| 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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| 04/09/2009 | WO2008116467A3 Method for driving a pulse width modulated controller |
| 04/09/2009 | US20090091866 Shift switching device and shift switching method |
| 04/09/2009 | DE19827872B4 Antriebsschaltung für ein Schienenfahrzeug Driving circuit for a rail vehicle |
| 04/08/2009 | EP2045907A2 Method to re-engage start of dynamoelectric machine |
| 04/08/2009 | EP2045905A1 Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods |
| 04/08/2009 | EP2045904A2 Motor driving apparatus |
| 04/08/2009 | CN201218218Y Temperature controlled fan controller and temperature controlled fan |
| 04/08/2009 | CN101405929A Motor and drive control device |
| 04/08/2009 | CN101404450A Voltage converter and computer-readable recording medium for recording program for making computer execute control for converting voltage in voltage converter |
| 04/08/2009 | CN101404449A Voltage converter and computer-readable recording medium for recording program for making computer execute control for converting voltage in voltage converter |
| 04/08/2009 | CN101403897A Semi-automatic layout machine |
| 04/08/2009 | CN100477478C Device for preheating frequency-conversion compressor and method thereof |
| 04/08/2009 | CN100477469C Electric power changing device |
| 04/08/2009 | CN100477448C Inner feedback brushless alternating current machine |
| 04/07/2009 | US7514898 Low loss propulsion system |
| 04/02/2009 | WO2009041157A1 Inverter control device and its control method |
| 04/02/2009 | WO2009040965A1 Controller of rotary electric machine |
| 04/02/2009 | WO2009040884A1 Controller for electric motor |
| 04/02/2009 | US20090088294 Thermal protection of an electric drive system |
| 04/02/2009 | DE112007000576T5 Motor und Antriebssteuerungsvorrichtung dafür Motor and drive control apparatus therefor |
| 04/02/2009 | CA2700612A1 Motor controlling device |
| 04/02/2009 | CA2697610A1 Controller of rotary electric machine |
| 04/01/2009 | EP2043249A1 Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods |
| 04/01/2009 | EP2043248A1 Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods |
| 04/01/2009 | EP2043247A1 Phase current detection method, inverter control method, motor control method, and apparatuses used in these methods |
| 04/01/2009 | CN101401295A Electric motor control apparatus |
| 04/01/2009 | CN101400536A 电驱动系统和混合驱动系统 Electric drive systems and hybrid drive systems |
| 04/01/2009 | CN101398190A Efficiency energy saving gas range |
| 04/01/2009 | CN100474757C Method for managing processor execution time utilizing variable frequency switching |
| 04/01/2009 | CN100474747C Motor control circuit and associated full bridge switching arrangement |
| 03/31/2009 | US7511448 Motor control device |
| 03/31/2009 | US7511447 Motor drive apparatus |
| 03/26/2009 | WO2009038047A1 Variable magnetic flux drive system |
| 03/26/2009 | WO2009007175A3 Electric motor commutator and method for driving an electric motor commutator |
| 03/25/2009 | EP2040373A1 Inverter device and air conditioner |
| 03/25/2009 | EP2040368A1 Motor control device and vehicle using the same |
| 03/25/2009 | EP2001124A9 Motor-driven control system and its control method |
| 03/25/2009 | EP1134421B1 Autonomous inverter driving hydraulic unit |
| 03/25/2009 | CN101395032A Driving control device for electricity driving vehicle |
| 03/25/2009 | CN101394149A Driving system for dual-phase permanent magnet asynchronous motor |
| 03/25/2009 | CN101394148A Driving system for dual-phase asynchronous motor |
| 03/25/2009 | CN101394145A Low speed synchronous motor drive operation |
| 03/25/2009 | CN101394138A Motor |
| 03/25/2009 | CN101391416A Power tool |
| 03/25/2009 | CN100472937C Electric steering control device |
| 03/25/2009 | CN100472933C Global closed loop control system with DV/DT control and EMI/switching loss reduction |
| 03/25/2009 | CN100472931C Inverter controlling apparatus for driving motor and air conditioner using the same |
| 03/25/2009 | CN100471779C 电梯装置 Elevator device |
| 03/24/2009 | US7508640 Method for fault handling in a converter circuit for wiring of three voltage levels |
| 03/24/2009 | US7508160 Soft start system for motors utilizing variable frequency drive and autotransformer |
| 03/24/2009 | US7508159 Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method |
| 03/19/2009 | US20090072776 Apparatus and Method for Controlling Hybrid Motor |
| 03/18/2009 | EP2037560A1 Electric motor driving device |
| 03/18/2009 | CN201210665Y Energy-saving electrical appliance set for field oil pumping machine |
| 03/18/2009 | CN201210250Y FFU AC multiple speed group control controller |
| 03/18/2009 | CN101390284A Electric motor control apparatus |
| 03/18/2009 | CN101390281A Electric motor driving device |
| 03/18/2009 | CN101388643A Power inverter module thermal management |
| 03/18/2009 | CN101388641A Method for operating an electric rotary machine |
| 03/18/2009 | CN101388638A Three phase inverter with improved loss distribution |
| 03/18/2009 | CN101388615A Method and system for converting DC power to AC power |
| 03/18/2009 | CN101388599A Space vector pulse modulation FPGA implementing method based on three parameters |
| 03/18/2009 | CN101386273A Method and system for controlling power inverters in electric drives of vehicles with two-mode transmissions |
| 03/18/2009 | CN101386078A Variable-frequency control drill machine |
| 03/18/2009 | CN100471034C Independent safety processor for disabling the operation of high power devices |
| 03/17/2009 | US7504796 Inverter device |
| 03/17/2009 | US7504784 Motor driving apparatus of washing and drying machine |
| 03/12/2009 | WO2009033080A2 System and method for generating a drive signal |
| 03/12/2009 | US20090066282 Serial backplane for medium voltage motor drive system |
| 03/12/2009 | US20090066271 Method and system for converting dc power to ac power |
| 03/12/2009 | DE112007000286T5 Elektromotorantriebs-Steuerungsverfahren und -gerät Electric motor drive control method and apparatus |
| 03/12/2009 | DE102008034667A1 Effizienter Arbeitspunkt für ein Doppelseitiges Wechselrichtersystem Efficient operating point for a double-sided inverter system |
| 03/12/2009 | DE102007025985B3 Steuereinrichtung für ein Elektrohandwerkzeug A control device for an electric hand tool |
| 03/11/2009 | EP2034608A1 Inverter control method |
| 03/11/2009 | EP2034607A1 Motorized vehicle |
| 03/11/2009 | EP2034606A1 Method for operating an electric rotary machine |
| 03/11/2009 | EP2034604A1 Ac rotating machine controller |
| 03/11/2009 | CN201207633Y Power saving device for AC three phase asynchronous motor |
| 03/11/2009 | CN201207632Y Multi-speed controller for oil pumping machine |
| 03/11/2009 | CN201207630Y Input and output torque balancing controller |
| 03/11/2009 | CN201207137Y Explosion-proof frequency variant electric control device for mining |
| 03/11/2009 | CN101385236A Earth-fault detecting method |
| 03/11/2009 | CN101385226A Multiphase load control method |
| 03/11/2009 | CN101383590A Dragging device with high starting performance induction motor and frequency transformer cooperatively running |
| 03/11/2009 | CN101383589A High voltage frequency converting speed regulating system having remote monitoring and saved energy metering |
| 03/11/2009 | CN101383588A Method for tracing motor rotation speed by frequency transformer and device thereof |
| 03/11/2009 | CN101383587A Method and apparatus for active voltage control of electric motors |
| 03/11/2009 | CN101383586A Motor electricity saving device and motor electricity saving method |
| 03/11/2009 | CN101383584A Current detector unit and motor control device |
| 03/11/2009 | CN101383581A Absolute position sensor for field-oriented control of an induction motor |
| 03/11/2009 | CN100468952C Intelligent power saving device for AC motor |
| 03/11/2009 | CN100468937C Electric motor drive |
| 03/10/2009 | US7501787 Method for controlling AC motor |
| 03/10/2009 | US7501785 Starting system for a single-phase induction motor |
| 03/05/2009 | WO2009028053A1 Ac/dc converter, and compressor driving unit and air conditioner utilizing the same |
| 03/05/2009 | US20090058351 Control method and system |
| 03/05/2009 | US20090058350 Junction temperature reduction for three phase inverters modules |
| 03/05/2009 | US20090058339 Electric motor drive apparatus, hybrid vehicle with the same and stop control method of electric power converting device |
| 03/05/2009 | US20090058334 Current Detector Unit And Motor Control Device |
| 03/05/2009 | US20090058326 Hybrid vehicle and method of controlling the same |