| 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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| 08/13/2009 | US20090200970 Chopper control system for rotary machines |
| 08/13/2009 | DE102008000277A1 Method for controlling electric motor, involves producing clocked phase voltage, and operating switching element in initial mode by low amplitude of current profile in particular time segment |
| 08/12/2009 | CN201290092Y Pressure-regulating and energy-saving controller for asynchronous motor |
| 08/12/2009 | CN201290091Y Switch device capable of adjusting and displaying motor rotary speed |
| 08/12/2009 | CN201290090Y Device for compensating inverse rate of large-capacity frequency changer |
| 08/12/2009 | CN101507101A Permanent magnet synchronization motor vector control device |
| 08/12/2009 | CN101507100A AC motor vector control apparatus |
| 08/12/2009 | CN101505135A Controllable flux permanent magnet synchronous motor driving apparatus for built-in mixed rotor |
| 08/12/2009 | CN101505134A Alternating current motor drive circuit and electric vehicle drive circuit |
| 08/12/2009 | CN101505133A Permanent magnet AC motor systems and control algorithm restart methods |
| 08/12/2009 | CN100527042C Method and system for managing the voltage on the DC bus of a speed controller for an AC motor |
| 08/12/2009 | CN100526687C Drive system for chain sprockets of chain drives |
| 08/12/2009 | CN100526644C Apparatus for controlling driving of reciprocating compressor and method thereof |
| 08/11/2009 | US7573227 Controller and control method of permanent magnet type rotary motor |
| 08/11/2009 | US7573226 Motor and motor drive system |
| 08/06/2009 | WO2009096066A1 Rotating armature controller |
| 08/06/2009 | WO2009096065A1 Electric motor control apparatus and driving apparatus |
| 08/06/2009 | WO2009095963A1 Magnetic pole position estimation method for ac synchronous motor |
| 08/06/2009 | US20090196764 High frequency electric-drive with multi-pole motor for gas pipeline and storage compression applications |
| 08/06/2009 | DE102008007563A1 Circuit arrangement for e.g. monitoring tachometer that is used for detecting speed of motor of washer dryer, has control terminal connected with voltage source by switching resistance that has high resistance than ohmic resistance |
| 08/06/2009 | DE102008007401A1 Universal motor operating method for e.g. washing machine, involves executing field switching depending on operating condition of universal motor, and conducting field switching depending on power reserve of universal motor |
| 08/05/2009 | CN101499773A Motor control system including electrical insulation deterioration detecting system |
| 08/05/2009 | CN101499772A Cascade 5 level frequency variant speed regulating circuit based on DSP and working method thereof |
| 08/05/2009 | CN101499771A Frequency-changing speed-regulating driver for energy feedback three phase motor with three phase electric power |
| 08/05/2009 | CN101499770A Passive compensating and energy saving apparatus for digital large power winding asynchronous motor |
| 08/05/2009 | CN101499769A Three phase rat cage asynchronous motor having self interference resisting speed regulating circuit |
| 08/05/2009 | CN101499768A Electronic power-saving device for three phase sewing machine |
| 08/05/2009 | CN101499758A Controller for multi-phase electric motor |
| 08/05/2009 | CN100525069C Less stage multiple increasing volume type high and medium voltage variable frequency speed regulating integrated device |
| 08/05/2009 | CN100525068C Method for driving synchronous machine to operation using power source type frequency converter |
| 08/05/2009 | CN100525067C Motor speed control circuit |
| 08/05/2009 | CN100523515C Ceiling fan triad control device |
| 08/04/2009 | CA2548678C Device for power adjustment by phase control and method for reduction of harmonic waves |
| 07/30/2009 | WO2006006810A9 Power variable-type motor driving circuit and driving method |
| 07/30/2009 | DE102008005637A1 Electric machine torque controlling method for e.g. hybrid vehicle, involves limiting torque to torque threshold value after voltage value or current value of machine exceeds preset voltage threshold value or preset current threshold value |
| 07/30/2009 | DE102008000147A1 Electrical drive controlling arrangement for vehicle component, has synchronous motor with electronic control unit, where autarkic energy supply for control section of unit is switchable after detection of failure in energy supply |
| 07/29/2009 | CN201282447Y Dual inverter for side control of high-voltage motor speed-governing rotor |
| 07/29/2009 | CN201282446Y High voltage motor parallel connection chopping and double inversion speed governing energy-saving control device |
| 07/29/2009 | CN201282445Y Initiator for power supply of locomotive frequency converting air-conditioner |
| 07/29/2009 | CN201282444Y 380V three-phase motor phase control electricity-saving device |
| 07/29/2009 | CN201282443Y Combined multi-step speed governor |
| 07/29/2009 | CN101496277A Power change device |
| 07/29/2009 | CN100521506C Multi-level frequency conversion driving apparatus with energy conservation unit |
| 07/29/2009 | CN100521505C Inverse changing driving circuit for household electric appliance |
| 07/29/2009 | CN100521504C System and method for increasing output horsepower and efficiency in a motor |
| 07/28/2009 | US7567749 Motor control circuit |
| 07/28/2009 | US7567054 Control circuit and method of controlling rotation frequency of spindle in optical disc drive for reducing frequency difference of output signals respectively corresponding to different disc rotation modes |
| 07/28/2009 | US7567053 Mechatronic integration of motor drive and E-machine, especially smart-E-motor |
| 07/23/2009 | WO2009091319A1 Electric motor |
| 07/23/2009 | WO2009091015A1 Motor control device and electric power steering device |
| 07/23/2009 | WO2009090835A1 Device for controlling electric vehicle and electric vehicle equipped with the control device, and electric vehicle control method and computer readable recording medium on which program for allowing computer to execute the control method is recorded |
| 07/23/2009 | WO2009090755A1 Controller of power converter |
| 07/23/2009 | US20090184681 Electrically Powered Vehicle |
| 07/23/2009 | US20090184678 Permanent magnet ac motor systems and control algorithm restart methods |
| 07/23/2009 | DE102008058440A1 Vorrichtungen und Verfahren zum Abtasten und Regeln von Phasenströmen und Elektromotorantriebssysteme Devices and methods for sensing and regulation phase currents and electric motor drive systems |
| 07/23/2009 | DE102008004013A1 Drive system controlling method for asynchronous drive motor of dump truck, involves driving electric motor with rotary field frequency in warming phase after stopping of motor with specific percentage slippage |
| 07/22/2009 | EP2080264A1 Variable speed drive for subsea applications |
| 07/22/2009 | CN201278506Y Singlechip-controlled motor control system |
| 07/22/2009 | CN201278505Y Motor control system |
| 07/22/2009 | CN101488728A Elevator driving inverter system without electrolytic capacitor |
| 07/22/2009 | CN101488727A Undisturbed switching variable frequency speed control system for medium voltage electric motor and speed control method |
| 07/22/2009 | CN100517937C Power conversion system |
| 07/16/2009 | WO2009087991A1 Motor control device and electric power steering device |
| 07/16/2009 | WO2009087277A1 Apparatus, system and method for electric power supply |
| 07/16/2009 | US20090179608 Method and system for controlling a power inverter in electric drives |
| 07/16/2009 | DE102008004039A1 Drive system controlling method for adjusting swiveling joint in rail-mounted vehicle e.g. underground rail car, involves operating pulse power converter and operating drive system with slip exceeding transition slip of asynchronous motor |
| 07/15/2009 | EP2079161A1 Alternating current motor drive circuit and electric vehicle drive circuit |
| 07/15/2009 | EP2079158A1 Power converter |
| 07/15/2009 | CN201274460Y Multifunctional intelligent control apparatus for wind and electricity powered oil extractor |
| 07/15/2009 | CN201274459Y Driving control circuit for three-phase motor |
| 07/15/2009 | CN101483406A Speed regulator for electric fan |
| 07/15/2009 | CN100514826C Motor drive control apparatus, motor drive control method |
| 07/15/2009 | CN100514825C Load driver capable of suppressing overcurrent |
| 07/15/2009 | CN100513676C Method of controlling motor-driven washing machine and control system for the same |
| 07/14/2009 | US7560896 Vector control apparatus for permanent magnet motor |
| 07/14/2009 | US7559752 Dual-shaft vacuum pump |
| 07/09/2009 | WO2009084359A1 Rotating electric machine control system |
| 07/09/2009 | WO2009084358A1 Rotating electric machine control system |
| 07/09/2009 | WO2009084354A1 Winding change-over switch of three-phase ac motor |
| 07/09/2009 | WO2009084342A1 Electrically driven power steering device |
| 07/09/2009 | WO2009084341A1 Electrically driven power steering device |
| 07/09/2009 | WO2009084290A1 Converter apparatus, rotary electric machine controller and drive unit |
| 07/09/2009 | US20090174360 Method And Device For Reducing The Influence Of A DC Component In A Load Current Of An Asynchronous Three-Phase Motor |
| 07/09/2009 | DE102008052921A1 Verfahren und System zum Steuern eines Wechselrichters bei Elektroantrieben Method and system for controlling an inverter in electric drives |
| 07/08/2009 | CN201270497Y Variable frequency and power frequency operation main circuit structure for three phase AC electric motor |
| 07/08/2009 | CN201270496Y Intelligent high efficiency power saver |
| 07/08/2009 | CN201270495Y Electricity saving device |
| 07/08/2009 | CN201270494Y Energy saving control cabinet for three phase AC motor |
| 07/08/2009 | CN101479928A Inverter control device and its operation method |
| 07/08/2009 | CN101479927A Motorized vehicle |
| 07/08/2009 | CN101478284A Motor system capable of lowering common mode noise |
| 07/08/2009 | CN100511967C Controller medium voltage brushless D.C. electric motor |
| 07/08/2009 | CN100511966C Contrl device for AC motor |
| 07/08/2009 | CN100511961C 逆变器装置 Inverter means |
| 07/08/2009 | CN100511955C Inverter device |
| 07/08/2009 | CN100510235C Method of controlling motor-driven washing machine and control system for the same |
| 07/08/2009 | CN100510234C Method of controlling motor-driven washing machine and control system for the same |
| 07/07/2009 | US7555912 System for precharging a DC link in a variable speed drive |
| 07/07/2009 | CA2371322C Process and device for the control and regulation of an alternating current, specifically synchronous, electric rotating machine |
| 07/02/2009 | US20090171554 Internal Combustion Engine Stop Controller and Stop Control Method |