| 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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| 12/24/2008 | WO2008155446A1 Power control of a transport system |
| 12/24/2008 | WO2008155445A1 Power control of transport system |
| 12/24/2008 | WO2008092152A8 Common mode and differential mode filter for variable speed drive |
| 12/24/2008 | EP2005567A1 Single phase power supply for inductively coupled power transfer systems |
| 12/24/2008 | DE102007027458A1 Umrichterverbund Inverter net- |
| 12/24/2008 | CN101330259A Limitation of voltage pulse |
| 12/24/2008 | CN101330258A Automatic controller for outputting three-phase current steadily |
| 12/24/2008 | CN100446353C Intelligent remote control lamp holder device |
| 12/18/2008 | WO2008151859A1 Inverter compound with an intermediate circuit transmitting energy and communication data |
| 12/18/2008 | WO2008124808A3 Multi-phase interleaved oscillator |
| 12/18/2008 | US20080310206 Method for controlling frequency converter unit, and frequency converter assembly |
| 12/18/2008 | US20080310202 Method for Automatic Adjustment of the Mains-System Frequency Parameter of a Frequency Converter Which Is Connected to a Mains System |
| 12/18/2008 | DE202008013115U1 Laden eines Spannungszwischenkreises eines Frequenzumrichters Loading a voltage intermediate circuit of a frequency converter |
| 12/18/2008 | DE102007027221A1 Frequenzumrichter sowie Verfahren zum Betreiben eines Elektromotors mit einem solchen Frequenzumrichter Frequency and method of operating an electric motor having such a frequency converter |
| 12/17/2008 | EP2003770A2 Frequency inverter and method of operating an electric motor with such a frequency inverter |
| 12/17/2008 | CN201167296Y Directly-drive type ac excitation wind power generator system |
| 12/17/2008 | CN201167289Y Control device for matrix transducer |
| 12/17/2008 | CN201167284Y Unit frequency converter |
| 12/17/2008 | CN101326704A Power conversion device and power conversion system |
| 12/17/2008 | CN101325393A Transmission system for engineering machinery |
| 12/17/2008 | CN101325374A Pwm controller for compensating a maximum output power of a power converter |
| 12/17/2008 | CN101323048A Control method of electron-beam welder acceleration high-voltage power supply as well as power-supply apparatus |
| 12/16/2008 | US7466574 Method for improving the operation of a matrix converter |
| 12/11/2008 | WO2008151145A1 Four pole neutral-point clamped three phase converter with zero common mode voltage output |
| 12/11/2008 | US20080303447 Inverter apparatus |
| 12/11/2008 | DE102008026911A1 Circuit arrangement for frequency converter of wind turbine, has controller and power unit, which are connected by standardized field bus system based on data network technology, and are arranged spatially separated from each other |
| 12/10/2008 | EP2001120A2 Controller of doubly-fed induction generator |
| 12/10/2008 | CN201163291Y Multifunctional transformation ratio test device |
| 12/10/2008 | CN101320943A High voltage power supply |
| 12/10/2008 | CN101320942A Method for controlling frequency converter unit, and frequency converter assembly |
| 12/10/2008 | CN100442648C Hybrid converter of high voltage DC transmission system |
| 12/10/2008 | CN100442647C Transformer-free tandem active alternating voltage quality adjuster and its control method |
| 12/10/2008 | CN100442626C Series active AC voltage quality regulator and controlling method |
| 12/09/2008 | US7463500 Monopolar DC to bipolar DC to AC converter |
| 12/04/2008 | WO2008092154B1 System and method to extend synchronous operation of an active converter in a variable speed drive |
| 12/04/2008 | US20080298096 Dual voltage wye-connected H-bridge converter topology for powering a high-speed electric motor |
| 12/04/2008 | DE19904851B4 Unterbrechungsfreies Stromversorgungsgerät Uninterruptible power supply |
| 12/03/2008 | EP1998241A1 Method and apparatus for electrical power conversion |
| 12/03/2008 | CN201160270Y Novel high voltage variable-frequency control system with energy feedback function |
| 12/03/2008 | CN201160261Y Energy output control circuit |
| 12/03/2008 | CN201160258Y 3-power level integrated gate commutate thyristor frequency converter bridge arm straight-through protector |
| 12/03/2008 | CN201158148Y Electric heat sealing power source |
| 12/03/2008 | CN101317324A Power supply device and light-emitting device and electronic equipment using such power supply device |
| 12/03/2008 | CN101316075A Heating power supply device of man-made diamond pressing machine |
| 12/03/2008 | CN101316074A Back-to-back three-power level midpoint clamping current transformer of wind power generation system |
| 12/03/2008 | CN101316073A Driving device and method |
| 12/03/2008 | CN101316072A Energy-saving circuit for improving power factor of electric network and use thereof |
| 12/03/2008 | CN101316071A Adjustable multipurpose power source |
| 12/03/2008 | CN101315751A LCD power supply |
| 12/03/2008 | CN100440708C Power supply system of display apparatus and control method thereof |
| 12/03/2008 | CN100440707C Lamp transformer for use with an electronic dimmer and method for use thereof for reducing acoustic noise |
| 12/02/2008 | US7460377 Matrix converter |
| 12/02/2008 | US7459806 High voltage magnetic compression modulator |
| 11/27/2008 | WO2008117166A3 Power converter apparatus and methods using neutral coupling circuits with interleaved operation |
| 11/27/2008 | US20080291704 Driving device and method for providing an ac driving signal to a load |
| 11/27/2008 | US20080291698 Control Method and Controller for Pwm Cyclo-Converter |
| 11/27/2008 | DE202008011309U1 Frequenzumrichter mit Bremswiderstand Inverter with braking resistor |
| 11/26/2008 | EP1995860A2 Protective circuit and method for multi-level converter |
| 11/26/2008 | CN201156666Y AC operation power supply of programmable controller |
| 11/26/2008 | CN101312329A High-frequency AC electric power controller |
| 11/26/2008 | CN101312324A Power module for ac/ac power conversion |
| 11/26/2008 | CN100438321C Motor drive unit |
| 11/26/2008 | CN100438320C Power converter |
| 11/26/2008 | CN100438301C Startup power supply of chain inverter for static synchronous compensator |
| 11/26/2008 | CN100438289C Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion by voltage conversion device |
| 11/26/2008 | CN100437410C Power redgulator employing sinusoidal refferene |
| 11/25/2008 | US7457141 AC adaptor |
| 11/25/2008 | CA2358418C Phase converter |
| 11/20/2008 | WO2008140457A1 Pulse width modulation control of a matrix converter |
| 11/20/2008 | WO2008138911A1 Redundant current valve control in a high voltage power transmission system |
| 11/20/2008 | WO2008138864A1 Method and device for operating a control unit for controlling an electrical machine |
| 11/20/2008 | WO2008002566A9 High voltage power supply |
| 11/20/2008 | US20080286088 Fan system and motor control circuit |
| 11/20/2008 | US20080285314 Advanced matrix converter and method for operation |
| 11/20/2008 | US20080284367 Power Converter |
| 11/20/2008 | US20080283514 Heated frequency converter assembly |
| 11/19/2008 | EP1993195A2 Heated frequency converter assembly |
| 11/19/2008 | EP1766770B1 Quenching device for a converter bridge with line regeneration |
| 11/19/2008 | EP1423907A4 Power supply for induction heating or melting |
| 11/19/2008 | EP1145413B1 Arrangement for eliminating radio interferences in an electronic power regulator |
| 11/19/2008 | CN201153179Y Multifunctional socket |
| 11/19/2008 | CN101310434A Power converters |
| 11/19/2008 | CN101309052A Double step-up/double step-down combined AC/AC converting circuit |
| 11/19/2008 | CN101309051A High power AC frequency conversion apparatus special for downhole |
| 11/19/2008 | CN101309047A Electric power conversion device |
| 11/19/2008 | CN101309045A Equalizer circuit of electric power indication, auxiliary power start and electrolytic capacitor |
| 11/19/2008 | CN101306653A Traction power supply equipment based on PWM rectifier and control method |
| 11/19/2008 | CN100435478C Synchronous detection circuit for frequency changing air conditioner digital voltage lifting PFC circuit |
| 11/19/2008 | CN100435462C Voltage conversion device, voltage conversion method, and computer-readable recording medium containing program for causing computer to execute voltage conversion control |
| 11/19/2008 | CA2631174A1 Control methods for the synchronisation and phase shift of the pulse width modulation (pwm) strategy of power converters |
| 11/18/2008 | CA2466787C Stud welder |
| 11/13/2008 | US20080278976 Dynamic voltage sag correction |
| 11/13/2008 | DE102008000949A1 Phasensteuerungsverfahren und Phasensteuerungsvorrichtung Phase control method and phase control apparatus |
| 11/12/2008 | EP1990909A2 Control methodologies for a motor control module |
| 11/12/2008 | EP1990906A1 Power converters |
| 11/12/2008 | EP1990893A1 Uninterruptible power supply and method of implementing said supply |
| 11/12/2008 | CN201150036Y Relay driven power supply circuit |
| 11/12/2008 | CN201150035Y Resistance-capacitance step-down power supply circuit with zero crossing detection function |
| 11/12/2008 | CN201150001Y Voltage, current recuperating apparatus for medium voltage power distribution network |
| 11/12/2008 | CN101304234A Power converters |