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