| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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| 08/28/1985 | EP0152427A1 Method for driving a stepper motor |
| 08/27/1985 | CA1192606A1 Method of damping a stepping motor |
| 08/21/1985 | EP0152071A2 Data transfer apparatus with a disklike record medium, and a method of operation therefor |
| 08/14/1985 | EP0151296A2 Control circuit for a stepper motor |
| 08/13/1985 | US4535279 Impulse motor structure, drive system and control circuit |
| 08/06/1985 | US4533861 Stepping motor drive circuit |
| 07/30/1985 | CA1191262A1 Electronically controlled postage machines and postage meters |
| 07/16/1985 | US4529923 Circuit for driving a stepping motor |
| 07/10/1985 | EP0147993A2 Disk unit |
| 07/09/1985 | US4528491 Pulse motor control apparatus |
| 07/09/1985 | CA1190278A1 Drive circuit for step motor |
| 07/02/1985 | US4526475 Analog display electronic timepiece with multi-speed hand movement |
| 06/19/1985 | EP0145198A1 Digital motor control method and means |
| 06/19/1985 | EP0144843A2 Control circuit arrangement for stepping motors |
| 06/18/1985 | CA1189185A1 Method and apparatus for controlling a stepper motor |
| 06/18/1985 | CA1188945A1 Microtome having a forward-feed control system for the specimen arm and/or the knife |
| 06/11/1985 | US4523224 Color filter wheel synchronizer |
| 06/11/1985 | US4523138 Drive control method for stepping motors |
| 06/11/1985 | US4522507 Step motor control mechanism for electronic timepiece |
| 06/05/1985 | EP0143241A1 Method and apparatus for controlling a stepper motor |
| 05/29/1985 | EP0143029A2 Stepping motor of the hybrid multiphase-type and its control device |
| 05/29/1985 | EP0142837A2 Collectorless polyphase DC motor |
| 05/28/1985 | US4520302 Stepping motors and drive circuits therefor |
| 05/28/1985 | US4519328 Electronic sewing machine with control detecting device |
| 05/22/1985 | EP0142465A2 Process for optimizing the couple of a polyphase motor, in particular of the stepping kind, and application of this process |
| 05/21/1985 | US4518907 Digital motor control method and means |
| 05/21/1985 | US4518906 Driving device of stepping motor |
| 05/21/1985 | US4518904 Stepper motor control for data disk system |
| 05/21/1985 | US4518900 Pulse motor driving apparatus |
| 05/15/1985 | EP0141243A1 Method and apparatus for normalizing the speed of an element |
| 05/14/1985 | US4517503 Method and apparatus for normalizing the speed of an element positionable by a servomechanism |
| 05/08/1985 | EP0140161A1 Load angle-dependent current control for a stepping motor |
| 05/08/1985 | EP0140160A1 Load angle dependent step cycle control for stepping motors |
| 05/08/1985 | EP0140159A1 Detection method for the static and dynamic load angle of a stepping motor |
| 05/08/1985 | EP0140089A1 Process for feeding a stepping motor |
| 05/07/1985 | US4516064 Stepper motor control device |
| 05/02/1985 | EP0139225A1 Integrable current-limiting circuit |
| 04/30/1985 | US4514676 Method and device for controlling a bidirectional stepping motor |
| 04/30/1985 | US4514675 Electronic damper for pulse motor |
| 04/30/1985 | US4514673 Stepper motor controller |
| 04/24/1985 | EP0138000A1 Multi-phase electric machine |
| 04/23/1985 | US4513236 Control method for stepping motor |
| 04/17/1985 | EP0137093A2 Method of measuring the voltage induced in the coil of a stepping motor by the rotation of its rotor |
| 04/16/1985 | US4511833 Stepping motor driving circuit |
| 04/16/1985 | US4511832 Stepper motor door control apparatus and method |
| 04/16/1985 | US4511809 Switch circuit having improved switching characteristics |
| 04/09/1985 | US4510429 Stepper motor damping circuit and a method therefor |
| 04/09/1985 | US4510266 Stepping motor controller |
| 04/03/1985 | EP0135772A2 Operation control apparatus for robots |
| 04/03/1985 | EP0135503A1 Switch circuit having improved switching characteristics |
| 03/27/1985 | EP0135128A2 Stepper motor damping circuit and a method therefor |
| 03/27/1985 | EP0135104A1 Method and device for the control of a stepping motor |
| 03/26/1985 | US4507599 Method and device for controlling a stepping motor |
| 03/19/1985 | US4506207 Step motor driving circuit |
| 03/19/1985 | US4506206 Method of and circuit arrangement for controlling the torque of a stepping motor |
| 03/19/1985 | US4506201 Microprocessor controlled pulse motor |
| 02/14/1985 | WO1985000708A1 Method for driving a stepper motor |
| 01/29/1985 | US4496892 Stepper motor controller |
| 01/29/1985 | US4496891 Stepping motor control apparatus |
| 01/29/1985 | US4496886 Three state driver for inductive loads |
| 01/23/1985 | EP0131772A1 Circuit for detecting the failure of a step motor to respond to energization commands |
| 01/23/1985 | EP0131760A1 Control apparatus for two bidirectional step motors |
| 01/22/1985 | US4495455 Multi-phase stepping motor controller |
| 01/22/1985 | CA1181477A1 Stepper motor damping circuit |
| 01/16/1985 | EP0131093A2 Damped stepping motor for driving a measuring device, especially a drum-type counting mechanism having a control circuit arrangement |
| 01/16/1985 | EP0131087A2 Sewing machine with a step motor-driven transporting device |
| 01/08/1985 | US4492910 For controlling/regulating rotational speed of a motor |
| 01/08/1985 | US4492909 Device for controlling the drive of a stepping motor, to adjust the lateral stitch bight and/or the feed length of a sewing machine |
| 01/01/1985 | US4491424 Electronic analog timepiece with rotation detection circuit |
| 12/27/1984 | EP0129377A2 Stepping motor control circuit |
| 12/27/1984 | EP0129327A2 Timing signal generator |
| 12/25/1984 | US4490665 Method for driving a stepper motor |
| 12/25/1984 | US4490664 Step motor exciting apparatus |
| 12/25/1984 | US4490663 Device for driving a stepping motor |
| 12/25/1984 | US4490662 Positioning method and apparatus therefor |
| 12/19/1984 | EP0128865A1 Method to improve dumping during the stoppage of a polyphase motor, particularly a step motor, and apparatus for carrying out the method |
| 12/18/1984 | US4489260 Method of driving a stepping motor and a drive circuit thereof |
| 12/18/1984 | US4489259 Minishing the tracking overshoots in an open loop disk device |
| 12/05/1984 | EP0127346A1 Peristaltic pumps |
| 12/04/1984 | US4486696 Stepping motor driving circuit |
| 11/20/1984 | US4484124 Method of and apparatus for damping of stepper motor using non-active windings |
| 11/20/1984 | US4484123 Method and apparatus for controlling and regulating a motor with a permanent magnetic rotor |
| 11/13/1984 | US4482851 Control circuit for stepping motor |
| 11/07/1984 | EP0123849A1 Disk storage file with a four phase, single phase drive stepping motor |
| 11/07/1984 | EP0123807A2 Driving and detection of back EMF in permanent magnet step motors |
| 11/06/1984 | US4481454 Method of driving a stepping motor |
| 11/06/1984 | US4481453 For reducing angular position error in microstepping motor movement |
| 11/06/1984 | US4480938 Printer escapement servomotor drive with a minimum power supply |
| 10/30/1984 | US4480218 Direct detection of back EMF in permanent magnet step motors |
| 10/30/1984 | US4479723 Analog electronic timepiece drive circuitry for energizing stepping motor drive coil in full and intermediate excitation states, and method therefor |
| 10/23/1984 | CA1176698A1 Microprocessor controlled micro-stepping chart drive |
| 10/16/1984 | US4477758 Stepping motor overcurrent detection and protection device |
| 10/16/1984 | US4477756 Stepping motor exciting system |
| 10/09/1984 | US4476421 Stepper motor exciting circuit |
| 10/02/1984 | CA1175376A1 Apparatus for positioning a typing disk in a printing device |
| 09/19/1984 | EP0119097A1 Stepping motors and drive circuits therefor |
| 09/11/1984 | US4471284 Reversible stepping motor |
| 09/11/1984 | US4471283 Average current regulation for stepper motors |
| 09/11/1984 | US4471282 Step motor excitation system |
| 09/11/1984 | CA1174060A1 Method for slaving a stepping motor and arrangement for practising the method |