| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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| 09/03/1997 | EP0792537A1 Method and apparatus for control of a switched reluctance motor |
| 09/02/1997 | US5663624 Closed-loop method and apparatus for controlling acceleration and velocity of a stepper motor |
| 08/27/1997 | EP0791241A1 Method and apparatus to maximize the top speed of brushless dc motors |
| 08/26/1997 | US5661389 Compact circuit for controlling a floppy disk driver |
| 08/20/1997 | EP0790539A1 Method and device for controlling a monophased stepping motor |
| 08/19/1997 | US5659234 Vibration reduction for stepping motor by vector angle and vector length modulation |
| 08/12/1997 | US5656910 Driver circuit for a stepping motor |
| 08/06/1997 | EP0626110B1 Stepper motor drive circuit |
| 07/31/1997 | DE19602371A1 Rotation monitoring device for stepper-motor positioning of tools and workpieces |
| 07/22/1997 | US5650705 Apparatus and method for controlling currents in an inductor |
| 07/16/1997 | EP0526660B1 Apparatus for controlling load numerically |
| 07/15/1997 | US5648710 System for controlling drive of stepping motor |
| 07/10/1997 | WO1997024797A1 Digital frequency generator |
| 07/02/1997 | EP0782242A1 Multi-rotor electromechanical transducer and control method thereof |
| 06/25/1997 | EP0780965A1 Starting method and device for brushless synchronous motors |
| 06/25/1997 | CN1152732A Method and apparatus for detecting origin of pulse motor |
| 06/24/1997 | US5640943 Air flow rate control apparatus for internal combustion engine |
| 06/17/1997 | US5640075 Method for controlling a stepping motor |
| 06/04/1997 | EP0777314A2 Motor structure |
| 05/28/1997 | DE19543586A1 Radio alarm with analog time display and quartz control circuit |
| 05/22/1997 | DE19609803C1 Stepping frequency circuit of stepper-motor drive e.g. for office machines and printers |
| 05/13/1997 | US5630008 Control circuit for driving motor with reduced power consumption and disk unit having the control circuit |
| 05/07/1997 | DE19645558A1 Device for operating or controlling inductive load e.g. for two=phase stepper motor |
| 05/06/1997 | US5627443 Method of driving stepping motor |
| 04/30/1997 | DE19644508A1 Stepper motor null position detecting method |
| 04/30/1997 | DE19539753A1 Motor vehicle central locking door lock |
| 04/29/1997 | US5625270 Scanning monochromator with directly driven spectral-dispersion element |
| 04/29/1997 | US5625269 Stepping motor control system and recording apparatus using the same |
| 04/29/1997 | US5625268 Stepping motor drive unit |
| 04/23/1997 | EP0769845A1 Step motor driving method |
| 04/16/1997 | CN2252452Y Chopping constant-current type step-by-step motor drive circuit |
| 04/16/1997 | CN1034625C Voltage driving circuit |
| 04/10/1997 | WO1997013317A1 Device generating three-phase position detecting signal with two coils |
| 04/02/1997 | CN1146661A High-precision fine stepping method and control system for step motor |
| 03/27/1997 | WO1997011524A1 Method and apparatus for control of a switched reluctance motor |
| 03/27/1997 | WO1997011266A1 Method and device for controlling an actuator element |
| 03/27/1997 | DE19535419A1 Verfahren und Vorrichtung zur Ansteuerung eines Stellgliedes Method and apparatus for driving an actuator |
| 03/27/1997 | CA2205588A1 Method and apparatus for control of a switched reluctance motor |
| 03/26/1997 | EP0764780A2 Flow quantity valve controller and manufacturing method for flow quantity valve |
| 03/20/1997 | WO1997010642A1 Open-loop step motor control system |
| 03/19/1997 | EP0763884A1 Unipolar motor control device for detection of rotor locking |
| 03/12/1997 | EP0761475A1 Adaptable media motor feed system for printing mechanisms |
| 03/11/1997 | US5610492 Method and apparatus for induced pole stepper motor |
| 02/20/1997 | DE19543810C1 Control circuit for electromechanical positioning devices stepper motors e.g. for vehicle actuators |
| 02/11/1997 | US5602708 Process and device for electronically monitoring the overload on electric motor drives |
| 02/11/1997 | US5602449 Motor controlled surgical system and method having positional control |
| 02/04/1997 | US5600217 CMOS disk drive motor control circuit having back-EMF regulator circuitry |
| 01/29/1997 | EP0756175A1 Indicating instrument having stepping motor |
| 01/29/1997 | EP0641501B1 Variable reluctance drive system |
| 01/28/1997 | US5598078 Device for detecting step-out of a stepping motor |
| 01/22/1997 | CN1140927A Stepping motor driving method |
| 01/21/1997 | US5596257 Step motor controller |
| 01/14/1997 | CA2019377C Stepping motor driving apparatus |
| 01/08/1997 | EP0752755A1 Stepping motor driving method |
| 01/07/1997 | US5592261 Image forming apparatus having a stepping motor for rotating a photosensitive drum |
| 01/07/1997 | US5592057 Step motor and servo motor indexer |
| 01/03/1997 | WO1997000554A1 Method of actuating a step motor and suitable device |
| 12/31/1996 | US5590237 Apparatus and method for controlling the rotation speed of electric motors |
| 12/31/1996 | US5589746 Brushless motor speed control arrangement having derived common mode supply signal component |
| 12/19/1996 | DE19521445A1 Verfahren zur Ansteuerung eines Schrittmotors und Vorrichtung dazu Method for actuating a stepping motor and to apparatus |
| 12/18/1996 | CN1138268A Portable video camera |
| 12/11/1996 | EP0746769A1 Automated continuous and random access analytical system and components thereof |
| 12/11/1996 | EP0663081B1 Process for controlling a step motor |
| 12/04/1996 | EP0746090A2 Method for rotor position detection for a revolving cylinder motor or a linear motor |
| 11/27/1996 | EP0744825A1 Motor driving device |
| 11/21/1996 | DE19518597A1 Cutting machine for food produce loaves |
| 11/21/1996 | DE19518595A1 Produce cutting machine |
| 11/12/1996 | US5574351 Method and apparatus for control of stepper motors |
| 11/05/1996 | US5572270 Optical apparatus having a motor control device |
| 11/05/1996 | US5572105 Stepping motor control method including varying the number of split sections in one step drive period of a stepping motor |
| 10/30/1996 | EP0739501A1 Correction process between the electric phase angle and mechanical output angle of a step motor |
| 10/23/1996 | CN1134065A Control method of stepper-motor |
| 10/17/1996 | WO1996032067A1 Motor controlled surgical system and method having positional control |
| 10/17/1996 | CA2216209A1 Motor controlled surgical system and method having positional control |
| 10/15/1996 | US5566138 Counter circuit for controlling the operation of a quartz clock with "one touch" or "fast" electrical resetting of the time |
| 10/09/1996 | EP0736964A1 Basic device system for a stepping motor having improved reset means |
| 10/09/1996 | EP0736963A1 Process and apparatus for controlling a stepping motor |
| 10/09/1996 | EP0736961A1 Angular control device for a stepping motor |
| 10/09/1996 | CN2237300Y Stepper motor driver |
| 10/08/1996 | US5563486 For use in a vehicle |
| 10/08/1996 | US5563481 Brushless motor |
| 10/02/1996 | EP0735744A1 Portable video camera having power saving control of stepping motors |
| 10/02/1996 | EP0735667A2 Stepping motor device for driving a servo-control element |
| 09/25/1996 | EP0733803A2 Pump motor and motor control |
| 09/25/1996 | EP0660972B1 Process and device for electronically monitoring the overload on electric motor drives |
| 09/25/1996 | CN2236193Y Step-by-step electric motor frequency-variable controllor |
| 09/23/1996 | CA2172453A1 Pump motor and motor control |
| 09/19/1996 | DE19610059A1 Operating method for analogue indicator meter |
| 09/19/1996 | DE19608480A1 Pointer type speedometer e.g. for motor vehicle |
| 08/27/1996 | US5550447 Pulse generating system responding to instruction pulses for generating driving pulses for diving motor |
| 08/22/1996 | DE19605095A1 Control of stepper motor e.g. for motor vehicle |
| 08/21/1996 | EP0565700B1 Specimen processing and analyzing systems with variable zener-diode flyback stepper motor control |
| 08/13/1996 | US5545963 Seek method and apparatus |
| 07/30/1996 | US5541487 Driving circuit for stepping motor |
| 07/25/1996 | DE19501652A1 Frequency ramp generating method |
| 07/18/1996 | DE19600687A1 Needle indicator device for e.g. vehicle speed indicator |
| 07/10/1996 | EP0720563A1 Ribbon sensing device for bag tyer |
| 06/27/1996 | DE4446492A1 Stepping motor group control circuit |
| 06/25/1996 | US5530332 Stepper motor drive circuit |
| 06/19/1996 | EP0716730A1 Method of reducing the magnitude of an uncontrolled instrument-pointer movement |