| 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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| 08/15/2007 | CN2935627Y Electricity saving device of motor |
| 08/15/2007 | CN2935626Y Automatic speed control motor |
| 08/15/2007 | CN1332504C System and method for controlling a rotating electromagnetic machine |
| 08/09/2007 | US20070182360 Motor driving apparatus |
| 08/08/2007 | EP1816738A2 Offset PWM signals for multiphase motor |
| 08/08/2007 | CN1331306C Controller for rotating machine |
| 08/08/2007 | CN101015115A Motor controller |
| 08/08/2007 | CN101013877A Method for controlling slip/slip ratio of AC asynchronous motor and application thereof |
| 08/07/2007 | US7253583 Controller for synchronous machine |
| 08/02/2007 | WO2007086200A1 Motor drive device and control method thereof |
| 08/01/2007 | EP1813729A1 Rotation control device and construction machine |
| 08/01/2007 | CN2930096Y Intelligent AC motor current controller |
| 08/01/2007 | CN2930095Y Power saving controller for oil field oil pumping unit |
| 08/01/2007 | CN1330087C Damping control in a three-phase motor with a single current sensor |
| 07/25/2007 | EP1661236B1 Method and circuit arrangement for the sensorless detection of load states of synchronous linear motors |
| 07/25/2007 | CN101005265A Intelligent powersaving device for AC motor |
| 07/25/2007 | CN101005264A Intelligent fan rotating speed control method |
| 07/24/2007 | US7248016 Motor controller and steering device |
| 07/19/2007 | US20070168141 Method for measuring the operating state of a synchronous motor using composite power angle meter |
| 07/19/2007 | US20070164701 Three-phase ac speed adjustable motor |
| 07/19/2007 | US20070164698 Method and device for controlling motors |
| 07/19/2007 | DE112005001415T5 Verfahren und Vorrichtung zum automatischen Einstellen eines Vibrationsunterdrückungsfilters Method and apparatus for automatically adjusting a vibration suppressing filter |
| 07/18/2007 | CN101002376A Low loss propulsion system |
| 07/18/2007 | CN101001075A Torque control device and method of DC variable frequency compressor |
| 07/18/2007 | CN101001032A Apparatus for transferring power having a motor |
| 07/17/2007 | US7245105 Single-phase induction motor and method for reducing noise in the same |
| 07/12/2007 | DE102005046920B4 Antrieb mit einem Elektromotor und einer Motorelektronik Actuator with an electric motor and an engine electronics |
| 07/11/2007 | CN2922274Y Electric motor intelligent non-contact transformation control device |
| 07/11/2007 | CN1998130A Phase angle control for synchronous machine control |
| 07/11/2007 | CN1996532A Contact unit for the circuit transformation |
| 07/11/2007 | CN1326320C Apparatus for switching windings of AC three-phase motor |
| 07/10/2007 | US7242166 Electric machine |
| 07/10/2007 | US7242163 System and method for clamp current regulation in field-weakening operation of permanent magnet (PM) machines |
| 07/04/2007 | CN2919686Y Intelligent energy-saving controller of three-phase asynchronous motor |
| 07/04/2007 | CN1992508A 编码器 Encoder |
| 07/04/2007 | CN1992481A Magnetizing motor and magnetizing method thereof |
| 07/04/2007 | CN1324803C 或门电机控制系统 Or door motor control system |
| 07/04/2007 | CN1323920C Rareearth permanent-magnet self-synchronous gearless elevator driving control system |
| 06/28/2007 | WO2007072365A1 Adaptive drive system using current values for a personal care appliance |
| 06/28/2007 | DE19539915B4 Verfahren zur Überwachung wie Stillstands- und/oder Einrichtdrehzahlüberwachung eines Antriebs, insbesondere hochdynamischen Servoantriebs, sowie Lastrelais insbesondere zur Verwendung bei einem entsprechenden Verfahren Method for monitoring as downtime and / or Einrichtdrehzahlüberwachung a drive, especially highly dynamic servo drive and overload relays particularly for use in a corresponding method |
| 06/27/2007 | CN1988366A Control method and system for rolling iron core forming non-round winding rotary speed of power transmission and distribution transformer |
| 06/20/2007 | CN2914488Y Intelligent electricity saving machine of micro-electronic motor |
| 06/20/2007 | CN1983795A 车辆用操舵装置 The vehicle steering apparatus |
| 06/20/2007 | CN1983794A Self tuning method and apparatus for permanent magnet sensorless control |
| 06/20/2007 | CN1322668C Method and apparatus for maintaining force of a variable reluctance motor |
| 06/19/2007 | US7233124 Motor drive inverter control apparatus |
| 06/19/2007 | US7233119 Method and circuit arrangement for the sensorless determination of load states of synchronous linear motors |
| 06/13/2007 | EP1796263A1 Time constant automatic estimation method, time constant automatic estimation apparatus and servo motor control system |
| 06/13/2007 | CN2912111Y Automatic controller of keeping stator power factor as one |
| 06/13/2007 | CN1980047A Control device for driving motor |
| 06/13/2007 | CN1321494C Motor control device |
| 06/12/2007 | US7230403 System and method for elimination of DC offset feedback in AC drives |
| 06/12/2007 | US7230394 Apparatus and method for controlling motor in washing machine |
| 06/06/2007 | DE10019696B4 Schaltung zur Verringerung von Störstrahlung in Motorspeiseschaltungsanwendungen Circuit for reducing interference in motor supply circuit applications |
| 06/06/2007 | CN2909671Y Mixed pole type brushless double-feed AC dynamo |
| 06/06/2007 | CN1976215A Audible noise reduction for single current shunt platform |
| 06/06/2007 | CN1976214A Air conditioner AC machine driving method and circuit |
| 06/06/2007 | CN1320744C Motor driving apparatus |
| 06/05/2007 | US7227330 Overvoltage suppression technique for variable frequency drives operating reciprocating loads |
| 05/31/2007 | US20070120518 Electric motor controller for a domestic appliance |
| 05/31/2007 | DE19951981B4 Regelsystem für einen Induktionsmotor Control system for an induction motor |
| 05/30/2007 | EP1788911A2 Operating a three phase device using single phase power |
| 05/30/2007 | CN2907084Y Power-saving operation controller for induction AC motor |
| 05/30/2007 | CN1319262C Robust current loop controller used for servo system and control method therefor |
| 05/29/2007 | US7224141 Position controller of motor |
| 05/24/2007 | US20070118345 Method and system for programming a motor controller |
| 05/24/2007 | US20070118308 Motor parameter estimation method and apparatus |
| 05/24/2007 | US20070118307 Motor parameter estimation method and apparatus |
| 05/23/2007 | CN1969452A Automatic output power limiting electrical device |
| 05/23/2007 | CN1968005A Method to measure the angular speed of an induction motor |
| 05/23/2007 | CN1317821C Drive arrangement, especially for a lifting mechanism and/or a traveling drive |
| 05/22/2007 | US7221122 Inverter control device |
| 05/22/2007 | US7221121 Frequency converter for different mains voltages |
| 05/16/2007 | EP1786094A1 Method to measure the angular speed of an induction motor |
| 05/16/2007 | CN1316728C Rotary machine control |
| 05/16/2007 | CN1316707C Overload current protection device using magnetic impedance element |
| 05/15/2007 | US7218494 Overload current protection device using magnetic impedance element |
| 05/09/2007 | EP1782529A1 Automatic output power limiting electrical device |
| 05/09/2007 | CN1960162A Drive circuit of PWM motor |
| 05/08/2007 | US7215055 Vehicle |
| 05/02/2007 | EP1780884A2 Audible noise reduction for single current shunt platform |
| 05/02/2007 | EP1779351A1 Electric roller-shutter actuator comprising a control interface with electric break contacts |
| 05/02/2007 | CN1314196C Controlling method and apparatus of discontinuous power supply combined with star angle converting for motor of pumping unit |
| 05/02/2007 | CN1314195C AC motor three-phase current smoothing control device |
| 05/01/2007 | US7211985 Training device |
| 05/01/2007 | US7211981 Electric motor movement controlling method, an electric motor movement controlling system and a compressor |
| 04/26/2007 | WO2007047143A1 Ac motor controller |
| 04/26/2007 | US20070090785 Audible noise reduction for single current shunt platform |
| 04/26/2007 | US20070090783 Method for braking a synchronous machine |
| 04/26/2007 | DE19910755B4 Lineare Strommeßschaltung für Motorsteuerung Linear current sensing circuit for motor control |
| 04/26/2007 | DE102005050844A1 A method for eliminating the vibration of a three phase electric motor has a rectifier and frequency generator with control units to ground the common point of the motor windings |
| 04/26/2007 | CA2626044A1 Ac motor controller |
| 04/25/2007 | EP1516425B1 Brushless motor control utilizing independent phase parameters |
| 04/24/2007 | US7208911 Method for controlling a cycle-skipping control system including computer readable code and controller for performing such method |
| 04/24/2007 | US7208910 Method for modifying baseline circuit architecture for a cycle-skipping control system including computer readable code and controller for performing such method |
| 04/24/2007 | US7208907 System and method of restarting a switched reluctance motor after a rapid cycling of power |
| 04/24/2007 | US7208891 Variable speed drive for a chiller system |
| 04/19/2007 | WO2006131459A3 Method for controlling a reluctance motor |
| 04/19/2007 | DE102005046920A1 Drive unit comprises an electronic unit arranged close to an electric motor and connected to a supply line using a current limiter |
| 04/18/2007 | CN2891456Y Internal feeding brushless variable speed AC motor |