Patents for H02M 5 - Conversion of ac power input into ac power output, e.g. for change of voltage, for change of frequency, for change of number of phases (13,094)
04/2014
04/03/2014US20140092649 Contactless inductively coupled power transfer system
04/03/2014DE102012109283A1 Power converter of electrical machine used for feeding three-phase motor of motor vehicle, has electrical resistance that is provided in circuit portion at same time through decoupling element
04/02/2014EP2713494A1 Energy feed device for feeding electrical energy generated from kinetic energy into an alternating current distributor network
04/02/2014CN203522570U Simple inverter for solar power generator set
04/02/2014CN203522559U Small-power electronic rectifier
04/02/2014CN203522550U Power transformation transmission system suitable for wave power generator unit
04/02/2014CN203522549U Distributed power grid-connected inverter testing ac source capable of island test
04/02/2014CN203522548U Predictive non-circulating-current control apparatus of AC-AC frequency converter
04/02/2014CN203522547U AC-AC variable-frequency phase-control trigger
04/02/2014CN203522546U Broadcast television line power supply device
04/02/2014CN203522545U External power supply structure for self-power utilization of photovoltaic power generation inversion boost units
04/02/2014CN203519675U Large-power frequency-conversion signal source special for measurement of grounding network
04/02/2014CN103703665A Switch mode power supply and method for operating the switch mode power supply
04/02/2014CN103702919A Electricity supply device and elevator system
04/02/2014CN103701335A High-voltage inverter power unit system
04/02/2014CN103701334A Internal combustion engine-driven inverting generating set and inverting control method thereof
04/02/2014CN103701333A Circulating current suppression method for cascade parallel high-voltage frequency converter
04/02/2014CN103701332A Intelligent power transformer on basis of PWM (Pulse Width Modulation)
04/02/2014CN103701331A LLC (Logical Link Control) resonant wide-voltage-range output high-efficiency power supply with variable resonant frequency
04/02/2014CN103700700A Compound semiconductor device and method of manufacturing the same
04/02/2014CN102355140B Concatenated multilevel inverter circuit capable of realizing energy feedback and control method
04/01/2014US8687397 Method for operating a direct converter circuit and device to carry out the method
04/01/2014US8687385 Low power converter
03/2014
03/27/2014WO2014046012A1 Method for controlling direct power conversion device
03/27/2014WO2014044089A1 On-line uninterrupted power supply topology
03/27/2014US20140085956 Power conversion device
03/27/2014US20140085950 Power conversion device
03/27/2014DE102012217472A1 Power converter e.g. three-phase on-off power converter has measuring unit which is arranged in alternating current branches for detecting de-energized branch depending on switching state of several switchable power semiconductors
03/26/2014EP2710722A2 Method for controlling a cycloconverter, electronic control device therefor, cycloconverter, and computer program
03/26/2014EP2710721A1 Resonant power conversion circuit
03/26/2014CN203504452U Steep-fronted nanosecond pulse power supply for dual-medium low-temperature plasma reactor
03/26/2014CN203504433U Power supply circuit
03/26/2014CN203504432U Voltage-regulating current-regulating direct-current power supply with lightning-stroke-prevention and surging-prevention functions
03/26/2014CN203504421U Novel electronic transformer
03/26/2014CN203504420U High-frequency high-voltage electrostatic precipitator power supply
03/26/2014CN203504419U Movable type AC power supply device
03/26/2014CN203504418U Chain-type SVG power module power supply circuit
03/26/2014CN203504417U High-low frequency conversion circuit system
03/26/2014CN103688456A Power conversion device
03/26/2014CN103688455A Method for operating several loads in alternating current networks with leading edge or trailing edge phase cutting
03/26/2014CN103684201A Six-phase non-feedback alternating-current frequency converter with motor
03/26/2014CN103684190A Motor control apparatus including at least two resistance discharge units
03/26/2014CN103683971A Electricity-generation return transmission circuit loop of permanent magnetic energy motor
03/26/2014CN103683969A A converter which converts a single-phase power supply into a three phase power supply
03/26/2014CN103683968A Power controller adopting single live wire access
03/26/2014CN103683967A Macro-micro driving power supply of linear driver and control method thereof
03/26/2014CN103683966A Regenerative inverter device and inverter device using power cell unit
03/26/2014CN103683965A Silicon controlled intermediate frequency power supply circuit
03/26/2014CN103683964A Resonant bidirectional transducer, uninterruptible power supply device and control method
03/26/2014CN103683963A EMCCD (Electron Multiplying Charge Coupled Device) driving circuit with use of three-winding high-frequency transformer for programmable amplitude modulation
03/26/2014CN103683962A Parallel connection type high-power combined frequency converter
03/26/2014CN103683961A Hybrid high-power combined frequency converter
03/26/2014CN103683960A Series connection type high-power combined frequency converter
03/26/2014CN103683959A Power unit burn-in method for high-voltage frequency converter
03/26/2014CN103683958A Alternative-current/direct-current mutual switching circuit special for magnetic energy motor
03/26/2014CN103683957A Capacitive transformer
03/26/2014CN103683956A Low-power-consumption capacitive alternating-current voltage signal conversion circuit
03/26/2014CN103683951A Inverter with full-wave differential output function
03/26/2014CN103683945A Forward-based power conversion apparatus
03/26/2014CN103683863A Isolation type high-power driving circuit and switch power supply using circuit
03/26/2014CN103683356A Online uninterruptible power supply topology
03/26/2014CN103681834A Compound semiconductor device and method for manufacturing the same
03/25/2014US8681517 AC converter, AC converting method, and storage medium for converting an AC voltage with a relatively high frequency into an AC voltage with a relatively low frequency
03/25/2014US8681515 Energy generation system and anti islanding protecting method thereof
03/20/2014WO2013085393A3 Apparatus and method for transferring electrical power to a rotating shaft
03/20/2014WO2013071933A3 Matching energy consumption of an electric transformer with energy needed by a linear actuator system
03/20/2014US20140078791 Systems and methods for controlling an inverter
03/20/2014DE102012216368A1 Schaltungsanordnung zum Anschluss an eine elektrische Schaltung sowie elektrische Schaltung Circuit arrangement for connection to an electrical circuit and electrical circuit
03/20/2014DE102008018388B4 Verfahren zur automatischen Erkennung einer Last und zur automatischen Zuordnung eines Ansteuerverfahrens durch einen Dimmer sowie Dimmer A method for automatic detection of a load and a driving method for automatic assignment by a dimmer and dimmer
03/20/2014DE102006016983B4 Schaltnetzteil mit einer Überlast- und Kurzschlussabsicherung Switching power supply with overload and short circuit protection
03/19/2014EP2709259A2 Voltage balancing circuit
03/19/2014EP2709258A1 Circuit arrangement for connection to an electrical circuit and electrical circuit
03/19/2014CN203491932U Rotor current recovery and feedback device for slip ring wound rotor motor
03/19/2014CN203491923U Five-level voltage source converter
03/19/2014CN203491898U Bidirectional tide-controlled modularized multi-level mutually-balanced solid-state transformer
03/19/2014CN203491897U Electric transformer for computer
03/19/2014CN203491896U Frequency converter with protective device and frequency converter application system
03/19/2014CN103650317A Power conversion device
03/19/2014CN103650316A Power conversion device
03/19/2014CN103647461A Control method and apparatus of AC-DC series resonance matrix converter
03/19/2014CN103647460A Implementation method for medium-frequency heating power supply of reduction furnace
03/19/2014CN103647459A High-frequency-link parallel inverter with no connection wire
03/19/2014CN103647458A Frequency conversion system and method and device for precharging high-voltage frequency converter in frequency conversion system
03/19/2014CN103647457A Radio frequency solid state transformer
03/19/2014CN103647278A High-capacity unified power disturbance generating device
03/19/2014CN102158072B Power inverter of parallel-connected electric bridge type impedance network
03/19/2014CN102044974B Main circuit topological structure of energy feedback device
03/17/2014CA2826932A1 Power distribution systems
03/14/2014CA2826557A1 Current balance control in converter for doubly fed induction generator wind turbine system
03/13/2014US20140068891 Power factor correction circuit, power supply device and vacuum cleaner using the same
03/13/2014DE102012110969A1 Dreiphasentransformatorsystem und Netz mit einem solchem Dreiphasentransformatorsystem Three-phase transformer system and network with such a three-phase transformer system
03/12/2014EP2706653A1 Five-level power converter, controlling method and controlling device thereof
03/12/2014EP2706652A2 Regenerative inverter device and inverter device using power cell unit
03/12/2014CN203482101U Power supply for vacuum double-frequency induction heating device
03/12/2014CN203482100U Hybrid-power motor-train-unit traction converter suitable for multiple power-supply modes
03/12/2014CN203482099U Three-phase current switch
03/12/2014CN203481824U Power supply system of rolling-cut continuous excavation machine
03/12/2014CN103636111A Variable frequency drive voltage boost to improve utilization
03/12/2014CN103636110A System and method for reducing power consumption in power supply circuit
03/12/2014CN103634957A High-frequency heating apparatus and frequency control method thereof
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