| 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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| 07/27/2011 | CN201910766U Frequency-conversion electricity saver for single phase fan |
| 07/27/2011 | CN201906654U Electric control cabinet for eddy current sorting machine |
| 07/27/2011 | CN102137770A Vehicle operation sound control apparatus and control method |
| 07/27/2011 | CN102136824A Control method for frequency converter |
| 07/27/2011 | CN101615876B Timing control system and method for non-salient pole permanent magnet synchronous motor |
| 07/27/2011 | CN101290524B Fan circuit |
| 07/26/2011 | US7986121 Inverter apparatus and a semiconductor device used for the same |
| 07/22/2011 | CA2727469A1 Controller for a rotating electrical machine |
| 07/21/2011 | WO2011087126A1 Saddled vehicle |
| 07/21/2011 | WO2011087106A1 Power inverter, induction heater, motor control device, and power inverting method |
| 07/21/2011 | WO2011085805A1 Method and device for operating an asynchronous motor having increased efficiency |
| 07/21/2011 | US20110175558 Power converting apparatus for motor driving |
| 07/21/2011 | US20110175557 Motor driving apparatus having power regeneration function |
| 07/21/2011 | DE102010055224A1 Motorantriebsvorrichtung mit einer Energierückgewinnungsfunktion Motor driving apparatus having a power recovery function |
| 07/20/2011 | CN201904757U Novel 6kV medium voltage frequency converter |
| 07/20/2011 | CN201904756U Energy-saving centrifuge power distribution device for hydrogen and calcium production |
| 07/20/2011 | CN201904755U Six-phase bridge arm driving device capable of generating dead zone signals |
| 07/20/2011 | CN201904726U Power source supplier of electric upsetting machine |
| 07/20/2011 | CN201904716U Intelligent power module component and variable frequency speed regulation system |
| 07/20/2011 | CN102130653A Method and system for controlling an electric motor using zero current offset value cancellation |
| 07/20/2011 | CN102130652A Motor drive control system |
| 07/20/2011 | CN102130648A Apparatus and method for controlling operation of inverter system |
| 07/20/2011 | CN101572526B Control system of variable-frequency construction elevator |
| 07/19/2011 | US7983800 Apparatus and method for controlling fan motor of air conditioner |
| 07/19/2011 | US7982426 Electric power system |
| 07/14/2011 | WO2011028959A3 Variable coil configuration system, apparatus and method |
| 07/14/2011 | US20110170318 Variable Voltage Converter (VVC) with Integrated Battery Charger |
| 07/14/2011 | US20110169443 Motor drive load damping |
| 07/14/2011 | US20110169435 Ec motor assembly |
| 07/14/2011 | DE112008004002T5 Elektrische Energieversorgungseinheit für ein Fahrzeug Electric power supply unit for a vehicle |
| 07/13/2011 | EP2343800A1 Ac electric motor controlling apparatus and controlling method |
| 07/13/2011 | EP2343799A1 Control device for permanent magnet synchronization electric motor |
| 07/13/2011 | CN201898476U Automatic power frequency switching device for preventing unexpected halt of motor |
| 07/13/2011 | CN201894252U Zipper maker |
| 07/13/2011 | CN102122917A Electric pitch change control device and electric pitch change control system |
| 07/13/2011 | CN101432961B Control device of AC rotary motor |
| 07/13/2011 | CN101351958B Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network |
| 07/12/2011 | US7977900 Inverter system for vehicle-mounted air conditioner |
| 07/12/2011 | US7977898 Current sensing for a multi-phase DC/DC boost converter |
| 07/12/2011 | CA2306531C Method and apparatus for delivering power to mechanical or electrical system |
| 07/07/2011 | WO2011080823A1 Drive control device of alternating-current motor |
| 07/07/2011 | WO2011080822A1 Power conversion device for electric vehicle |
| 07/07/2011 | WO2011080792A1 Control device for an asynchronous electric machine, electric propulsion system- comprising said device, and method for controlling an asynchronous electric machine |
| 07/07/2011 | WO2011080791A1 Control device for an asynchronous electric machine, electric propulsion system- comprising said device, and method for controlling an asynchronous electric machine |
| 07/07/2011 | WO2010122401A8 Vector control method for electric motors |
| 07/07/2011 | US20110163703 Direct Current Brushless Motor Capable Of Generating Electric Power |
| 07/07/2011 | CA2785666A1 Ac motor drive control device |
| 07/06/2011 | EP2341609A1 Motor control device |
| 07/06/2011 | EP2340609A2 Voltage control and power factor correction in ac induction motors |
| 07/06/2011 | CN201893754U Variable frequency speed regulator for three-roller machine |
| 07/06/2011 | CN201893753U Actuator driving device with modularized structure |
| 07/06/2011 | CN201893752U Internal feedback cascade high-voltage frequency converter based on dual PWM (Pulse-Width Modulation) converter |
| 07/06/2011 | CN201893751U Ground air suction air conditioner frequency converter |
| 07/06/2011 | CN201893750U Operating circuit with four independent or combined frequency conversion units |
| 07/06/2011 | CN201893710U Automatic control circuit for current of drive motor of electric automobile |
| 07/06/2011 | CN201890971U Practical frequency conversion monitor system |
| 07/06/2011 | CN102118103A Smooth narrow pulse compensating method of FPGA in frequency converter |
| 07/06/2011 | CN101589546B Motor control device, control method, and control program |
| 07/06/2011 | CN101447755B Controller of multi-phase electric motor |
| 07/06/2011 | CN101391416B Power tool |
| 07/06/2011 | CN101277072B Electric power transformation device and method |
| 07/05/2011 | US7973510 Apparatus for controlling inverter |
| 06/30/2011 | WO2011078125A1 Control device of hybrid construction equipment |
| 06/30/2011 | WO2011077919A1 Reverse recovery current prevention device, and motor driving device |
| 06/30/2011 | WO2011077829A1 Motor control apparatus and magnetic-pole position detection method therefor |
| 06/30/2011 | WO2011077714A1 Device for driving/controlling ac motor |
| 06/30/2011 | US20110156632 Dead-time compensation apparatus of pwm inverter and method thereof |
| 06/30/2011 | DE112008003921T5 PM-Motorantriebsstromversorgungsvorrichtung PM motor drive power supply device |
| 06/30/2011 | DE102010061529A1 Motorantriebsvorrichtung und dieselbe verwendende Servo-Lenkvorrichtung Motor driving apparatus used and the same servo-steering device |
| 06/30/2011 | DE102010061528A1 Motorantriebsvorrichtung und dieselbe verwendende elektrische Servo-Lenkvorrichtung Motor driving apparatus used and the same electric power steering device |
| 06/29/2011 | EP2338225A1 Energy recovery device in a variable-frequency drive |
| 06/29/2011 | EP1974462B1 Method and system of control of the converter of an electricity generation facility connected to an electricity network in the presence of voltage sags in said network |
| 06/29/2011 | CN201887722U Flameproof and intrinsic safety type variable-frequency speed regulating device for mines |
| 06/29/2011 | CN201887721U Motor driver and device for updating programming configuration thereof and obtaining data therefrom |
| 06/29/2011 | CN201887720U High-efficiency intelligent electricity-saving control system |
| 06/29/2011 | CN201887719U Full automatic three-phase motor power adapter |
| 06/29/2011 | CN102113204A Synchronous electric motor driving system |
| 06/29/2011 | CN102113203A Device and method for controlling AC electric motor |
| 06/29/2011 | CN101567639B Phase current detector |
| 06/29/2011 | CN101483406B Speed regulator for electric fan |
| 06/28/2011 | CA2420497C Vacuum cleaner having a plurality of power modes |
| 06/23/2011 | WO2011074972A1 System for driving elongated electric machines |
| 06/23/2011 | US20110153133 Operating noise control device and operating noise control method for vehicle |
| 06/23/2011 | US20110149678 Methods of and Systems for Improving the Operation of Electric Motor Driven Equipment |
| 06/22/2011 | EP2337210A1 Power converter |
| 06/22/2011 | EP2336002A1 Electric power steering device |
| 06/22/2011 | CN201878092U Intelligent power-saving device |
| 06/22/2011 | CN201878091U Multifunctional integrated drive controller system |
| 06/22/2011 | CN201878078U Home appliance using brushless direct current motor |
| 06/22/2011 | CN102106070A AC-DC converter, AC-DC converter control method, motor driving device, compressor driving device, air conditioner, and heat pump-type hot-water supply device |
| 06/22/2011 | CN101404449B Voltage converter and voltage conversion control method |
| 06/22/2011 | CN101262200B Multi-frequency converter speed-adjusting system for low-voltage high-power multi-branch AC motor |
| 06/21/2011 | US7965057 Method for operation of a three-phase rotating electrical machine, and an apparatus for carrying out the method |
| 06/21/2011 | US7965056 Control apparatus of power conversion system |
| 06/16/2011 | WO2011070609A1 Propulsion control device |
| 06/16/2011 | US20110140642 Power conversion device |
| 06/16/2011 | DE102009057485A1 Actuator e.g. electro thermal actuator, for e.g. opening zone valve utilized to control heater circuit of floor heater, has switching unit for connecting electric lines to actuating element such that actuating element moves in direction |
| 06/16/2011 | CA2783782A1 Propulsion control apparatus |
| 06/15/2011 | EP2333948A2 Inverter control device and motor drive system |
| 06/15/2011 | EP2331976A1 Method and apparatus for evaluating energy savings |