| Patents for H02P 23 - Arrangements or methods for the control of ac-motors characterised by a control method other than vector control (5,487) |
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| 04/11/2007 | EP1771939A1 Motor controller |
| 04/11/2007 | CN1945963A DC bus powered crane power system |
| 04/10/2007 | US7202652 Motor driving apparatus incorporating switch device driving apparatus |
| 04/10/2007 | US7202622 Method for controlling an electric motor to reduce EMI |
| 04/04/2007 | CN1941608A Household economical electric washer with speed-adjuster driven |
| 04/03/2007 | US7199549 Feedback parameter estimation for electric machines |
| 04/03/2007 | US7199547 Apparatus, method or system for controlling mobile body |
| 03/29/2007 | US20070070560 Method for estimating dc motor coil temperature, dc motor control method and their devices |
| 03/29/2007 | DE102004053772B4 Antriebsvorrichtung Driving device |
| 03/28/2007 | CN1307782C Control constant adjusting apparatus |
| 03/22/2007 | US20070064359 Motor power line break detection method in ac servo driver |
| 03/22/2007 | DE19739780B4 Drehstrommotor AC motor |
| 03/22/2007 | DE10011295B4 Verfahren und Vorrichtung zum selektiven Löschen parasitärer Gleichgrößen im Spannungsstellbereich von Drehfeldmaschinen ohne Drehgeber Method and apparatus for selective deletion of parasitic dc components in the voltage operating range of induction machines without encoder |
| 03/21/2007 | CN2882114Y Asynchronous-motor energy-saving controller for beam pump |
| 03/21/2007 | CN1933294A Brushless non-slip ring AC asynchronous and synchronous electric machine with rotor winding as armature winding |
| 03/07/2007 | CN1925315A Method and device for realizing real-time control of motor rotation speed |
| 03/07/2007 | CN1925312A 电机速度控制电路 Motor speed control circuit |
| 03/07/2007 | CN1925311A Driving method and device for motor |
| 03/07/2007 | CN1925310A Motor speed control system and load inertia estimating method using inverse operating model |
| 03/07/2007 | CN1925277A Alternating current synchronous motor based on three-phase rotary transformer technology, alternating current wound rotor motor and arrangements for speed regulation |
| 03/07/2007 | CN1303753C Speedless sensor inverse controller of AC asynchronous motor |
| 03/06/2007 | US7187155 Leakage inductance saturation compensation for a slip control technique of a motor drive |
| 03/06/2007 | US7187154 Motor drive apparatus and electric power steering apparatus |
| 03/06/2007 | US7187145 Motor controller |
| 03/01/2007 | WO2006104930A3 System and method for optimizing motor performance by varying flux |
| 03/01/2007 | US20070046247 Method of rotating a polyphase motor at less than rated speed |
| 02/28/2007 | EP1758224A1 Device for associating a command signal to a direction of rotation of an electric motor for a movable barrier |
| 02/27/2007 | US7184902 Motor parameter estimation method and apparatus |
| 02/27/2007 | US7183740 Motor drive apparatus, vehicle having the same mounted therein, and computer readable storage medium having a program stored therein to cause computer to control voltage conversion |
| 02/21/2007 | EP1755212A2 Power factor control for floating frame controller for sensorless control of synchronous machines |
| 02/21/2007 | EP1755211A1 Resistance estimation of an AC electrical motor |
| 02/21/2007 | CN2872704Y Explosive-insulating reactive-power in-situ compensator |
| 02/14/2007 | EP1751839A1 Low loss propulsion system |
| 02/14/2007 | EP0899864B1 Induction motor controller |
| 02/14/2007 | CN1913332A Method and system for starting a sensorless motor |
| 02/13/2007 | US7176674 Measurement of energy by means of a frequency converter |
| 02/08/2007 | WO2007014725A1 Safety switching unit for controlling a safety device into a safe state |
| 02/08/2007 | WO2007014685A1 Method and device for increasing an electric motor efficiency |
| 02/08/2007 | US20070029963 Ac motor control method and control device |
| 02/07/2007 | CN2867721Y Electric motor electricity-saving device |
| 02/07/2007 | CN1909359A Automatic control speed regulation motor |
| 01/31/2007 | EP1747932A2 Electrical load controlling device |
| 01/30/2007 | US7170767 System and method for regenerative PWM AC power conversion |
| 01/30/2007 | US7170255 Feedforward controller for synchronous reluctance machines |
| 01/25/2007 | DE102006031645A1 Drive, has gear with parameters that are stored in converter for controlling converter to reduce rotary moment of gear, and sensor such as torque sensor for determining angular position of initial stroke of teeth of gear |
| 01/24/2007 | CN1297063C Electric motor control device |
| 01/18/2007 | US20070013338 Overvoltage suppression technique for variable frequency drives operating reciprocating loads |
| 01/18/2007 | US20070013329 Method and circuit arrangement for the sensorless determination of load states of synchronous linear motors |
| 01/17/2007 | CN1897453A Method for improving permanent-magnetic linear motor motion precision |
| 01/17/2007 | CN1897385A Motor control apparatus |
| 01/16/2007 | US7164590 Power transfer system with reduced component ratings |
| 01/16/2007 | US7164243 System and method for establishing motor efficiency during balanced or unbalanced operating conditions |
| 01/11/2007 | US20070007920 Motor controller |
| 01/11/2007 | US20070007072 Controller for electric power steering device |
| 01/04/2007 | US20070001630 Electric motor movement controlling method, an electric motor movement controlling system and a compressor |
| 01/04/2007 | DE102006028907A1 Verfahren zur Kompensation von Zeitverzögerungen bei der Steuerung bzw. Regelung von Schwingungen A method for compensation of time delays in the control or regulation of vibrations |
| 01/03/2007 | CN1889359A High-voltage variable frequency speed regulating method and apparatus thereof based on alph-beta current component direct-filling |
| 01/03/2007 | CN1889358A Permasyn electric machine control system based on adaptive sliding moding structure |
| 01/02/2007 | US7157804 Electrical rotating machine control unit and power generation system |
| 12/28/2006 | US20060290338 Device for determining constant of rotating machine |
| 12/28/2006 | US20060290312 Motor control device |
| 12/27/2006 | CN1885709A Fan speed regulation system simultaneously possessing PWM and external control |
| 12/27/2006 | CN1885041A Apparatus for measuring motor rotation speed by rotor frequency method |
| 12/26/2006 | US7154239 Controller for a brushless direct current motor |
| 12/21/2006 | WO2005124976A3 Method for controlling an electric motor to reduce emi |
| 12/21/2006 | WO2005034329A3 Phase angle control for synchronous machine control |
| 12/20/2006 | CN2850138Y Control system for fan rotation speed of computer power |
| 12/20/2006 | CN1881780A Method for operating a rotating electrical machine and apparatus for carrying out the method |
| 12/14/2006 | WO2006131523A1 Method and device for controlling a brushless direct-current motor |
| 12/14/2006 | DE102005025383A1 Aktuator Actuator |
| 12/14/2006 | DE102005021921A1 Verfahren zur Verwendung einer elektrischen Maschine als Stellmotor A method for using an electrical machine as a servo motor |
| 12/13/2006 | EP1730837A1 Control device for roller shutter drive motor |
| 12/13/2006 | CN1879283A Space vector PWM modulator for permanent magnet motor drive |
| 12/13/2006 | CN1877981A Apparatus and method for controlling motor |
| 12/13/2006 | CN1877965A Inner feedback integrated type brushless alternating current machine |
| 12/06/2006 | EP1729408A1 Actuator and method of operating thereof |
| 12/06/2006 | CN2844992Y Rotor axial series torsional vibration active controlling and driving device based on rotary magnetic field |
| 12/06/2006 | CN1875540A Motor drive inverter control apparatus |
| 11/30/2006 | DE102006022615A1 Vorrichtung und Verfahren zum Betreiben eines elektrischen Stellglieds Apparatus and method for operating an electric actuator |
| 11/30/2006 | DE102004014667B4 Verfahren zur Drehmomentkalibrierung eines chirurgischen Antriebs A method for torque calibration of a surgical drive |
| 11/29/2006 | EP1485986B1 Closed-loop phase compensation controller |
| 11/29/2006 | CN1287379C Direct access storage device (DASD) with variable spindle rotation speed |
| 11/28/2006 | US7141946 Method and apparatus for providing optimal acceleration feedback |
| 11/23/2006 | WO2006125184A1 Variable-frequency drive with regeneration capability |
| 11/23/2006 | CA2608780A1 Variable-frequency drive with regeneration capability |
| 11/22/2006 | CN1868113A AC motor control method and control device |
| 11/22/2006 | CN1286264C Frequency converter and drive for electric motor |
| 11/22/2006 | CN1286261C Device and method for controlling supply of current and static capacitance to compressor |
| 11/21/2006 | US7139040 Method to correct non-periodic index event time-of-arrival data in a synchronization system |
| 11/16/2006 | DE102005020830A1 Verfahren zum Betreiben einer Elektrowerkzeugmaschine, Elektronikeinheit sowie Elektrowerkzeugmaschine Method for operating a power tool, electronics and power tool |
| 11/14/2006 | US7135830 System and method for identifying operational parameters of a motor |
| 11/08/2006 | EP1719631A1 Dynamic S curve stepper motor velocity profiles |
| 11/08/2006 | CN1860675A Motor operation control device |
| 10/31/2006 | US7129660 Motor-temperature estimation apparatus and motor control apparatus |
| 10/25/2006 | EP1715576A1 Method for estimating the sum of stator and rotor resistances |
| 10/25/2006 | EP1715563A1 The three-phase ac speed adjustable motor |
| 10/25/2006 | CN1853338A An electric motor movement controlling method, an electric motor movement controlling system and a compressor |
| 10/25/2006 | CN1853146A Method of controlling an electric machine and corresponding controlling device |
| 10/24/2006 | US7126307 Interface circuit for actuating an electrical device and circuit arrangement for actuating an electric motor therewith |
| 10/19/2006 | US20060232237 Method for adjusting parameters of an electric motor and variable speed drive using such a method |