| Patents for H02P 27 - Arrangements or methods for the control of ac-motors characterised by the kind of supply voltage (13,284) |
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| 05/20/2009 | CN101434372A Hydraulic system control method and apparatus for fuel charger |
| 05/20/2009 | CN101434205A Double-ended inverter system with isolated neutral topology |
| 05/20/2009 | CN100490302C Motor controller |
| 05/14/2009 | WO2009060588A1 Inverter device for washing machine |
| 05/14/2009 | WO2009060587A1 Washing machine |
| 05/14/2009 | US20090121671 Valve timing control apparatus |
| 05/14/2009 | US20090121669 Motor Drive Device and Motor Drive Device Control Method |
| 05/14/2009 | US20090121560 Borealis Technical Limited |
| 05/13/2009 | EP2058940A1 Ac motor vector control apparatus |
| 05/13/2009 | EP2058936A1 Current control type power conversion device |
| 05/13/2009 | CN201238283Y Remote controller of frequency convertor |
| 05/13/2009 | CN201238282Y Motor control detection circuit for forced-ventilation type gas water heater |
| 05/13/2009 | CN201237733Y Oil well operation variable-frequency control apparatus based on PLC control |
| 05/13/2009 | CN201236078Y Frequency conversion energy-saving control device for negative pressure system of bobbin winder |
| 05/13/2009 | CN101432962A Power variable-type motor driving circuit and driving method |
| 05/13/2009 | CN101432961A Control device of AC rotary motor |
| 05/13/2009 | CN101432960A 空调机 Air conditioning |
| 05/13/2009 | CN101432175A Internal combustion engine stop control device and stop control method |
| 05/13/2009 | CN101431311A Motor control system |
| 05/13/2009 | CN101431298A Switching arrangement for operating electrical load, and having load current measurement function |
| 05/13/2009 | CN101430168A Method and cooling system for improving cooling capacity of power station direct air cooling system |
| 05/13/2009 | CN101430167A Method and system for improving electric motor output transfer efficiency of direct air cooling system |
| 05/13/2009 | CN101428569A Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions |
| 05/13/2009 | CN100488043C Filter network and electric system |
| 05/13/2009 | CN100488026C AC motor frequency conversion controller torque ripple following circuit and its method |
| 05/13/2009 | CN100488025C Energy conserving motor controller |
| 05/12/2009 | US7531982 Motor drive apparatus capable of accurately estimating demagnetization of permanent magnet motor |
| 05/12/2009 | US7531974 Apparatus and method for controlling a motor |
| 05/07/2009 | WO2009057866A2 Method for controlling motor of air conditioner and motor controller of the same |
| 05/07/2009 | WO2009057741A1 Motor control device, drive device, and hybrid drive device |
| 05/07/2009 | WO2009057388A1 Motor controller, electric vehicle and hybrid electric vehicle |
| 05/07/2009 | WO2009057188A1 Controller of motor |
| 05/07/2009 | WO2008040131A8 Method and switching arangement for the feedback of commutation energy of three-phase current drive systems with a current intermediate circuit converter |
| 05/07/2009 | US20090115269 Electric motor control with buck boost converter |
| 05/07/2009 | DE112007001594T5 Motorantriebsvorrichtung Motor driving device |
| 05/07/2009 | DE102008013431A1 Machine safety-oriented stopping procedure, involves releasing turn-off impulse in case of endangerment to persons, and stopping machine within maximum deceleration time during operation of machine |
| 05/07/2009 | CA2698956A1 Controller of motor |
| 05/06/2009 | EP2056445A2 Electric motor control with buck boost convertor |
| 05/06/2009 | EP1317371A4 Method and apparatus for torque control of a machine |
| 05/06/2009 | CN201234239Y Infrared remote control speed regulator |
| 05/06/2009 | CN201234237Y Dynamic intelligent electricity economizer for AC electric motor |
| 05/06/2009 | CN201234233Y Driving circuit for large power rear earth square wave motor |
| 05/06/2009 | CN101427458A Motor control |
| 05/06/2009 | CN101425777A Voltage orienting frequency conversion controller for open loop non-speed sensor |
| 05/06/2009 | CN101425775A Controller and controlling method for non-bearing permanent magnet synchronous electric motor |
| 05/06/2009 | CN101425756A DC lateral voltage controllable 4 quadrant frequency transformer and method thereof |
| 05/06/2009 | CN100486091C Device for controlling power supply by phase gating and method for reduction of harmonic waves |
| 05/06/2009 | CN100485115C Washing machine with variable-frequency drive |
| 05/05/2009 | US7528583 Brushless generator |
| 05/05/2009 | US7528569 Inverter circuit free from power-source-voltage fluctuation |
| 04/30/2009 | WO2009053520A1 Arrangement in a frequency converter controlled direct connected drive |
| 04/30/2009 | WO2009001285A3 System for controlling the steady-state rotation of a synchronous electric motor |
| 04/30/2009 | US20090108798 Method and system for controlling pulse width modulation in a power inverter in electric drives |
| 04/30/2009 | US20090108797 Method for driving an asynchronous motor and pump arrangement with asynchronous motor |
| 04/30/2009 | US20090108794 Control Device and Corresponding Control Method for a Boost Converter in a Motor Drive System |
| 04/30/2009 | US20090108780 Method and system for controlling a power inverter in electric drives |
| 04/30/2009 | US20090107742 Method and system for controlling a power inverter in electric drives of vehicles with two-mode transmissions |
| 04/30/2009 | DE102008042589A1 Gangschaltungsvorrichtung und Gangschaltungsverfahren Gear shifting device and gear shift method |
| 04/30/2009 | CA2702529A1 Control of heavy machines |
| 04/29/2009 | EP2053733A1 Method for operating an asynchronous motor and pump assembly with asynchronous motor |
| 04/29/2009 | EP1181766B1 Starting procedure of open-loop vector control in synchronous machine |
| 04/29/2009 | CN201230284Y Apparatus for implementing high voltage frequency transformer based on IGCT |
| 04/29/2009 | CN101420202A Method and system for controlling a power inverter in electric drives |
| 04/29/2009 | CN101420201A Method and system for controlling pulse width modulation in a power inverter in electric drives |
| 04/29/2009 | CN101420197A Control device for driving a brushless DC motor |
| 04/29/2009 | CN101419473A Control method of blower motor and blower motor system |
| 04/23/2009 | WO2009051320A2 Motor controller of air conditioner and method of the motor controller |
| 04/23/2009 | WO2009050804A1 Wheel diameter measuring instrument for electric vehicle |
| 04/23/2009 | WO2009050400A2 Method for controlling the power supply of an electric machine with variable reluctance |
| 04/23/2009 | WO2009049603A2 Control system for solar installations |
| 04/23/2009 | DE102008040922A1 Verfahren und Vorrichtung zur Ansteuerung eines Elektromotors Method and apparatus for driving an electric motor |
| 04/23/2009 | DE102008038348A1 Halbleiter-Stromrichter Semiconductor converters |
| 04/23/2009 | DE102008029898A1 Three-phase alternating-current motor i.e. three-phase, four-pole asynchronous motor, controlling arrangement for power electronic fields, has diodes connected to transistors in reverse direction, and control device controlling transistors |
| 04/22/2009 | EP2051362A1 Inverter |
| 04/22/2009 | EP1941610B1 Actuator for automotive climatization units |
| 04/22/2009 | CN201226505Y High voltage blower/high voltage fan electricity-saving device |
| 04/22/2009 | CN201225298Y DC fan using AC power supply |
| 04/22/2009 | CN201225297Y DC fan using AC power supply |
| 04/22/2009 | CN101416379A Inverter device and air conditioner |
| 04/22/2009 | CN100481708C Phase current detection method, inverter control method, motor control method, and apparatuses therefor |
| 04/22/2009 | CN100481702C Phase current detector |
| 04/21/2009 | US7521889 Method of braking induction motor and control apparatus |
| 04/16/2009 | WO2009048066A1 Motor control device and magnetic pole position estimation method |
| 04/16/2009 | WO2009047997A1 Ac motor control device and ac motor control method |
| 04/16/2009 | US20090096403 Motor control |
| 04/16/2009 | DE102006035891B4 Antrieb, umfassend einen Elektromotor, der von einem Umrichter gespeist ist, und Verfahren zur Regelung des Motorstromes bei einem von einem Umrichter gespeisten Elektromotor Drive, comprising an electric motor which is powered by an inverter, and method for controlling the motor current in one of one inverter-fed electric motor |
| 04/15/2009 | EP2048772A1 Variable magnetic flux motor drive system |
| 04/15/2009 | CN201222718Y Intelligent double-control chopping type medium-pressure motor speed-regulating device |
| 04/15/2009 | CN201222717Y Flame-proof and essential safety type duplicate-supply variable-frequency control device for coal mine fan |
| 04/15/2009 | CN201222716Y Variable-frequency control system for transformer substation main cooling fan |
| 04/15/2009 | CN201222197Y Control device for shutdown of bundling machine |
| 04/15/2009 | CN201220607Y Variable frequency control system special for traction |
| 04/15/2009 | CN101409527A Power supply method for asynchronous motor |
| 04/15/2009 | CN101409526A Elevator system and accumulator unit |
| 04/15/2009 | CN101409501A Subharmonic intelligent electricity saver |
| 04/15/2009 | CN100479319C Starting system for a single-phase induction motor |
| 04/14/2009 | US7518335 Method and apparatus for PWM control of voltage source inverter to minimize current sampling errors in electric drives |
| 04/14/2009 | US7518333 Dynamic reef surge generation |
| 04/14/2009 | US7518331 AC rotating electric machine control method and electrical power train system |
| 04/09/2009 | WO2009001291A3 A control system without position sensors for a synchronous electric motor |