| 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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| 01/20/2011 | US20110012543 Electric power converter |
| 01/20/2011 | US20110011658 Load driving system and electric vehicle using the system |
| 01/20/2011 | US20110010961 Dryer Motor and Control |
| 01/20/2011 | DE102009031875A1 Method for operating three-phase alternating current motor, involves opening electrically actuated switching point for currentless switching of three-phase alternating current motor |
| 01/19/2011 | EP2276167A2 Apparatus and method for providing information relating to a motor |
| 01/19/2011 | CN201717829U Plate strip type speed adjustment device for reduction furnace |
| 01/19/2011 | CN201717828U Intelligent power-saving equipment |
| 01/19/2011 | CN201717639U Novel electricity-saving device for oil pumping unit in oil field |
| 01/19/2011 | CN201716555U Intelligent electric actuator |
| 01/19/2011 | CN201715781U Air-conditioning system with two work modes |
| 01/19/2011 | CN101953065A Motor drive control device |
| 01/19/2011 | CN101953064A Electric motor drive device and control method thereof |
| 01/19/2011 | CN101953047A Driving controller of AC motor |
| 01/19/2011 | CN101950978A Energy-saving emergency type elevator feedback power system |
| 01/19/2011 | CN101364780B Method and apparatus for controlling electric motor |
| 01/19/2011 | CN101297471B 电动机驱动系统 The motor drive system |
| 01/18/2011 | US7872441 Systems and methods for operating Z-source inverter inductors in a continuous current mode |
| 01/13/2011 | WO2011005103A1 Method and device for controlling inductive loads |
| 01/13/2011 | WO2011004871A1 Power-consumption calculating method of motor driving device, and control method of motor driving device using the power-consumption calculating method |
| 01/13/2011 | WO2011004115A1 Control system for rotary machine having instrumented rolling |
| 01/13/2011 | WO2010107801A3 Induction motor torque control in a pumping system |
| 01/13/2011 | US20110006723 Motor drive control apparatus, vehicle with motor drive control apparatus, and motor drive control method |
| 01/13/2011 | US20110006718 Inverter device |
| 01/13/2011 | US20110006709 Method and apparatus for ac motor control |
| 01/13/2011 | DE112009000371T5 Wellenformstrommonitor, der den RDSon eines Low-Side-Brücken-FET verwendet Current waveform monitor that uses the RDSon a low-side FET bridge |
| 01/13/2011 | DE102009031257A1 Umrichter und Verfahren zum Betreiben einer Anlage mit Umrichter Converter and method for operating a system with inverter |
| 01/12/2011 | EP2273666A1 Device and method for controlling vehicle |
| 01/12/2011 | EP2273661A1 Converter control method |
| 01/12/2011 | CN201708766U Yaw integrated motor with frequency converter |
| 01/12/2011 | CN201708765U Automobile motor controller |
| 01/12/2011 | CN201708764U Structure of drive circuit of radiator fan |
| 01/12/2011 | CN201708763U Motor controller of oilfield pumping unit |
| 01/12/2011 | CN101946399A Electric motor |
| 01/12/2011 | CN101946391A Permanent magnet type dynamo electric machine, method for assembling permanent magnet type dynamo electric machine, method for disassembling permanent magnet type dynamo electric machine and permanent magnet motor drive system |
| 01/12/2011 | CN101946386A Permanent magnet type rotary motor, assembly method for permanent magnet type rotary motor, disassembly method for permanent magnet type rotary motor, and permanent magnet type rotary motor drive system |
| 01/12/2011 | CN101944878A Induction motor parameter identification |
| 01/12/2011 | CN101944877A Estimation of parameters of an induction machine |
| 01/12/2011 | CN101527518B Frequency converter device with high-resolution variable voltage/frequency control |
| 01/11/2011 | US7869233 Voltage conversion device and computer-readable recording medium having program recorded thereon for computer to control voltage conversion by voltage conversion device |
| 01/11/2011 | US7868581 Induction motor analysis and control method |
| 01/11/2011 | US7868573 Drive circuits |
| 01/06/2011 | WO2011002015A1 Motor driving device |
| 01/06/2011 | WO2011001768A1 Motor drive control device |
| 01/06/2011 | WO2010119662A9 Synchronous electric motor driving system |
| 01/06/2011 | US20110000736 Auxiliary power supply device and electric power steering device |
| 01/05/2011 | EP2270957A1 Permanent magnet synchronization motor |
| 01/05/2011 | EP2270956A2 Synchronous electric machine comprising a stator and at least one rotor and associated control device. |
| 01/05/2011 | DE102010028097A1 Verfahren und Systeme zum Detektieren eines Stromsensorfehlers Methods and systems for detecting a current sensor error |
| 01/05/2011 | CN201699653U Feedback mine hoist variable-frequency speed regulating device |
| 01/05/2011 | CN201699652U 1140V frequency-conversion speed regulating device of coal winning machine |
| 01/05/2011 | CN201699651U Energy-saving equipment for AC motor |
| 01/05/2011 | CN201699650U Electric machine voltage compensation control device for farmland water pump |
| 01/05/2011 | CN201699649U Power distribution device for overhead traveling crane primary hoisting motor |
| 01/05/2011 | CN201699471U Variable-frequency emergency power supply |
| 01/05/2011 | CN101938251A Power output method of alternating current asynchronous transmission system |
| 01/05/2011 | CN101938250A Adjustable frequency drive and system |
| 01/05/2011 | CN101938249A Direct current inversion speed-control circuit of lithium battery locomotive |
| 01/05/2011 | CN101936285A Cooling frequency-conversion control system of compressor |
| 01/05/2011 | CN101527539B Speed adjustment control system of anti-inversion failure seamless switching motor and control method thereof |
| 01/05/2011 | CN101515781B Universal servocontrol platform device for motor-operating mechanism of high-voltage switch apparatus and method |
| 01/05/2011 | CN101001068B Driving apparatus and driving system for electric motor |
| 01/04/2011 | US7863854 Heat-exchange cooling device and power supply circuit driver used therefore |
| 01/04/2011 | CA2555186C Power output apparatus and vehicle including the same |
| 12/30/2010 | US20100327799 Adjustable frequency drive and system |
| 12/30/2010 | US20100327798 Applying a control unit to an asynchronous machine which is operated without a rotary encoder |
| 12/30/2010 | US20100327795 Conveyor system |
| 12/30/2010 | US20100327793 Power transmission method and power transmission apparatus |
| 12/30/2010 | DE102009030727A1 Electric drive for vehicle, has electric motor e.g. asynchronous motor or synchronous motor, with winding arrangement that comprises sub-windings and converter that comprises sub-converters |
| 12/29/2010 | WO2010150786A1 Control device for electric motor drive unit |
| 12/29/2010 | EP2265532A1 Power supply apparatus and power supply arrangement |
| 12/29/2010 | CN201690413U Motor controller of automobile |
| 12/29/2010 | CN201690412U Ceaseless intelligent power-saving device |
| 12/29/2010 | CN201690411U Transducer control cabinet with Ethernet interface |
| 12/29/2010 | CN201690304U Alternating current variable frequency transmission device |
| 12/29/2010 | CN101931366A Super capacitor-based energy-saving drive circuit of motor and control method |
| 12/29/2010 | CN101931365A Automotive power electronics with wide band gap power transistors |
| 12/29/2010 | CN101931360A Power transformation device |
| 12/29/2010 | CN101931353A Control method for brushless direct current motor for automotive air conditioning fan |
| 12/29/2010 | CN101442290B Overmodulation method and system for bi-level space vector pulse duration modulation |
| 12/29/2010 | CN101330273B Method for automatically hoisting torque of universal frequency converter base on active current component |
| 12/28/2010 | US7859217 System and method for operating a soft starter in conjunction with a single to three phase static converter |
| 12/28/2010 | US7859210 Semiconductor device for driving motor, three-phase motor and motor driving apparatus with the semiconductor device and fan motor |
| 12/23/2010 | WO2010146663A1 Synchronous machine starting device |
| 12/23/2010 | US20100320947 Method For Calibrating A Motor Control Circuit To Improve Temperature Measurement In A Electrical Motor |
| 12/23/2010 | US20100320946 Brushless dc motor driver |
| 12/22/2010 | CN201682456U Inductive variable-frequency speed governor |
| 12/22/2010 | CN1992499B Apparatus and method for detecting phase currents of inverter |
| 12/22/2010 | CN101926087A Rotating electric device control system and vehicle drive system |
| 12/22/2010 | CN101926086A Rotating electric device control system and vehicle drive system |
| 12/22/2010 | CN101924518A Three-phase frequency-variable energy-saving device for water pump |
| 12/22/2010 | CN101924517A Inverter device |
| 12/22/2010 | CN101924516A Method for adapting the power of a hoisting winch |
| 12/22/2010 | CN101924486A Inverter controlling apparatus, and air conditioner and washer using the same |
| 12/22/2010 | CN101924437A Dual-mechanical port motor and drive control system thereof |
| 12/22/2010 | CN101457461B Washing/drying machine |
| 12/22/2010 | CN101336173B Power source apparatus for vehicle, vehicle and method of controlling power source apparatus |
| 12/22/2010 | CN101154917B Method and apparatus for PWM control of voltage source inverter to minimize current sampling errors in electric drives |
| 12/22/2010 | CN101142738B Motor drive and compressor drive |
| 12/21/2010 | US7855527 Inverter device |
| 12/21/2010 | US7855526 Power conversion control device, power conversion control method, and power conversion control program |