flowing through the resistance. A first transistor has an emitter, a base, and collector, wherein the collector is coupled to the voltage source and the base is coupled to the first node. A diac circuit. coupled to the emitter of the first transistor, ...
    ]]>     20120039096     <![CDATA[BOOST CONVERTER]]> http://www.patentstorm.us/applications/20120039095/description.html
  • Application Number:  20120039095
  • Publication Date:  2012-02-16
  • Inventors:  KIM, Hyo Young; KIM, Jong Rak; OH, Sung Hun; PARK, Jeong Hyun
    • There is provided a boost converter capable of reducing internal pressure in elements without the employment of a separate snubber by clamping a voltage, transmitted to the elements, to a charging voltage or an output voltage during power conversion. The boost converter includes a transformer including a primary winding receiving input power and a secondary winding electromagnetically coupled to the primary winding and having a predetermined turns ratio therewith; a switching part allowing the ...
    ]]>     20120039095     <![CDATA[INTERLEAVED TYPE POWER FACTOR CORRECTION CIRCUIT HAVING TRANSFORMER FORMING SEPARATED WINDING STRUCTURE]]> http://www.patentstorm.us/applications/20120039094/description.html
  • Application Number:  20120039094
  • Publication Date:  2012-02-16
  • Inventors:  LEE, Sung Uk; SHIN, Yun Seop
    • There is provided an interleaved type power factor correction circuit having a transformer forming a separated winding structure, which is formed by integrating two inductors separately wound around the transformer. The interleaved type power factor correction circuit including a rectifying unit rectifying a commercial alternating current power, a transformer having a first inductor winding and a second inductor winding, a bobbin part, and a core part, a switching unit switching a power ...
    ]]>     20120039094     <![CDATA[SYSTEMS AND METHODS FOR OFF-TIME CONTROL IN A VOLTAGE CONVERTER]]> http://www.patentstorm.us/applications/20120039093/description.html
  • Application Number:  20120039093
  • Publication Date:  2012-02-16
  • Inventors:  Wiggenhorn, John R.; Sheng, Lin; Miftakhutdinov, Rais K.; Tumasz, Steven; Liang, Jin
    • Various embodiments of the present invention provide voltage converters and methods for using such. As one example, a voltage converter is disclosed that includes a transformer with a first winding and a second winding. A voltage is applied to the first winding for a period that is followed by an OFF time. The voltage converter further includes an OFF time controller that is operable to adjust the OFF time based at least in part on a load current traversing the second ...
    ]]>     20120039093     <![CDATA[CURRENT-INPUT-TYPE PARALLEL RESONANT DC/DC CONVERTER AND METHOD THEREOF]]> http://www.patentstorm.us/applications/20120039092/description.html
  • Application Number:  20120039092
  • Publication Date:  2012-02-16
  • Inventors:  Xu, Ming; Sun, Julu
    • A current-input-type parallel resonant DC/DC converter and a method thereof are provided. The converter includes an inverter-circuit for inverting/converting an input DC current into a positive-and-negative alternating square-wave-current, a resonant-network for converting the square-wave-current into a sine-voltage, a transformer for realizing the isolation of the power transmission, a full-wave rectifier-circuit for rectifying the sine-voltage, and an output-filter-circuit for producing a DC ...
    ]]>     20120039092     <![CDATA[CONTROLLABLE RECTIFICATION DEVICE AND ELECTRIC MOTOR COMPRISING THE SAME]]> http://www.patentstorm.us/applications/20120038296/description.html
  • Application Number:  20120038296
  • Publication Date:  2012-02-16
  • Inventor:  JIANG, Xianhong
    • The present invention discloses a controllable rectification comprising an inverter (10), a control panel (20) and a drive panel (30). The inverter (10) may comprise three switch element groups connected in parallel. Each switch element group may comprise at least two switch elements connected in parallel. Each switch element may comprise an upper bridge-arm switch and a lower bridge-arm. The control panel (20) may generate a PWM waveform. The drive panel ...
    ]]>     20120038296     <![CDATA[RECONFIGURABLE POWER CONVERTER MODULE]]> http://www.patentstorm.us/applications/20120038167/description.html
  • Application Number:  20120038167
  • Publication Date:  2012-02-16
  • Inventors:  Kjaer, Philip Carne; Helle, Lars
    • The present invention relates to a reconfigurable power converter module for a wind turbine facility adapted to supply electric power to an associated power supply grid. The reconfigurable power converter module comprises a frequency converter operatively connected to filter means, wherein said frequency converter and said filter means are mutually reconfigurable so as to suppress internal and/or internal ...
    ]]>     20120038167     <![CDATA[POWER INVERTER]]> http://www.patentstorm.us/applications/20120037616/description.html
  • Application Number:  20120037616
  • Publication Date:  2012-02-16
  • Inventors:  Shimada, Ryuichi; Kitahara, Tadayuki; Fukuda, Shiro; Isobe, Takanori
    • A power inverter (1) is provided with a full-bridge circuit (10), a shunt capacitor (CP), and a control circuit (20). The control circuit (20) controls the on/off state of each reverse-conductive semiconductor switch (SW1 to SW4) at a switching frequency of not more than the resonance frequency determined by the capacitance of the shunt capacitor (CP) and the inductance of an inductive load (LD) in such a matter than when a first reverse-conductive ...
    ]]>     20120037616     <![CDATA[INVERTER CIRCUIT, POWER CONVERTER CIRCUIT, AND ELECTRIC VEHICLE]]> http://www.patentstorm.us/applications/20120033476/description.html
  • Application Number:  20120033476
  • Publication Date:  2012-02-09
  • Inventor:  Endo, Masami
    • An object is to reduce, with the control circuit of the full-bridge inverter circuit, distortions in an output signal of the inverter circuit resulting from an error in control of the switching of the high-side transistors and low-side transistors included in the first half-bridge circuit and the second half-bridge circuit. The pulse width of a signal that controls ON/OFF of the high-side transistors and low-side transistors included in the first half-bridge circuit and the second half-bridge ...
    ]]>     20120033476     <![CDATA[POWER CONVERSION APPARATUS]]> http://www.patentstorm.us/applications/20120033475/description.html
  • Application Number:  20120033475
  • Publication Date:  2012-02-09
  • Inventors:  Saito, Ryuichi; Nakatsu, Kinya; Tokuyama, Takeshi
    • Technology leading to a size reduction in a power conversion apparatus comprising a cooling function and technology relating to enhancing productivity and enhancing reliability necessary for commercial production are provided. Series circuits comprising an upper arm and lower arm of an inverter circuit are built in a single semiconductor module 500. The semiconductor module has cooling metal on two sides. An upper arm semiconductor chip and lower arm semiconductor chip are wedged between ...
    ]]>     20120033475     <![CDATA[HIGHLY EFFICIENT HALF-BRIDGE DC-AC CONVERTER]]> http://www.patentstorm.us/applications/20120033474/description.html
  • Application Number:  20120033474
  • Publication Date:  2012-02-09
  • Inventors:  Frisch, Michael; Temesi, Ernö
    • The invention relates to a DC to AC converter circuit. In particular, the invention relates to a half-bridge inverter for converting a DC to an AC voltage. The half-bridge inverter for converting a DC input voltage to provide an AC output voltage at an output terminal, comprising a first switching circuit connected to at least one input terminal and to the output terminal and configured to provide a high or a low voltage level at the output terminal; a second switching circuit connected to the ...
    ]]>     20120033474     <![CDATA[SYSTEMS AND METHODS FOR ELECTRICAL POWER GRID MONITORING USING LOOSELY SYNCHRONIZED PHASORS]]> http://www.patentstorm.us/applications/20120033473/description.html
  • Application Number:  20120033473
  • Publication Date:  2012-02-09
  • Inventor:  Scharf, Mesa P.
    • The present disclosure describes systems and methods for monitoring an electrical power grid using loosely synchronized phasors. The grid can include a phasor measurement unit (PMU) that keeps a highly-accurate time, such as a time provided by GPS signals. A solar power inverter can include a clock that is synchronized to a less-accurate time, such as a time provided by a public time server or a radio time signal. The inverter can also include a PMU that generates phasors timestamped according ...
    ]]>     20120033473     <![CDATA[Multi-Phase Drive System]]> http://www.patentstorm.us/applications/20120033472/description.html
  • Application Number:  20120033472
  • Publication Date:  2012-02-09
  • Inventors:  Daskalos, Mike; Oka, Toshiaki; Kleinecke, John
    • A drive system for driving a multi-phase motor (such as a three-phase AC motor) or other load. Where a transformer is used, the transformer may have a disconnected wye configuration on the secondary side. The system may also utilize the average or other combination of DC bus voltages of inverters for each load phase, to provide feedback ...
    ]]>     20120033472     <![CDATA[TWO-WIRE DIMMER SWITCH FOR LOW-POWER LOADS]]> http://www.patentstorm.us/applications/20120033471/description.html
  • Application Number:  20120033471
  • Publication Date:  2012-02-09
  • Inventor:  Newman, JR., Robert C.
    • A two-wire load control device (such as, a dimmer switch) for controlling the amount of power delivered from an AC power source to an electrical load (such as, a high-efficiency lighting load) includes a thyristor coupled between the source and the load, a gate coupling circuit coupled between a first main load terminal and the gate of the thyristor, and a control circuit coupled to a control input of the gate coupling circuit. The control circuit generates a drive voltage for causing the gate ...
    ]]>     20120033471     <![CDATA[METHOD OF CONTROLLING POWER CONVERSION DEVICE]]> http://www.patentstorm.us/applications/20120033470/description.html
  • Application Number:  20120033470
  • Publication Date:  2012-02-09
  • Inventors:  Muneshima, Masakazu; Yamamoto, Yasuhiro; Sasaki, Yu; Sugai, Takuya; Shigaki, Akira
    • A correction-term adder 1 compares a maximum value max(V*) with an absolute value of a minimum value min(V*). The correction-term adder 1 selects a signal 1−max(V*) when the maximum value max(V*) is larger than the absolute value of the minimum value min(V*), on the other hand, selects a signal −1−min(V*) when the absolute value of the minimum value min(V*) is larger than the maximum value max(V*). Thereby, a signal of correction amount α is calculated. Moreover, the correction-term ...
    ]]>     20120033470     <![CDATA[Electric Power Conversion System Having An Adaptable Transformer Turns Ratio For Improved Efficiency]]> http://www.patentstorm.us/applications/20120033469/description.html
  • Application Number:  20120033469
  • Publication Date:  2012-02-09
  • Inventors:  Mohr, David Paul; Bemat, Mohamed Amin; Domingo, Reynaldo P.
    • An electric power conversion system has an adaptable transformer turns ratio for improved efficiency. The transformer has multiple taps on its primary. Switching circuitry is configured to connect an energy source to the taps in at least two modes such that the transformer operates with a first primary-to-secondary turns ratio in the first mode and with a second primary-to-secondary turns ratio in the second mode. The first turns ratio is greater than the second turns ratio. Control circuitry ...
    ]]>     20120033469     <![CDATA[POWER CONVERSION SYSTEMS]]> http://www.patentstorm.us/applications/20120033468/description.html
  • Application Number:  20120033468
  • Publication Date:  2012-02-09
  • Inventors:  Folts, Douglas C.; Kehrli, Arnold P.
    • In a general aspect, a power conversion system includes a power converter, a transformer, and a voltage adjustment device. The power converter is configured to receive a variable DC power generated by a power generation device and to convert the received DC power to AC power at a first voltage. The transformer is configured to receive the AC power from the power converter and to deliver AC power at a second voltage to a utility power network. The voltage adjustment device is configured to ...
    ]]>     20120033468     <![CDATA[SWITCHING MODE POWER SUPPLY AND METHOD OF CONTROLLING THE SAME]]> http://www.patentstorm.us/applications/20120033467/description.html
  • Application Number:  20120033467
  • Publication Date:  2012-02-09
  • Inventor:  KIM, Kwang-wook
    • A switching mode power supply (SMPS) includes at least one transformer, a switching unit to switch a voltage applied to the at least one transformer, a snubber circuit connected to the switching unit, a first switch to control an on or off operation of the snubber circuit, and a second switch to control an on or off operation of the first ...
    ]]>     20120033467     <![CDATA[PARTIAL POWER MICRO-CONVERTER ARCHITECTURE]]> http://www.patentstorm.us/applications/20120033466/description.html
  • Application Number:  20120033466
  • Publication Date:  2012-02-09
  • Inventor:  Moussaoui, Zaki
    • A system and method for reducing the amount of power processed in a power converter during power generation is provided. In one aspect, the system includes a partial power converter connected between a set of power sources and a load. The partial power converter includes a primary power converter coupled to a first power source and a set of auxiliary power converters coupled to the remaining power sources. Moreover, the secondary power converters only process current that is necessary to ...
    ]]>     20120033466     <![CDATA[THERMAL SHUTDOWN UNIT, SWITCH CONTROLLER INCLUDING THE SAME, AND CONTROL METHOD OF THERMAL SHUTDOWN PROTECTION OPERATION]]> http://www.patentstorm.us/applications/20120033465/description.html
  • Application Number:  20120033465
  • Publication Date:  2012-02-09
  • Inventors:  JANG, Kyung-Oun; LEE, Min-Woo; CHO, Dae-Woong
    • The present invention relates to a thermal shutdown unit, a switch controller including the same, and a method controlling a thermal shutdown protection operation.

    The present invention determines the operation state of an SMPS to vary a reference temperature for controlling a thermal shutdown protection operation according to an operation state of the ...
    ]]> 20120033465 <![CDATA[Universal Power Converter]]> http://www.patentstorm.us/applications/20120033464/description.html

  • Application Number:  20120033464
  • Publication Date:  2012-02-09
  • Inventor:  Alexander, William C.
    • Methods and systems for transforming electric power between two or more portals. Any or all portals can be DC, single phase AC, or multi-phase AC. Conversion is accomplished by a plurality of bi-directional conducting and blocking semiconductor switches which alternately connect an inductor and parallel capacitor between said portals, such that energy is transferred into the inductor from one or more input portals and/or phases, then the energy is transferred out of the inductor to one or more ...
    ]]>     20120033464     <![CDATA[POWER CONDITIONING UNIT]]> http://www.patentstorm.us/applications/20120033463/description.html
  • Application Number:  20120033463
  • Publication Date:  2012-02-09
  • Inventor:  Rodriguez, Cuauhtemoc
    • The present invention relates to a power conditioning unit for delivering power from a dc power source to an ac output, particularly ac voltages greater than 50 volts, either for connecting directly to a grid utility supply, or for powering mains devices independent from the mains utility supply. We describe a power conditioning unit for delivering power from a dc power source to an ac mains output, the power conditioning unit comprising an input for receiving power from said dc power source, ...
    ]]>     20120033463     <![CDATA[POWER FLOW CONTROL IN A MESHED HVDC POWER TRANSMISSION NETWORK]]> http://www.patentstorm.us/applications/20120033462/description.html
  • Application Number:  20120033462
  • Publication Date:  2012-02-09
  • Inventor:  Juhlin, Lars-Erik
    • A meshed HVDC power transmission network comprises at least three HVDC converter stations interconnected in a first closed path by at least three transmission lines. A first DC power flow control device is series connected to a first of the at least three transmission lines. That first DC power flow control device takes its power from the first transmission line and balances the DC current distribution in the first closed ...
    ]]>     20120033462     <![CDATA[CONTROLLING A HIGH-VOLTAGE DIRECT-CURRENT (HVDC) LINK]]> http://www.patentstorm.us/applications/20120033461/description.html
  • Application Number:  20120033461
  • Publication Date:  2012-02-09
  • Inventors:  Papafotiou, Georgios; Beccuti, Giovanni; Harnefors, Lennart
    • The present disclosure is directed to a High Voltage Direct Current (HVDC) link with Voltage Source Converters VSC and interconnecting two power systems. A model-predictive control with a receding horizon policy is employed for controlling the outer loop of a two-loop or two-layer control scheme or setup for the HVDC link. The two-loop control scheme takes advantage of the difference in speed of the dynamics of the various system variables of the HVDC link and the interconnected power systems. ...
    ]]>     20120033461     <![CDATA[High-Side Synchronous Rectifier Circuits and Control Circuits for Power Converters]]> http://www.patentstorm.us/applications/20120033460/description.html
  • Application Number:  20120033460
  • Publication Date:  2012-02-09
  • Inventors:  Wang, Chou-Sheng; Su, Ying-Chieh; Hsu, Jhih-Da; Yeh, Chia-Yo; Huang, Chien-Chun
    • A control circuit for a switching power converter is provided. The control circuit is installed between a secondary side and an output of the power converter and coupled to control a switching device. The control circuit includes a linear predict circuit, a reset circuit, a charge/discharge circuit, and a PWM circuit. The linear predict circuit is coupled to receive a linear predict signal from the secondary side for generating a charging signal. The reset circuit is couple to receive a ...
    ]]>     20120033460     <![CDATA[CIRCUIT REGULATOR AND SYNCHRONOUS TIMING PULSE GENERATION CIRCUIT THEREOF]]> http://www.patentstorm.us/applications/20120033459/description.html
  • Application Number:  20120033459
  • Publication Date:  2012-02-09
  • Inventors:  Chang, Lon Kou; Wu, Chang Yu; Liu, Hsing Fu
    • A circuit regulator is used to generate a pulse-width-modulation signal, so as to control a power to be selectively input or not input to a primary side of a switching power supply. The circuit regulator includes a synchronous timing pulse generation circuit, outputs a starting pulse after performing signal process of time delay, timing pulse regulation, and synchronization control on a pulse-width-modulation signal and a discharging time signal of a secondary side, and accordingly effectively ...
    ]]>     20120033459     <![CDATA[System and Method for Power Conversion]]> http://www.patentstorm.us/applications/20120033458/description.html
  • Application Number:  20120033458
  • Publication Date:  2012-02-09
  • Inventors:  He, Yi; Lim, Kok Kee; Gong, Xiaowu; Wong, Winson Siew Teng; Teo, Yong Siang
    • A system and method for operating power supplies. A method comprises altering a current sense (CS) signal, turning off a switch of the converter in response to a determining that the CS signal is greater than or equal to a first threshold, and leaving on the switch of the converter in response to a determining that the CS signal is less than the first ...
    ]]>     20120033458     <![CDATA[HOLD-UP TIME EXTENDING CIRCUIT AND CONVERTER INCLUDING THE SAME]]> http://www.patentstorm.us/applications/20120033457/description.html
  • Application Number:  20120033457
  • Publication Date:  2012-02-09
  • Inventors:  EOM, Hyun-Chul; KIM, Jin-Tae; LEE, Kwang-Il; LI, Shanmei; LEE, Hojae
    • The present invention relates to a hold-up time expansion circuit and a converter including the same.

    The hold-up time expansion circuit controls switching frequency of at least one switch according to the input voltage of the converter. The converter is dependent on the switching frequency that is controlled by the hold-up time expansion circuit, and controls the duty of at least one switch according to the feedback signal of the output ...
    ]]> 20120033457 <![CDATA[ACTIVE CLAMP DC-DC CONVERTER]]> http://www.patentstorm.us/applications/20120033456/description.html

  • Application Number:  20120033456
  • Publication Date:  2012-02-09
  • Inventors:  KOIKE, Yasuhiro; MOISEEV, Sergey; TSUZAKA, Masanori
    • An active clamp DC-DC converter includes a transformer having a primary coil and a secondary coil, a main switching device connected in series to the primary coil of the transformer so that the main switching device and the primary coil are connected in parallel to a DC power source, a reset capacitor, a reset switching device connected in series to the reset capacitor so that the reset switching device and the reset capacitor are connected in parallel to the primary coil of the transformer, a ...
    ]]>     20120033456     <![CDATA[SWITCHING POWER SUPPLY APPARATUS]]> http://www.patentstorm.us/applications/20120033455/description.html
  • Application Number:  20120033455
  • Publication Date:  2012-02-09
  • Inventors:  HOSOTANI, Tatsuya; UNO, Yoshiyuki
    • In a switching power supply apparatus, a comparator outputs a first determination criterion signal based on a saw-tooth wave signal whose level fluctuates with a constant period and a detection voltage signal. An inverter subjects the first determination criterion signal to reverse processing, and outputs a second determination criterion signal. The comparator outputs a first switching judgment-use signal from a monitor signal and a threshold value, and the comparator outputs a second switching ...
    ]]>     20120033455     <![CDATA[SWITCHING POWER SUPPLY APPARATUS]]> http://www.patentstorm.us/applications/20120033454/description.html
  • Application Number:  20120033454
  • Publication Date:  2012-02-09
  • Inventors:  HOSOTANI, Tatsuya; HARA, Takashi
    • A resonance-type power supply is provided in which no short circuit occurs and driving is performed with a constant switching period by performing switching control using a change of magnetic flux of a magnetic component as a trigger. When the change of magnetic flux of the transformer is detected, the first switching control signal is caused to transition to the Hi level. The detection voltage signal is A/D-converted, a first on-time is determined from the level thereof, and a second on-time ...
    ]]>     20120033454     <![CDATA[Controller for a Resonant Switched-Mode Power Converter]]> http://www.patentstorm.us/applications/20120033453/description.html
  • Application Number:  20120033453
  • Publication Date:  2012-02-09
  • Inventor:  Gong, Xiaowu
    • In accordance with an embodiment, a switch controller for a switched-mode power supply includes an oscillator, an advance timing generator, and a dead zone generator. The advance timing generator generates an advance timing output pulse having a first pulse width that is asserted when the oscillator reaches a first phase. The dead zone generator produces a dead zone output having a second pulse width when the advance timing output pulse is de-asserted. This dead zone output pulse is coupled to ...
    ]]>     20120033453     <![CDATA[DC/DC CONVERTER]]> http://www.patentstorm.us/applications/20120033452/description.html
  • Application Number:  20120033452
  • Publication Date:  2012-02-09
  • Inventors:  Torrico-Bascopé, Grover Victor; Ruiz Gomez, Fernando
    • The present invention relates to a DC/DC converter (1) with primary side (11) consisting of a resonant converter, which DC/DC converter (1) comprises a first and a second transformer (T1, T2), connected in series on the primary side (11) and on the secondary side (12) of the DC/DC converter. The secondary side (12) comprises an autotransformer (Tcd) consisting of a first and a second winding (Tcda, Tcdb) connected to a common center tap ...
    ]]>     20120033452     <![CDATA[CONVERTER]]> http://www.patentstorm.us/applications/20120033451/description.html
  • Application Number:  20120033451
  • Publication Date:  2012-02-09
  • Inventor:  USUI, Hiroshi
    • A converter includes a rectifying circuit of an AC voltage of an AC power source into a rectified voltage, an input smoothing capacitor Ci, a first series circuit connected to the input smoothing capacitor and including a first and a second switching elements, a second series circuit connected to a connection point of the first and second switching elements and a first end of the input smoothing capacitor and including a primary winding of a transformer and a first capacitor Cri, a controller ...
    ]]>     20120033451     <![CDATA[MULTIPLE POWER SUPPLIES BALANCE SYSTEM]]> http://www.patentstorm.us/applications/20120033450/description.html
  • Application Number:  20120033450
  • Publication Date:  2012-02-09
  • Inventors:  Chang, Yu-Yuan; SHIH, Tsun-Te; Chang, Tien-Wei
    • A multiple power supplies balance system includes a plurality of power supply circuits on a circuit board each having a power output route. Each power supply circuit includes a power supply feedback unit which has a reference level terminal to determine output potential of the power supply circuit. The circuit board also has an output route electrically connected to the power output route to converge current sending to a load. Thus the circuit board contains multiple sets of power supply ...
    ]]>     20120033450     <![CDATA[Control for an Electrically Adjustable Piece of Furniture]]> http://www.patentstorm.us/applications/20120033449/description.html
  • Application Number:  20120033449
  • Publication Date:  2012-02-09
  • Inventors:  Koch, Walter; Schenk, Mario
    • A control module includes a control unit that is configured to control an electrically adjustable item of furniture, and a switched mode power supply that is configured to supply the control unit. The control unit and power supply are integrated into a common housing. The switched mode power supply is configured to be switched to an idle operating state depending on a ready signal. The switched mode power supply includes, in a second stage, a switched mode regulator component, the supply ...
    ]]>     20120033449     <![CDATA[Power Supply for a Load Control Device]]> http://www.patentstorm.us/applications/20120032649/description.html
  • Application Number:  20120032649
  • Publication Date:  2012-02-09
  • Inventor:  Carmen, Daniel F.
    • A power supply for a load control device generates a DC voltage and provides an asymmetrical output current, while drawing a substantially symmetrical input current. The power supply comprises a controllably conductive switching circuit for controllably charging an energy storage capacitor across which the DC voltage is produced. The energy storage capacitor begins charging at the beginning of a half-cycle and stops charging after a charging time in response to the magnitude of the DC voltage ...
    ]]>     20120032649     <![CDATA[HIGH-VOLTAGE GENERATION APPARATUS]]> http://www.patentstorm.us/applications/20120027448/description.html
  • Application Number:  20120027448
  • Publication Date:  2012-02-02
  • Inventor:  Mukaibara, Takuya
    • A high-voltage generation apparatus raises, when switching from a state where a voltage having a predetermined polarity is output to a state where a voltage having a polarity opposite to the predetermined polarity is output, the voltage having the predetermined polarity in change amounts corresponding to the voltage having the predetermined polarity and a target voltage having the opposite polarity in a transient-state period elapsed until the voltage reaches the target ...
    ]]>     20120027448     <![CDATA[HIGH-VOLTAGE GENERATION APPARATUS AND IMAGE FORMING APPARATUS]]> http://www.patentstorm.us/applications/20120027447/description.html
  • Application Number:  20120027447
  • Publication Date:  2012-02-02
  • Inventor:  Mukaibara, Takuya
    • A high-voltage generation apparatus raises, in a transient-state period elapsed since output of a voltage is started until the voltage reaches a target value, the output voltage by a change amount corresponding to the target value without performing feedback ...
    ]]>     20120027447     <![CDATA[VEHICLE-USE POWER SUPPLY CONTROL APPARATUS AND CONTROL APPARATUS FOR CONTROLLING ELECTRIC ROTATING MACHINE MOUNTED ON VEHICLE AS MAIN ENGINE]]> http://www.patentstorm.us/applications/20120026771/description.html
  • Application Number:  20120026771
  • Publication Date:  2012-02-02
  • Inventors:  Imura, Akihiro; Kashiwagi, Hideki
    • The vehicle-use power supply control apparatus is for controlling transmission of electric power between a vehicle-mounted power supply apparatus including switching elements turned on and off in accordance with manipulation signals and an external power supply located outside the vehicle. The vehicle-use power supply control apparatus includes a control section to output an electric power transmission command signal depending on an electric power transmission request signal received from an ...
    ]]>     20120026771     <![CDATA[POWER CONVERTER WITH LINEAR DISTRIBUTION OF HEAT SOURCES]]> http://www.patentstorm.us/applications/20120026770/description.html
  • Application Number:  20120026770
  • Publication Date:  2012-02-02
  • Inventor:  West, Richard Travis
    • A power converter design is disclosed with a novel approach to thermal management which enhances the performance and significantly reduces the cost of the converter compared to prior art power converters. The invention minimizes the heating of one power component by another within the power converter and therefore enables the power converter to work at higher power levels. Essentially, the power converter uses a heatsink having a high length to width ratio, a linear array of power components ...
    ]]>     20120026770     <![CDATA[PHOTOVOLTAIC INVERTER SYSTEM AND METHOD OF STARTING SAME AT HIGH OPEN-CIRCUIT VOLTAGE]]> http://www.patentstorm.us/applications/20120026769/description.html
  • Application Number:  20120026769
  • Publication Date:  2012-02-02
  • Inventors:  Roesner, Robert; Schroeder, Stefan; Shen, Jie; El-Barbari, Said Farouk Said
    • A power inverter system includes a DC to AC inverter configured to convert DC voltage from a DC power source to AC voltage. A DC link couples the DC power source and the inverter. An inverter pre-charger operates to pre-charge the inverter to achieve a desired DC link voltage prior to connecting the power inverter system to an AC power grid. A phased lock loop synchronizes the pre-charged inverter to the AC power grid prior to connecting the power inverter system to the AC power grid. The ...
    ]]>     20120026769     <![CDATA[FACILITY POWER SUPPLY WITH POWER-FACTOR CORRECTION]]> http://www.patentstorm.us/applications/20120026768/description.html
  • Application Number:  20120026768
  • Publication Date:  2012-02-02
  • Inventor:  Lopez-Santillana, Juan-Luis
    • An embodiment of a power supply includes an input node, a converter stage, and an outlet. The input node is operable to receive an input AC signal having peak portions and non-peak portions. The converter stage is operable to generate a DC power signal from the input AC signal and to cause a first current to be drawn from the input node during at least the non-peak portions of the input AC signal. And the outlet is operable to carry the DC power signal. For example, such a power supply may be ...
    ]]>     20120026768