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) |
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10/17/2012 | CN102739070A Energy feedback type three-phase high-voltage frequency converter |
10/17/2012 | CN102739069A Power semiconductor module and power electronic device applying same |
10/17/2012 | CN102739068A Ground scheme identification method |
10/17/2012 | CN102739067A Synchronous regulation circuit for turn-on and turn-off phase angle of the AC voltage |
10/17/2012 | CN102739066A Inductive current-to-voltage converter and method for measuring high frequency current |
10/17/2012 | CN102735984A Assembly for earth connection surveillance in an alternating current circuit and power supply assembly with such an earth connection surveillance |
10/17/2012 | CN102110990B Wind power generation system based on reverse loose matrix converter and method thereof |
10/17/2012 | CN101836353B Power conversion device |
10/17/2012 | CN101647186B Power conversion system |
10/16/2012 | US8289743 Systems and methods for direct-current voltage control |
10/16/2012 | US8289736 Conversion of AC lines to HVDC lines |
10/16/2012 | US8289735 Method and system for delivering a controlled voltage |
10/11/2012 | WO2012137210A2 System, apparatus and method for uninterruptible power supply |
10/11/2012 | WO2012136043A1 Method for controlling auxiliary source circuit of two-wire dimmer |
10/11/2012 | WO2012136042A1 Auxiliary power supply circuit of two wire dimmer |
10/11/2012 | WO2011154196A3 Shaft-driven generator system |
10/11/2012 | US20120257425 Power converter |
10/11/2012 | US20120257424 Limiting Peak Electrical Power Drawn by Mining Excavators |
10/10/2012 | EP2509207A2 Power conversion system |
10/10/2012 | EP2509206A2 Synchronous regulation circuit for turn-on and turn-off phase angle of the AC voltage |
10/10/2012 | EP2507904A1 Method and arrangement for controlling a voltage intermediate circuit converter |
10/10/2012 | CN202488368U Resistance-capacitance voltage-dropping power supply device capable of reducing standby power loss |
10/10/2012 | CN202488359U Matrix AC-AC (Alternate Current to Alternate Current) high voltage frequency converter topological structure |
10/10/2012 | CN202488358U Novel magnetic voltage controlled power supply |
10/10/2012 | CN202488357U Voltage stabilization power supply device for spray valve plate of color sorter |
10/10/2012 | CN202488356U Grading compensating power supply device used for ultra/extra-high voltage CVT on-site calibration |
10/10/2012 | CN202488355U Magnetic voltage-regulating power supply |
10/10/2012 | CN202488354U Mine frequency converter control device |
10/10/2012 | CN102723877A Space vector modulation method of four-leg converter based on classification algorithm and apparatus thereof |
10/10/2012 | CN101951165B Single-phase alternating current converter of direct current link |
10/10/2012 | CN101877547B Double-power supply convertor |
10/10/2012 | CN101796710B Direct type AC power converting device |
10/10/2012 | CN101710789B Megawatt-level permanent magnet direct-drive wind-force generating converter and control method |
10/10/2012 | CN101527501B Power conversion units connected in parallel |
10/04/2012 | WO2012129844A1 Intelligent synthesis system for developing and testing high-voltage frequency converter and establishment method thereof |
10/04/2012 | WO2012093009A3 Assembly for converting an input ac voltage to an output ac voltage |
10/04/2012 | US20120250375 Power converter |
10/04/2012 | US20120250372 Grid tied inverter, system and method |
10/04/2012 | US20120250370 High frequency power supply device |
10/04/2012 | DE202010017531U1 Vorrichtung zum Anlegen einer Spannung an eine Vielzahl von Siliziumstäben in einem CVD-Reaktor Apparatus for applying a voltage to a plurality of silicon rods in a CVD reactor |
10/03/2012 | CN202475843U Sine-wave constant-current variable-frequency dimmer |
10/03/2012 | CN202475277U Full-bridge inversion type electro-plating power supply |
10/03/2012 | CN202475276U AC-DC inversion welding machine realization low frequency controllable AC output circuit |
10/03/2012 | CN202475275U 175-hertz full electronic hump length-measuring power source |
10/03/2012 | CN202475274U Power supply for three-phase bridge inverter high-power high-frequency ozone generators |
10/03/2012 | CN202475273U Drawing machine variable-frequency speed regulator |
10/03/2012 | CN202475272U Electric energy feedback type power supply aging device |
10/03/2012 | CN202475271U Intelligent air cooling universal switch power supply |
10/03/2012 | CN202475270U High-power three-phase voltage stabilizer |
10/03/2012 | CN202475269U Variable frequency transformer |
10/03/2012 | CN202475007U Pipe laying equipment electric control system |
10/03/2012 | CN202473577U Primary pole shared and secondary pole parallel type power expansion and electricity saving device |
10/03/2012 | CN102714467A Power conversion device |
10/03/2012 | CN102714466A A power converter with hold up |
10/03/2012 | CN102714465A Power transfer devices, methods, and systems with crowbar switch shunting energy-transfer reactance |
10/03/2012 | CN102712260A Mining vehicle and method for its energy supply |
10/03/2012 | CN102710146A Driving and protection device of full-isolation three-phase inverter |
10/03/2012 | CN102710145A Large-power four-quadrant converter and electric power transformation device |
10/03/2012 | CN102710144A Method and system for adjusting operating frequency of transformer |
10/03/2012 | CN102710143A Midpoint voltage deviation control method |
10/03/2012 | CN102710142A Intelligent boosting cabinet |
10/03/2012 | CN102710141A Four-quadrant cascade high-voltage frequency conversion device |
10/03/2012 | CN102709992A High-frequency chopping boost charging circuit |
10/03/2012 | CN102709950A Large-capacity inversion grid-connected device |
10/03/2012 | CN102709038A Structure of main transformer composed of multiple transformers in inverter power sources |
10/03/2012 | CN101546960B Power source apparatus |
10/03/2012 | CN101087108B A power unit bypass machine of high-voltage frequency conversion and speed-adjusting device |
10/02/2012 | US8279647 Universal three phase controllers for power converters |
10/02/2012 | US8279641 Electric power conversion apparatus having frequency fixing unit to control beat phenomenon |
10/02/2012 | US8279640 Modular multi-pulse transformer rectifier for use in symmetric multi-level power converter |
10/02/2012 | US8279639 Direct AC power converting apparatus |
09/27/2012 | WO2012126515A1 Electrical installation having a matrix converter and corresponding method for operating same |
09/26/2012 | EP2502339A2 A power converter with hold up |
09/26/2012 | EP2502338A2 A method and apparatus for controlling the powering of a transformer |
09/26/2012 | EP2502122A1 Method of adjusting a voltage across terminals of a load |
09/26/2012 | CN202455278U Two-phase variable-frequency power supply |
09/26/2012 | CN202455277U Shore power supply for medium-low voltage ship |
09/26/2012 | CN202455276U Control transformer for high-speed train |
09/26/2012 | CN202455275U Intrinsically safe power supply |
09/26/2012 | CN202455094U Full-power converter, control system and direct-drive type wind power generating set |
09/26/2012 | CN202455089U Megawatt-grade direct-driven type mouse cage asynchronous generator AC-DC-AC wind power generation system |
09/26/2012 | CN202455066U Dock marine shore power system |
09/26/2012 | CN102694474A Power supply apparatus generating electrostatic field |
09/26/2012 | CN101662230B Non-contact multiple input voltage source type resonant converter |
09/26/2012 | CN101610625B Dynamic energy-saving lighting power supply device |
09/26/2012 | CN101043145B Ups systems having multiple operation modes and methods of operating same |
09/25/2012 | US8274271 Motherboard with overclocking and overvolting functions |
09/20/2012 | WO2012124510A1 Charging method for snubber capacitor |
09/20/2012 | WO2012123984A1 Electric propulsion system |
09/20/2012 | WO2012123663A1 Electrical energy supply of an aircraft |
09/20/2012 | WO2012123365A2 Power generation unit driver, power generation unit and energy output equipment in power grid |
09/20/2012 | WO2012122874A1 H-bridge cascaded multi-level voltage sag generator based on igbt |
09/20/2012 | WO2012122873A1 Shore-based variable frequency power supply system in port |
09/20/2012 | WO2012122870A1 New test power supply for transformer |
09/20/2012 | US20120234825 Electric heating appliance with ac-line filter with low leakage current |
09/20/2012 | CA2829878A1 Electrical energy supply of an aircraft |
09/19/2012 | EP2499733A2 Multi-level, multi-voltage matrix converter circuit and method for implementing such a circuit |
09/19/2012 | CN202444429U Circuit structure for wind power converter |
09/19/2012 | CN202444428U High-power harmonic power supply device |
09/19/2012 | CN202444427U Single-phase-and-three-phase-in-one variable-frequency sinusoid power supply device without partial discharge |