| 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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| 06/28/2001 | DE19958041A1 Verfahren zur Steuerung bidirektionaler Schalter in Matrixumrichtern Method for controlling bidirectional switch in matrix converters |
| 06/27/2001 | EP1111766A1 Controller for pwm/pam motor, air conditioner, and method of motor control |
| 06/26/2001 | US6252786 Electric power control method and circuit with controlled fadeout of power consumption |
| 06/26/2001 | CA2202238C Alternating current power control device |
| 06/21/2001 | WO2001045275A2 A power control device and the method therefor |
| 06/21/2001 | WO2001045243A1 Portable generator |
| 06/21/2001 | WO2001045242A1 Method for controlling an ac-ac type electric power converter |
| 06/20/2001 | EP0956639B1 Control system for supply / recovery of energy from a three-phase network into a converter with a variable voltage link |
| 06/20/2001 | CN1067499C Electric power conversion apparatus and its controlling method and uninterruption power source device using the same |
| 06/19/2001 | US6249443 Nine-phase transformer |
| 06/13/2001 | CN2434821Y High positive sinusoidal three-phase a.c. chopper voltage stailizer |
| 06/12/2001 | US6246034 Multi-period cycle-skipping for low flicker, fine-resolution power control |
| 06/07/2001 | WO2001041290A2 Method for controlling bi-directional switches in matrix converters |
| 06/05/2001 | US6242883 Variable speed three-phase motor drive with two inverter circuits |
| 05/29/2001 | US6239407 Method and apparatus for receiving a universal input voltage in a welding power source |
| 05/24/2001 | US20010001535 Multi-mode power converters incorporating balancer circuits and methods of operation thereof |
| 05/23/2001 | CN2431674Y High-frequency oscillator medium-frequency power supply unit for building |
| 05/23/2001 | CN1296330A Power source |
| 05/22/2001 | US6236192 AC voltage regulator |
| 05/22/2001 | US6233996 Driving mechanism for industrial installations, in particular for primary industry installations |
| 05/17/2001 | WO1994000806A8 Voltage controller for appliances and inductive loads |
| 05/17/2001 | US20010001227 Motor controller |
| 05/17/2001 | DE19953238A1 Electrical power supply method involves parallel mode with isolated network coupled to public network via protective device that is opened if public network fails to select isolated mode |
| 05/16/2001 | EP1099291A1 Communications processor, remote host and multiple unit control devices and methods for micropower generation systems |
| 05/16/2001 | CN1066005C Circuit arrangement |
| 05/16/2001 | CN1065992C 负载控制装置 Load control means |
| 05/10/2001 | WO2001033917A1 Electronic ballast circuit |
| 05/10/2001 | WO2001033309A1 Static voltage regulator |
| 05/09/2001 | CN1065688C Unipolar series resonant converter and method for converting power between two circuits by using same |
| 05/09/2001 | CN1065687C 电力变换器 Power converter |
| 05/09/2001 | CN1065686C Power converter and power converting method |
| 05/08/2001 | US6229288 Method and apparatus for electronic power control |
| 05/02/2001 | CN2428913Y Inverse-excitation type switch power-supply |
| 05/02/2001 | CN1065375C Harmonic current attenuation device for electric motor |
| 05/02/2001 | CN1065374C Harmonic current attenuation apparatus for electric motor |
| 04/26/2001 | WO2000065878A3 Method and device for supplying an electric arc melting furnace with current |
| 04/24/2001 | US6222325 Fluorescent lamp control circuit |
| 04/18/2001 | CN2427029Y Single three-phase conversion transformer |
| 04/17/2001 | US6219268 Power unit |
| 04/17/2001 | US6219259 Method and circuit arrangement for adapting the intermediate circuit voltage to the supply voltage |
| 04/17/2001 | US6218853 Circuit arrangement for simulating alternating current load |
| 04/12/2001 | WO2000077917A3 Indirect voltage converter |
| 04/11/2001 | EP1091478A2 Inverter device and motor driving device provided with rush preventing circuit |
| 04/11/2001 | EP0919019A4 Energy saving power control system |
| 04/11/2001 | CN1064489C Motor control apparatus, motor drive apparatus and air-conditioner |
| 04/04/2001 | CN1290060A Antitheft energy-saving electric power transmission/transform method for oil field |
| 04/04/2001 | CN1064190C Frequency coverter |
| 03/29/2001 | WO2001022554A1 Voltage balancing in intermediate circuit capacitors |
| 03/28/2001 | CN1289178A Change-over switch for control for parallel and serial connection of capacitors |
| 03/28/2001 | CN1289170A Switching voltage-changing circuit |
| 03/27/2001 | US6208230 Transformer for cycloconverter |
| 03/22/2001 | WO2001019316A2 A vibratory therapy apparatus |
| 03/21/2001 | EP1084531A1 Bi-directional ac or dc voltage regulator |
| 03/20/2001 | US6204627 Motor control apparatus |
| 03/15/2001 | DE10044574A1 Variable control circuit for AC load e.g. lighting or heating device or variable speed motor, uses phase chopping of rectified sinusoidal half waves of supply network voltage |
| 03/08/2001 | DE19941170A1 Self-symmetrising supply system has semiconducting switches in sub-converters that are loaded voltage symmetrically without active regulation or additional circuitry |
| 03/07/2001 | CN2422774Y Double zigzag connecting wire phase-shifting voltage regulator |
| 03/07/2001 | CN1062990C Power source change-over device |
| 03/07/2001 | CN1062989C Distribution base panel and electric power conversion arrangement using same |
| 03/06/2001 | US6198240 Motor controller |
| 03/06/2001 | US6198238 High phase order cycloconverting generator and drive means |
| 03/06/2001 | CA2260941C Energy saving power control system |
| 02/28/2001 | CN1062691C Process for a power supply for an inductive load and device embodying this process |
| 02/28/2001 | CN1062690C Structure of a static frequency converter |
| 02/27/2001 | US6194881 Switching power supply for lowered distribution system disturbance |
| 02/22/2001 | WO2001013491A1 Uninterruptible power supplies with dual-sourcing capability and methods of operation thereof |
| 02/22/2001 | WO2000035072A8 Motor drive circuit |
| 02/22/2001 | WO2000013287A8 Communications processor, remote host and multiple unit control devices and methods for micropower generation systems |
| 02/21/2001 | CN2420785Y Automatic control switch for electric heating blanket temperature with light-change indication |
| 02/21/2001 | CN1284785A Small high-speed asynchronous power generator |
| 02/21/2001 | CN1284777A Multi-mode power converter with equalizer circuit and its operational method |
| 02/20/2001 | US6191968 Wye connected 3-phase to 9-phase auto-transformer with reduced winding currents |
| 02/20/2001 | US6191568 Load power reduction control and supply system |
| 02/20/2001 | US6191563 Energy saving power control system |
| 02/15/2001 | DE19936228A1 Steuerverfahren zum Erzeugen eines Spannungszeigers und Steueranordnung für einen Umrichter A control method for generating a voltage vector and control arrangement for an inverter |
| 02/14/2001 | EP1076403A2 Multi-mode power converters incorporating balancer circuits and methods of operation thereof |
| 02/14/2001 | CN2419736Y Current varying transformer |
| 02/14/2001 | CN2419703Y Load adjustable monitoring electric socket |
| 02/13/2001 | US6188208 Cycle-skipping power control for AC line-powered loads |
| 02/08/2001 | WO2001010006A1 Inverter apparatus for driving a compressor motor and a method for manufacturing the apparatus |
| 02/08/2001 | DE10025028A1 Electromagnetic solid state voltage converter e.g. for LED lighting unit, has electromechanical converter using direct, reciprocal piezo effects and magnetoelastic and magnetostrictive magnetomechanical converter |
| 02/07/2001 | EP1075078A2 Control method for generation of voltage vector and control system for an inverter |
| 02/07/2001 | CN1061799C Voltage type inverter and control method thereof |
| 02/06/2001 | US6185115 Three-phase pulse width modulation method and system for alternating current motor |
| 02/01/2001 | WO2001008289A1 Method for supplying quasi-constant current, quasi-constant voltage to ac electric applications and apparatus of the same |
| 02/01/2001 | DE19934331A1 Circuit arrangement for transformation of alternating voltage of one frequency into selectable alternating voltage with selectable frequency has mains filter |
| 01/31/2001 | CN1061486C Wave-shape continuously changing method in power changing technology |
| 01/30/2001 | US6181582 Method and circuit arrangement for generating a representation of the supply voltage in a frequency converter |
| 01/30/2001 | US6181539 Power conversion apparatus and air conditioner using the same |
| 01/18/2001 | WO2001004720A1 Transformer with secondary voltage electronic adjustment |
| 01/18/2001 | WO2001003965A1 Method for controlling a power drive system |
| 01/18/2001 | DE19931199A1 Verfahren zur Steuerung eines Leistungs-Antriebssystems A method for controlling a power drive system |
| 01/16/2001 | US6175163 Integrated high frequency marine power distribution arrangement with transformerless high voltage variable speed drive |
| 01/10/2001 | CN1060599C High-voltage large-power frequency convertor without power network pollution |
| 01/09/2001 | US6172484 Method and apparatus for controlling a high-current load with a self-powered contactor |
| 01/04/2001 | DE19927525A1 Schaltung zur Stromversorgung eines Halbleiter-Schaltgerätes Power supply circuit for a semiconductor switching device |
| 01/04/2001 | DE19926979A1 Spannungszwischenkreis-Umrichter Voltage-source inverter |
| 01/03/2001 | CN2413432Y Power-saving device for industrial sewing machine |
| 01/03/2001 | CN1060299C Method for clearing 'no-load power loss' in AC voltage-stabilizer |
| 01/02/2001 | US6169674 Transformer, system and method to control harmonic distortion |