| 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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| 10/23/2001 | CA2060225C Velocity pi regulator with negative feedforward to control response of command inputs independent of torque disturbances |
| 10/18/2001 | US20010030999 Digital control loop |
| 10/17/2001 | EP1146633A1 Electromechanical control device for time delayed synchronous motors |
| 10/17/2001 | EP1146632A1 Electromechanical control device for synchronous motors |
| 10/17/2001 | EP0727059B1 Drive and x-ray device comprising such a drive |
| 10/04/2001 | US20010026180 Rotational pulse generating circuit for motors |
| 10/04/2001 | DE10019696A1 Verfahren und Schaltung zur Verringerung von Störstrahlung in Motorspeiseschaltungsanwendungen Method and circuit for reducing interference in motor supply circuit applications |
| 09/27/2001 | US20010024101 Motor control apparatus and motor control method |
| 09/27/2001 | DE10011518A1 Converter motor for variable speed drive, has motor and converter arranged as physical unit, in which converter is self-commutating direct converter. |
| 09/27/2001 | DE10011295A1 Selective elimination method for removing parasitic zero frequency values in voltage correction range of polyphase machines |
| 09/25/2001 | US6294889 Process and a control device for a motor output suitable for being controlled through a communication bus |
| 09/20/2001 | US20010022507 Speed control |
| 09/19/2001 | EP1134887A1 Frequency domain harmonic analysis methods and apparatus for electric machines |
| 09/13/2001 | US20010021116 Converter motor with an energy recovery capability |
| 09/13/2001 | DE10109656A1 Rotation pulse generator circuit for motors has variable corner frequency filter for eliminating noise, pulse shaper, clock signal generator, clock starting frequency correction circuit |
| 09/13/2001 | DE10061291A1 Verfahren und Vorrichtung zum indirekten Messen des Schlupfs eines Induktionsmotors zum Einrichten einer Drehzahlregelung Method and apparatus for indirectly measuring the slip of an induction motor to establish a speed control |
| 09/12/2001 | CN1071065C Mechanical vibration detector and vibration damping controller |
| 09/11/2001 | USRE37360 Electronic motor controls, laundry machines including such controls and/or methods of operating such controls |
| 09/05/2001 | EP1130759A1 Motor controller |
| 09/05/2001 | CN1311149A Elevator control device |
| 08/30/2001 | US20010017527 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating |
| 08/30/2001 | US20010017237 Elevator control apparatus |
| 08/29/2001 | EP1127278A1 Device and method for generating a partially synthesized signal with very good dynamic quality for the acceleration of a rotor in an electrical drive mechanism |
| 08/21/2001 | US6278255 Apparatus and method for eliminating variable offset values of current detecting signals |
| 08/01/2001 | EP0714567B1 Circuit for speed control for a one-phase or three-phase motor |
| 07/26/2001 | WO2001054265A1 Speed control for induction motor with variable voltage-frequency ratio |
| 07/26/2001 | DE10061293A1 Method and device for improving the efficiency of an induction motor stimulated by three-phase alternating current power uses measured direct current to determine estimated phase voltage |
| 07/17/2001 | US6262904 Method and device for controlling a static converter powering an electrical source |
| 07/12/2001 | WO2001050108A1 Device for measuring rotor imbalance |
| 07/12/2001 | DE10000235A1 Vorrichtung zum Messen einer Rotorunwucht An apparatus for measuring a rotor unbalance |
| 07/11/2001 | EP1114989A2 Device for measuring an unbalance of a rotor |
| 07/10/2001 | US6259219 Multiple sensor speed controller for a driven member |
| 07/03/2001 | US6255797 AC motor with reactor interposed between AC motor and power source |
| 06/28/2001 | WO2001047099A1 Method and system for programming a motor controller |
| 06/28/2001 | WO2001047098A1 Energy conserving motor controller |
| 06/27/2001 | EP1110744A1 Motor control apparatus and motor control method |
| 06/26/2001 | US6252367 Servo controller |
| 06/19/2001 | US6249103 Electric motor and driver system |
| 06/13/2001 | CN1299183A Load side starting method electric generator driven by engine, and engine driven electric generator |
| 06/13/2001 | CA2327582A1 Method and apparatus for indirectly measuring induction motor slip to establish speed control |
| 06/07/2001 | DE19952389A1 Determining parameters of electrically powered motor systems, involves setting drive current values via regulator for constant predefined force on rotor element, and measuring drive current and force |
| 05/23/2001 | CN1296333A Apparatus and method for controlling the supplied current and static capacitance to compressor |
| 05/23/2001 | CN1296095A 电动洗衣机 Electric washing machine |
| 05/23/2001 | CN1066299C Method and apparatus for direct torque control of induction machine |
| 05/17/2001 | WO2001035521A1 Device and method for controlling supply of current and static capacitance to compressor |
| 05/17/2001 | WO2001035520A1 Device and method for controlling supply of current and static capacitance to compressor |
| 05/17/2001 | US20010001253 Removable type magnetic recording/reproducing device |
| 05/16/2001 | EP1100190A2 Device and method for controlling the current supply and the static capacitance of a compressor |
| 05/09/2001 | EP1098430A2 Method and apparatus for starting a motor supplied by an engine-driven generator |
| 05/08/2001 | US6229274 Statistical phase detection and go start-up algorithm |
| 05/08/2001 | US6229234 Rotating electric motor system capable of vibrating and method for operating a rotating electric motor capable of vibrating |
| 04/24/2001 | US6222331 Dynamo-electric machines and control and operating system for the same |
| 04/19/2001 | WO2001027637A1 A device and a method for estimating the speed of a slip ring asynchronous machine |
| 04/10/2001 | US6215435 Linear current sensing circuit for motor controller |
| 04/10/2001 | US6215265 System and method for controlling activating actuator motors for various mechanisms, such as roller shutters, awnings and movies screens |
| 03/28/2001 | EP1087515A2 Motor control circuit |
| 03/20/2001 | US6205405 Device for determining the resistive torque of a rotating item of equipment, system for monitoring the operation of an electric motor and system for regulating the operating parameters of a centrifuge incorporating such a device |
| 03/13/2001 | US6201657 Removable type magnetic recording/reproducing device |
| 03/06/2001 | US6198248 Method of controlling a rotary electrical machine, a servo-control system for implementing the method, and a rotary machine fitted with such a system |
| 02/21/2001 | EP1076926A1 Device for regulating rotational speed |
| 02/15/2001 | DE19936228A1 Steuerverfahren zum Erzeugen eines Spannungszeigers und Steueranordnung für einen Umrichter A control method for generating a voltage vector and control arrangement for an inverter |
| 02/07/2001 | EP1075078A2 Control method for generation of voltage vector and control system for an inverter |
| 02/07/2001 | CN1061799C Voltage type inverter and control method thereof |
| 01/30/2001 | US6181582 Method and circuit arrangement for generating a representation of the supply voltage in a frequency converter |
| 01/24/2001 | EP1070384A1 Method and device for controlling a static converter powering an electrical source |
| 01/23/2001 | US6177774 Motor controller based on PWM system |
| 01/10/2001 | CN1279841A Method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine with permanent magnet rotor |
| 01/03/2001 | EP1064716A1 Electric motor monitoring circuit |
| 01/02/2001 | CA2113579C Electric machine system |
| 01/02/2001 | CA2062319C Synchronous motor with permanent magnets |
| 12/26/2000 | US6166513 Four-quadrant AC-AC drive and method |
| 12/19/2000 | US6163129 Method of controlling the starting, stopping and speed of an AC induction motor |
| 12/12/2000 | US6160365 Interface module for a motor control system |
| 12/05/2000 | US6157156 Motor controller |
| 11/30/2000 | DE19933069A1 Three phase input-feedback unit for driving variable speed three-phase machines has four quadrant control element mains converter connected to two phases of three-phase mains |
| 11/29/2000 | EP1056191A2 Inverter device |
| 11/28/2000 | CA2310212A1 Inverter device |
| 11/22/2000 | EP1054218A1 Two-way pump for gas boiler, control circuit thereof, and control method thereof |
| 11/08/2000 | EP1050611A2 Method and device for automatically adjusting the asynchronous motor for actuation of the weft winding arm in weft feeders for textile machines |
| 11/08/2000 | CN1058358C Motor control apparatus |
| 10/19/2000 | WO2000062412A1 Controller for electric motor |
| 10/18/2000 | EP1045510A2 Starter circuit for motors, particularly for refrigerator compressors |
| 10/10/2000 | CA2156903C A method for determining a stator flux estimate for an asynchronous machine |
| 10/04/2000 | EP1040553A2 A method and device for controlling the magnetic flux in a rotating high voltage electric alternating current machine with permanent magnet rotor |
| 10/03/2000 | US6127793 Method and circuit arrangement for detecting optimal controller parameters for speed control |
| 09/20/2000 | EP1037376A2 Polyphase AC machine controller |
| 09/20/2000 | EP1037375A2 Data interface module for motor control system |
| 09/20/2000 | EP1037374A2 Interface module for motor control system |
| 09/20/2000 | EP1037373A2 Command module for motor control system |
| 09/20/2000 | EP1037372A2 Method of controlling the starting, stopping and speed of an AC induction motor |
| 09/20/2000 | CN1267129A Controller for multiphase AC motors |
| 09/20/2000 | CN1267128A Command module of motor control system |
| 09/20/2000 | CN1267127A Method for controlling start, stop and speed of AC induction motor |
| 09/20/2000 | CN1267126A Interface module for electric machine control system |
| 09/20/2000 | CN1267125A Data interface module for electric machine control system |
| 09/19/2000 | US6121747 Electric motor controller |
| 09/19/2000 | US6119446 Method for controlling gas turbine using fuzzy logic |
| 09/13/2000 | EP1035638A2 Method and circuit arrangement for imaging the network voltage near power supply devices capable of feeding back energy |
| 09/12/2000 | US6118247 Drive control apparatus for electric synchronous machine having field winding |
| 09/08/2000 | WO2000029853A8 Methods and apparatus for a real-time motor controller |