| 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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| 03/26/2013 | US8405344 Method and apparatus for estimating a rotation speed of an electric motor |
| 03/26/2013 | US8405343 Inverter unit, integrated circuit chip, and vehicle drive apparatus |
| 03/26/2013 | US8405341 Synchronous electric motor system |
| 03/21/2013 | WO2013039182A1 Electric turning control apparatus and control method for electric motor for turning |
| 03/21/2013 | WO2013038244A1 Motor control system |
| 03/21/2013 | US20130069569 Power factor correction circuit, and power supply device and motor driving device having the same |
| 03/21/2013 | US20130069564 Power controller |
| 03/21/2013 | DE102012216103A1 Pwm-strategien zur verringerung der umrichter-hotspot-temperatur und gesamtverluste Pwm strategies designed to reduce the inverter-hotspot-temperature and total losses |
| 03/20/2013 | EP2571160A1 Drive system for high voltage AC motor |
| 03/20/2013 | EP2571157A1 Method and device for controlling power to an electric machine |
| 03/20/2013 | CN202818226U Motor driver based on separated IGBT and single-layer PCB |
| 03/20/2013 | CN202818225U Painting roller frequency conversion and speed regulation control circuit |
| 03/20/2013 | CN202818224U Double-ARM processor based control structure for frequency converter |
| 03/20/2013 | CN202818223U AC motor speed controller formed by a phase-locked loop module |
| 03/20/2013 | CN202818222U An intelligent energy-saving control device of an oil pumping unit |
| 03/20/2013 | CN202818221U Rotor control speed controller for asynchronous coiling motor |
| 03/20/2013 | CN202803726U Dust collector constant-pressure frequency conversion control device |
| 03/20/2013 | CN102986133A Control device without a rotation sensor |
| 03/20/2013 | CN102983810A Control device of power conversion device |
| 03/20/2013 | CN102983809A Alternating current variable frequency motor control system based on hand wheel and foot switch and control method thereof |
| 03/20/2013 | CN102171922B Ac electric motor controlling apparatus and controlling method |
| 03/20/2013 | CN101803171B Rotating armature controller |
| 03/20/2013 | CN101636902B Permanent magnet rotary electric machine and permanent magnet motor drive system |
| 03/19/2013 | US8400100 Electric power converter |
| 03/14/2013 | WO2013035382A1 Control system for synchronous motor |
| 03/14/2013 | WO2013035185A1 Overtemperature protection device for motor |
| 03/14/2013 | WO2013035128A1 Variable speed driver for induction motor for road tunnel jet fan driven via long cable |
| 03/14/2013 | WO2013034965A1 Motor control system |
| 03/14/2013 | US20130063070 Medium voltage variable frequency driving system |
| 03/14/2013 | CA2848001A1 Over temperature protection device for electric motors |
| 03/13/2013 | EP2568597A1 Refrigerating apparatus |
| 03/13/2013 | EP2567433A1 Variable speed drive |
| 03/13/2013 | CN202798575U Intelligent energy management and control system of fan, water pump and air compressor |
| 03/13/2013 | CN202798574U Intelligent load tracking power-saving device |
| 03/13/2013 | CN202798573U Alternating current motor controller assembly |
| 03/13/2013 | CN202798572U Alternating current motor controller with output current sensor |
| 03/13/2013 | CN202798571U Explosion suppression type frequency conversion speed regulation controller for storage-battery motor vehicle |
| 03/13/2013 | CN202798570U High voltage variable frequency control system |
| 03/13/2013 | CN202798569U Control device for walnut milk pulping machine |
| 03/13/2013 | CN202798568U Three-phase asynchronous motor energy-saving device |
| 03/13/2013 | CN202798486U Alternating current controller and power modules thereof |
| 03/13/2013 | CN202798485U Alternating current controller and power unit thereof |
| 03/13/2013 | CN202788767U Automatic frequency conversion device of pumping unit |
| 03/13/2013 | CN202781283U Speed limiting device of horizontal cutting machine |
| 03/13/2013 | CN102971960A Method and device for determining a momentary torque of an electronically switched electric machine and for regulating the average torque |
| 03/13/2013 | CN102971959A Variable electrical generator |
| 03/13/2013 | CN102971956A Power conversion system |
| 03/13/2013 | CN102971946A 逆变器 Inverter |
| 03/13/2013 | CN102969974A Electric power tool |
| 03/13/2013 | CN102969973A High-voltage high-capacity frequency converter system capable of performing four-quadrant operation based on modular multi-level converters |
| 03/13/2013 | CN102969972A Variable-frequency speed control system of motor |
| 03/13/2013 | CN102969860A Multi-phase brushless double-fed motor and frequency converting control system |
| 03/13/2013 | CN101919157B Rotating electric device control system and vehicle drive system using the rotating electric device control system |
| 03/13/2013 | CN101825024B Stepless regulating engine of power battery automobile and automobile using same |
| 03/13/2013 | CN101803176B 可变磁通驱动系统 The variable flux drive system |
| 03/12/2013 | CA2550898C Pulse width modulation drive and method for ornaments with movable components |
| 03/07/2013 | WO2013031828A1 Power conversion device |
| 03/07/2013 | WO2013031560A1 Drive control device, electrical apparatus, and drive control method |
| 03/07/2013 | WO2011161408A3 Controller |
| 03/07/2013 | US20130057188 Apparatus for controlling boost converter |
| 03/07/2013 | US20130057183 Hydraulic electricity generator and separation type electric fluid pump driven by the same |
| 03/06/2013 | EP2566047A2 Motor drive device and pump comprising the same |
| 03/06/2013 | EP2566043A1 Power conversion device |
| 03/06/2013 | CN202772839U Oil pumping machine frequency conversion remote transmission control cabinet |
| 03/06/2013 | CN202772834U AC asynchronous motor direct torque control device |
| 03/06/2013 | CN202772833U Constant-power control device and constant-power traction drive system |
| 03/06/2013 | CN102959855A Motor drive apparatus and vehicle mounted with same |
| 03/06/2013 | CN102957378A Modularized multi-level converter-based high-voltage high-capacity frequency changer system |
| 03/06/2013 | CN102957377A DC trailing cable system for tethered mining vehicles |
| 03/06/2013 | CN102957376A Electric power converter control device and electric power conversion control method |
| 03/06/2013 | CN102957375A Low-medium-high voltage phase shift rotating frequency converter formed by three-phase rectifier bridges and speed regulating system thereof |
| 03/06/2013 | CN102954012A Frequency conversion control circuit of forced and induced draft fan |
| 03/06/2013 | CN102006009B Internal freewheeling type constant energy chopping variable-frequency speed regulation method |
| 03/06/2013 | CN101821150B Electric power-steering controller |
| 03/06/2013 | CN101636900B Transient condition detection for an electric power generation system |
| 03/06/2013 | CN101499771B Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power |
| 03/05/2013 | US8390241 Motor drive based on III-nitride devices |
| 03/05/2013 | US8390223 Control device for electric motor drive device |
| 02/28/2013 | WO2013027527A1 Motor control device |
| 02/28/2013 | WO2013027348A1 Motor driving apparatus and brushless motor |
| 02/28/2013 | US20130049666 Device and method for controlling motor |
| 02/28/2013 | US20130049657 Regenerative load electric power management systems and methods |
| 02/27/2013 | EP2562928A1 Control device for motor drive system and vehicle having same |
| 02/27/2013 | EP2562927A1 Rotor phase/velocity estimation device for alternating-current motor |
| 02/27/2013 | CN202759410U Motor drive system of electric automobile |
| 02/27/2013 | CN102948066A Electric motor control |
| 02/27/2013 | CN102948065A Injection molding machine and power source regeneration converter |
| 02/27/2013 | CN102948061A Injection molding machine and power source regeneration converter |
| 02/27/2013 | CN102946137A Harmonic wave reactive compensation control method based on high-voltage inverter bypass |
| 02/27/2013 | CN102946136A Circuit and method for switching from power frequency of high-voltage inverter to variable frequency without disturbance |
| 02/27/2013 | CN102082546B Device and method for pulse width modulation (PWM) dead-zone compensation of inverter |
| 02/27/2013 | CN101884164B Ac motor controller |
| 02/27/2013 | CN101499773B Motor control system including electrical insulation deterioration detecting system |
| 02/27/2013 | CN101320956B Method for operating a three-phase rotating electric machine and device for implementing the method |
| 02/27/2013 | CN101106353B Device for the controlled power consumption of electric drives in machinery |
| 02/26/2013 | US8384339 Control system for a compressor actuated by an electric motor, an assembly composed of an electric induction motor, an electronic control and an arrangement for motor-compressors, and a method of controlling an electric motor |
| 02/26/2013 | US8384337 Conveyor system |
| 02/26/2013 | US8384336 Multiphase motor driving device |
| 02/26/2013 | US8384335 Motor driving apparatus having DC link voltage regulating function |
| 02/26/2013 | US8384327 Control apparatus for electric rotating machine |