| 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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| 04/16/2013 | US8421399 Energy saver delay circuit for AC induction motors |
| 04/16/2013 | US8421398 Power control for induction motors using variable frequency AC power |
| 04/11/2013 | WO2013051616A1 Inverter device |
| 04/11/2013 | US20130088177 Device and method for power-saving driving of device having same load pattern |
| 04/11/2013 | DE102009015318B4 Leistungssystem für ein Hybridelektrokraftfahrzeug (HEV) Power system for a hybrid electric vehicle (HEV) |
| 04/10/2013 | EP2579452A1 Control method and control device for an electric power regulator |
| 04/10/2013 | EP2579451A1 Control apparatus and control method for motor |
| 04/10/2013 | EP2579450A1 Rotating electrical-machine control system and method of manipulating magnet temperature of rotating electrical machine |
| 04/10/2013 | EP2577863A1 Electric motor controller and electric motor control system |
| 04/10/2013 | CN202872726U Direct torque control traction variable-frequency speed regulator |
| 04/10/2013 | CN202872725U Internal sampling synchronous signal circuit |
| 04/10/2013 | CN202872724U A voltage fluctuation restart control device used for a frequency converter |
| 04/10/2013 | CN202872723U Intelligent power saver for spinning frame |
| 04/10/2013 | CN202872722U Stroke differential velocity controller for tower type oil pumping unit |
| 04/10/2013 | CN202872708U Controller of direct current brushless motor used for vehicle |
| 04/10/2013 | CN202872656U High-voltage AC (Alternating Current) frequency-conversion speed adjusting device and low-voltage inversion power unit |
| 04/10/2013 | CN202872519U Flameproof motor used for frequency-conversion speed adjustment |
| 04/10/2013 | CN103038999A Blower motor for hvac systems |
| 04/10/2013 | CN103036503A Motor drive control apparatus and air-conditioning equipment |
| 04/10/2013 | CN103036497A Control device and control method of synchronous motor |
| 04/10/2013 | CN103036496A Self-adaption reverse-pushing controlling permanent magnet synchronous motor direct torque control (DTC) system and control method thereof |
| 04/10/2013 | CN103036461A Three-phase rectifying module and applicable system thereof and harmonic suppression method |
| 04/10/2013 | CN103032299A Dual-variable-frequency air compressor unit |
| 04/10/2013 | CN102361427B Variable speed constant frequency control method after grid connection of wind driven generator set |
| 04/10/2013 | CN102082547B Power conversion device |
| 04/10/2013 | CN101926087B Rotating electric device control system and vehicle drive system |
| 04/10/2013 | CN101926086B Rotating electric device control system and vehicle drive system |
| 04/10/2013 | CN101753095B Talking frequency changer and frequency changer system |
| 04/10/2013 | CN101729007B Power converter device and elevator using the same |
| 04/04/2013 | WO2013046893A1 Motor control device |
| 04/04/2013 | WO2013046728A1 Power conversion device |
| 04/04/2013 | WO2013046520A1 Motor control device and motor control method |
| 04/04/2013 | WO2013046462A1 Power conversion control device, power conversion control method, electric motor and vehicle drive system |
| 04/04/2013 | WO2013046461A1 Vector control device for electric motor, electric motor, vehicle drive system, and vector control method for electric motor |
| 04/04/2013 | WO2013046460A1 Control device and method for electric motor, electric motor using same, and vehicle drive system |
| 04/04/2013 | WO2013014334A3 Electricity supply device and elevator system |
| 04/04/2013 | US20130082628 Dc-dc converter |
| 04/04/2013 | US20130082627 Motor current detection apparatus, motor controller, and electric power tool |
| 04/04/2013 | DE10243602B4 Leistungsumrichter, der zum Minimieren von Schaltungsverlusten entworfen ist Power converter which is designed to minimize circuit losses |
| 04/04/2013 | CA2850452A1 Power conversion control device, power conversion control method, electric motor, and vehicle driving system |
| 04/04/2013 | CA2850451A1 Control device and control method for electric motor, and motor and vehicle driving system to which the control device and control method are applied |
| 04/04/2013 | CA2850294A1 Vector control device for electric motor, electric motor, vehicle drive system, and vector control method for electric motor |
| 04/03/2013 | CN202856687U Yarn spreading control device of stitch-knitting machine chopping component |
| 04/03/2013 | CN202856686U Variable-frequency speed-regulation control device for cutting motor of coal mine heading machine |
| 04/03/2013 | CN202856628U Frequency converter automatically adjusting motor current |
| 04/03/2013 | CN103026615A Control apparatus of AC rotating machine |
| 04/03/2013 | CN103026612A Control apparatus for AC rotating machine |
| 04/03/2013 | CN103026071A Hermetically sealed compressor |
| 04/03/2013 | CN103023428A Three-phase motor energy saving device capable of quickly accelerating and decelerating |
| 04/03/2013 | CN103023427A Driver and variable-frequency motor integrated driving system |
| 04/03/2013 | CN103023426A Motor driver and motor driving method |
| 04/03/2013 | CN103023425A Idle speed measuring circuit of high-voltage inverter motor |
| 04/03/2013 | CN103023424A Low-voltage protection method and crane with low-voltage protection function |
| 04/03/2013 | CN103023416A System and method for current estimation for operation of electric motors |
| 04/03/2013 | CN103023392A Low-voltage frequency converter with rotate speed tracking start |
| 04/03/2013 | CN102223138B Motor synchronous modulation method and control system thereof |
| 04/03/2013 | CN102130652B Motor drive control system |
| 04/03/2013 | CN101005266B Universal motor speed controller |
| 04/02/2013 | US8410746 Inverter circuit for vehicles |
| 04/02/2013 | US8410745 Controller for motor, and vehicle |
| 04/02/2013 | US8410744 Motor driving apparatus |
| 04/02/2013 | US8410742 Operating a synchronous motor having a permanent magnet rotor |
| 03/28/2013 | WO2013041416A1 Method and device for controlling power to an electric machine |
| 03/28/2013 | US20130076283 Motor control unit and motor control unit for vehicle steering apparatus |
| 03/28/2013 | DE102012215008A1 System und Verfahren zur Stromabschätzung für den Betrieb von elektrischen Motoren System and method for power estimate for the operation of electrical motors |
| 03/28/2013 | DE102011054620A1 Flurförderzeug mit notbetriebsfähigem elektrischen Antrieb Truck with electric drive notbetriebsfähigem |
| 03/27/2013 | EP2573935A2 Motor control apparatus |
| 03/27/2013 | EP2573934A1 Control device without a rotation sensor |
| 03/27/2013 | EP2573640A1 Spring-loaded drive with active recovery in direct current circuit |
| 03/27/2013 | CN202841052U Motor-driven device set with lowest speed of revolution |
| 03/27/2013 | CN202841051U Electric power control device |
| 03/27/2013 | CN202841050U Cascaded high-voltage inverter speed regulating system with energy feedback function |
| 03/27/2013 | CN202841049U Dual-mode intelligent motor energy saver |
| 03/27/2013 | CN202841048U High-low speed button control frequency converter |
| 03/27/2013 | CN202841046U Fan motor |
| 03/27/2013 | CN202841033U Permanent magnet brushless DC motor and drive circuit thereof |
| 03/27/2013 | CN202840663U Automatic bypass device of high-voltage variable frequency control system |
| 03/27/2013 | CN103001581A Parallel inverter drive system and circulating current restraining device and method therefor |
| 03/27/2013 | CN103001580A Ac (alternating-current)-ac frequency conversion digital vector control and speed regulating system |
| 03/27/2013 | CN103001579A Direct-current active filter based on bidirectional DC-DC (direct current to direct current) converter |
| 03/27/2013 | CN103001578A 马达控制装置 Motor control means |
| 03/27/2013 | CN103001577A Driver with dead time open circuit compensation function |
| 03/27/2013 | CN103001576A PWM (pulse width modulation) based servo system |
| 03/27/2013 | CN103001575A Single-phase motor speed regulation device and flue-cured tobacco equipment |
| 03/27/2013 | CN103001574A Full digital alternating-current servo driving system based on DSP (digital signal processor) |
| 03/27/2013 | CN103001573A Medium-voltage frequency-conversion driving system |
| 03/27/2013 | CN103001572A Direct torque control system |
| 03/27/2013 | CN103001568A Motor control device |
| 03/27/2013 | CN103001554A Rotating electrical machine control device and steering control system |
| 03/27/2013 | CN103001528A Power regeneration rectifier, motor driving system and power regeneration processing method |
| 03/27/2013 | CN103001483A Power factor correction circuit, and power supply device and motor driving device having the same |
| 03/27/2013 | CN102255602B Method and system for smoothly switching alternated current motor from frequency converter power supply to power-frequency power supply |
| 03/27/2013 | CN102055405B Brushless double feed motor control device and direct torque control method thereof |
| 03/27/2013 | CN102035461B Frequency conversion control system and method of paper shredder |
| 03/27/2013 | CN101960712B 逆变器装置 Inverter means |
| 03/27/2013 | CN101677227B Blower motor for HVAC systems |
| 03/27/2013 | CN101662258B Motor controller |
| 03/27/2013 | CN101607531B Double-ended inverter drive system for a fuel cell vehicle and related operating method |
| 03/27/2013 | CN101330272B Oil pump systems and methods for preventing torque overload in motors of oil pump systems |
| 03/27/2013 | CN101316094B Apparatus, systems, and methods for reducing voltage source inverter losses |