| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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| 08/07/2002 | CN1088834C Device for driving stepper motor type measuring instrument |
| 08/07/2002 | CN1088832C Device for driving stepping motor-type instrument |
| 08/06/2002 | US6429619 Generator comprising two pairs of differential outputs |
| 08/01/2002 | US20020101215 Current magnitude variation correction for open loop stepper motor driver circuit |
| 07/31/2002 | EP1227573A2 Optimized flap actuator control of a vehicle air conditioner |
| 07/31/2002 | EP1226989A1 Actuator identification process in a vehicle air conditioning unit |
| 07/25/2002 | US20020097017 Optimized control of flap actuator of a motor-vehicle air-conditioning installation |
| 07/25/2002 | US20020096573 Method of identifying actuators in a motor-vehicle air-conditioning installation |
| 07/24/2002 | EP1224728A1 Method and apparatus for driving step motors without overshoot |
| 07/18/2002 | WO2002056455A1 Phase commutation method of four-phase step motor and a device for its realization |
| 07/18/2002 | WO2002056454A1 Phase commutation method of three-phase step motor and a device for its realization |
| 07/18/2002 | WO2002056453A1 Phase commutation method of two-phase step motor and a device for its realization |
| 07/17/2002 | CN2501251Y Driving power for stepping motor |
| 07/03/2002 | EP1220429A2 Stepping motor, stepping motor device and driving method thereof |
| 06/27/2002 | WO2002050991A1 Method for adjusting a part |
| 06/27/2002 | US20020079769 Stepping motor, stepping motor device and driving method thereof |
| 06/27/2002 | DE10063441A1 Verfahren zum Verstellen eines Teils A method for adjusting a portion |
| 06/26/2002 | EP1217722A1 Method and device for controlling a three phase stepping motor |
| 06/26/2002 | CN2497485Y Step-by-step motor driving device with dynamic torque control |
| 06/20/2002 | DE10062918A1 Busgesteuerter Stellantrieb Busgesteuerter actuator |
| 06/19/2002 | EP1215811A2 Method and device for monitoring of stepper motors |
| 06/19/2002 | EP1215061A2 Bus commanded actuator |
| 06/18/2002 | US6407527 Motor drive control apparatus |
| 06/13/2002 | DE10061787A1 Detection of voltage supply errors to a stepper motor by use of simple circuit addition to the stepper motor controller circuitry that compares supply voltages with threshold vales |
| 06/06/2002 | US20020067150 Stepping motor controlling apparatus and method, and image reading apparatus and method |
| 06/06/2002 | US20020067148 Electric motor drive and process for operating an electronically commutated electric motor |
| 06/06/2002 | DE10147785A1 Treiber für Elektromotor Drivers for electric motor |
| 05/30/2002 | WO2002003700A3 Integrated enclosure and controller for video surveillance camera |
| 05/21/2002 | US6392377 Motor control apparatus and motor control method |
| 05/21/2002 | CA2351201A1 An improved motor driver circuit |
| 05/16/2002 | DE10135417A1 Meßgerät mit einer Einstellfunktion für eine Zeiger-Nullstellung Meter with a setting function for a pointer-zero |
| 05/16/2002 | DE10066020A1 Verfahren zur schrittgenauen Positionierung von Zustellachsen oder Hilfsachsen einer bahnverarbeitenden Maschine Step process for accurate positioning feed axes or auxiliary axes of a web-processing machine |
| 05/14/2002 | US6388414 Step motor driving apparatus |
| 05/07/2002 | US6384566 Motor combination system and method for operating as an induction motor or a stepping motor |
| 05/07/2002 | US6384563 Method and apparatus for load torque detection and drive current optimization |
| 05/07/2002 | US6382194 Malfunction-detecting device for EGR stepping motor |
| 05/02/2002 | WO2002035534A2 Drive device |
| 05/02/2002 | US20020050800 Sensorless motor driving apparatus |
| 04/30/2002 | US6380705 Chopping energization control device |
| 04/25/2002 | US20020048231 Drive device |
| 04/25/2002 | US20020047765 Stepping motor and driving apparatus |
| 04/25/2002 | US20020047415 Motor device |
| 04/25/2002 | US20020047336 Stepping-motor driving device and lens driving device using the same |
| 04/17/2002 | EP1198060A2 Circuit for driving stepping motor |
| 04/16/2002 | US6373209 Stepping motor with an electrical activation circuit and arrangement with a stepping motor |
| 04/11/2002 | US20020041170 Circuit for driving stepping motor |
| 04/10/2002 | EP1195610A1 Apparatus and method for initializing stepper motor |
| 04/10/2002 | EP1194999A1 Method for setting a polyphase electric stepper motor |
| 04/10/2002 | CN1344060A Induction motor and step motor combined system and its operating method |
| 04/10/2002 | CN1343984A Integrated circuit for controlling soft disk driver |
| 04/10/2002 | CN1343981A Seeking for pattern forming circuit |
| 04/04/2002 | US20020039012 Control method for stepping motor, control device for stepping motor, motor driver for stepping motor |
| 04/04/2002 | US20020039011 Apparatus and method for initializing stepper motor |
| 03/27/2002 | EP0862811B1 Open-loop step motor control system |
| 03/26/2002 | US6362929 Method and apparatus for retracting a transducer head from a recording medium in a disk drive storage device |
| 03/21/2002 | DE10041606A1 Elektromotorischer Antrieb und Verfahren zum Betreiben eines elektronisch kommutierten Elektromotors Electric motor drive and method for operating an electronically commutated electric motor |
| 03/20/2002 | CN1340908A Control method of step motor |
| 03/14/2002 | WO2002021679A1 A device for program control of m-phase step motors |
| 03/14/2002 | WO2002021678A1 A device for programmed control of three-phase and four-phase step motors |
| 03/14/2002 | WO2002021677A1 A device for multiregime control of three-phase and four-phase step motors |
| 03/14/2002 | US20020030461 Determination of maximum travel of linear actuator |
| 03/14/2002 | US20020030460 Stepper motor controlling apparatus |
| 03/13/2002 | EP1187130A2 Seek pattern formation circuit |
| 03/07/2002 | US20020027739 Seek pattern formation circuit |
| 03/07/2002 | US20020027737 Control integrated circuit for floppy disk drive |
| 02/28/2002 | US20020024315 Stepping motor controller |
| 02/27/2002 | EP1182772A2 Control method and device for stepping motor and motor driver for stepping motor |
| 02/27/2002 | EP1182770A2 Electromotive drive and method for operating of an electronic commutated electric motor |
| 02/27/2002 | CN1080061C Portable video camera |
| 02/21/2002 | WO2002015381A1 Method and apparatus for controlling acceleration and velocity of a stepper motor |
| 02/14/2002 | US20020017884 Motor driver |
| 02/07/2002 | US20020015254 Motor driving device and disk device |
| 02/07/2002 | US20020014104 Meter having pointer-zero-position adjusting function |
| 02/07/2002 | DE10037334A1 Method for controlling a stepper motor e.g. for butterfly valves, involves detecting reference position by Hall sensor |
| 02/06/2002 | EP1178599A1 Open-loop step motor control system |
| 02/06/2002 | EP1178379A1 Method and device for detecting a step motor locking |
| 02/06/2002 | CN1334642A Device for driving electric machine without sensor |
| 01/31/2002 | US20020012549 Image forming apparatus with controlled image carrier rotation driving based on previous rotation state |
| 01/31/2002 | US20020011816 Motor driving control apparatus |
| 01/24/2002 | WO2002007301A1 Loss of step detection by means of frequency spectrum analysis |
| 01/24/2002 | US20020008491 Drive control apparatus for stepping motor |
| 01/24/2002 | US20020008490 Open-loop step motor control system |
| 01/24/2002 | DE10034110A1 Verfahren und Schaltungsanordnung zur Schrittverlusterkennung bei Schrittantrieben Method and circuit for step loss detection for stepper drives |
| 01/23/2002 | EP1174999A2 Sensorless motor driving apparatus |
| 01/16/2002 | EP1171949A1 Method for accelerating a control movement in a positioner system with step motors |
| 01/15/2002 | US6339306 Control device for stepper motor, control method for the same, and timing device |
| 01/10/2002 | WO2002003700A2 Integrated enclosure and controller for video surveillance camera |
| 01/09/2002 | EP1169774A1 Method for effecting the synchronous control of several stepping motors |
| 01/02/2002 | EP0934624B1 Stepping motor control, and operating mode of such motors |
| 01/02/2002 | CN2469606Y Low-speed large-moment motor |
| 01/02/2002 | CN1077348C Electric motor with an iron care |
| 01/01/2002 | US6335603 Motor control circuit and control system using the same |
| 12/13/2001 | DE10061095A1 Fehlfunktions-Erfassungsvorrichtung für einen EGR Schrittmotor Malfunction detecting device for an EGR stepper motor |
| 12/11/2001 | US6328692 Device for controlling an amount of light of a lighting unit for an endoscope |
| 12/06/2001 | US20010047799 Malfunction-detecting device for EGR stepping motor |
| 12/05/2001 | EP0863382B1 Device for driving stepping motor-type instrument |
| 12/05/2001 | EP0832514B1 Method of actuating a step motor |
| 12/05/2001 | CN2464015Y Step-up stepper motor driving device |
| 12/04/2001 | US6327177 Method for controlling a stepping motor and device for implementing such method |
| 11/27/2001 | US6323617 Stepping motor drive control circuit |