Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
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01/05/1988 | US4717866 Stepping motor excitation sequences |
12/29/1987 | US4715725 Step motor control mechanism for electronic timepiece |
12/23/1987 | EP0249995A1 Head positioning system for floppy disk drives |
12/22/1987 | US4714867 Method and apparatus for controlling a stepper motor with a programmable parabolic velocity profile |
12/22/1987 | US4714849 Linear stepping motor |
12/22/1987 | US4714361 Stepper motor homing method and system |
12/02/1987 | EP0247338A2 Mechanism for positioning an output member |
12/01/1987 | US4710691 Process and apparatus for characterizing and controlling a synchronous motor in microstepper mode |
12/01/1987 | US4710690 Closed-loop control system for a stepping motor |
11/24/1987 | US4709199 Velocity feedback control of step motors |
11/17/1987 | US4707649 Motor controlling system |
11/17/1987 | US4706456 Method and apparatus for controlling hydraulic systems |
11/10/1987 | US4706008 Self-adjusting homing for a stepping motor |
11/05/1987 | DE3614650A1 Stepping motor control |
11/04/1987 | EP0244150A2 Stepping motor excitation sequences |
11/03/1987 | US4704698 Method for the synchronization of a moveable material web and an optical deflection path |
10/28/1987 | EP0243232A1 Device for driving a mobile |
10/28/1987 | EP0242673A2 Microstepping motor harmonic suppression |
10/27/1987 | US4703244 Pulse motor control apparatus |
10/27/1987 | US4703243 Stepping motor harmonic suppression |
10/27/1987 | US4702613 Electronic timepiece driven by a plurality of stepping motors and powered by a solar cell |
10/22/1987 | DE3704765A1 Torque control for stepping motors |
10/21/1987 | EP0242344A1 Method and apparatus for controlling a motor |
10/21/1987 | EP0242039A2 Adaptive controller for a motor vehicle engine throttle operator |
10/20/1987 | US4701687 Controller for energization of a stepper motor |
10/13/1987 | US4700120 Control for a stepper motor or other synchronous motor |
09/29/1987 | US4697129 Stepping motor drive system and method capable of stopping the rotor in a required angular position |
09/24/1987 | WO1987005755A1 Device for detecting the rotational position of rotor of motor |
09/23/1987 | EP0237778A2 Pulse motor and driving method thereof |
09/16/1987 | EP0237328A2 Stepper motor homing method and system |
09/08/1987 | US4692679 Pulse motor |
09/08/1987 | US4692674 Brushless DC motor control system responsive to control signals generated by a computer or the like |
09/02/1987 | EP0234614A1 Device for controlling a circuit through an impedance |
09/02/1987 | EP0234264A1 Control circuit for an electric step-motor |
09/01/1987 | US4691154 Stepping motor control system |
09/01/1987 | US4691153 Method of controlling positioning of rotor of stepping motor |
09/01/1987 | CA1226354A1 Stepper motor door control apparatus and method |
08/25/1987 | US4689541 Method and apparatus for controlling multiple motors |
08/18/1987 | US4687981 Stepping motor |
08/04/1987 | US4684866 Adaptive controller for a motor vehicle engine throttle operator |
08/04/1987 | US4684865 Method and device for controlling the acceleration of an electric stepping motor |
08/04/1987 | US4684864 Driving circuit of stepping motor for floppy disk drive |
08/04/1987 | US4684860 Electric motor drive equipped with a permanently magnetized rotor |
08/04/1987 | US4684855 Permanent magnet direct current motor apparatus |
07/29/1987 | EP0230134A2 System for driving drum |
07/28/1987 | US4683504 Apparatus for recording and reading binary information on a magnetic disc |
07/28/1987 | US4683428 Method of and a device for identifying the position of the rotor of a stepping motor |
07/28/1987 | US4683410 Method for detecting step losses in stepping-motor-driven adjusting devices |
07/28/1987 | US4683409 Stabilizing arrangement for a stepping motor |
07/28/1987 | US4683408 Stepping motor control apparatus |
07/21/1987 | US4682093 Power supply systems for inductive elements |
07/21/1987 | US4682092 Synchronous motor drive with chopper regulator |
07/15/1987 | EP0228475A1 Process and circuit arrangement controlling a stepping motor |
07/14/1987 | US4680524 Mechanism for positioning an output member |
07/14/1987 | US4680514 Motor |
07/07/1987 | US4678979 Apparatus for controlling the carriage of a printer |
07/01/1987 | EP0226870A2 Power supply/sink for use with switched inductive loads |
06/30/1987 | US4677359 Stepping motor drive method and system capable of stopping the rotor in a required angular position |
06/30/1987 | US4677358 Stepping motor drive controlling circuit |
06/30/1987 | CA1223632A1 Electromagnetic actuator system |
06/23/1987 | US4675590 Stepping motor driver with mid-frequency stability control |
06/23/1987 | US4675564 Permanent magnet type stepping motor |
06/17/1987 | CN86108546A Step motors |
06/16/1987 | US4673857 Method for driving a turn detector circuit which detects the turn of a step motor |
06/16/1987 | US4673856 Stepping motor drive circuit |
06/16/1987 | US4673855 Restraining the instability of a stepper motor |
06/09/1987 | US4672283 Control circuit for stepping motor |
06/09/1987 | US4672282 Stepping motor control circuit |
05/27/1987 | EP0223611A2 Method for mapping around defective sectors in a disc drive |
05/06/1987 | EP0220814A2 Means and method for stepping motor stabilization |
05/05/1987 | US4663577 Driving circuit for multi-phase stepping motor |
04/28/1987 | US4661882 Power supply/sink for use with switched inductive loads |
04/28/1987 | US4661755 Stepping motor control apparatus |
04/28/1987 | US4661754 Control circuit for a stepping motor |
04/28/1987 | CA1221016A1 Dosage and distribution device of a pressurized gas among n outlets |
04/23/1987 | DE3537113A1 Method of controlling a motor for continuously moving a printing carriage in typewriters or office machines |
04/21/1987 | CA1220817A1 Method of analysing the voltage induced in an exciter coil of a stepping motor |
04/14/1987 | US4658194 Closed loop control circuitry for step motors |
04/09/1987 | DE3535666A1 Device for setting a switch to a zero-position bit pattern of a stepping motor |
04/08/1987 | CN85107179A Stepping motor control apparatus |
04/02/1987 | DE3534601A1 Circuit arrangement for driving a stepping motor |
04/01/1987 | EP0216733A2 Modifications of a self- synchronous motor for step-by-step driving |
03/24/1987 | US4652806 Micro-stepping translator controller |
03/17/1987 | US4651076 Power maximizing circuit for stepper motors |
03/03/1987 | US4648026 Microprocessor stepper motor drive |
03/03/1987 | US4647889 Rotary control having variable detents |
03/03/1987 | US4647829 Means and method for stepping motor stabilization |
02/24/1987 | US4646223 Drive control system for electric equipment |
02/10/1987 | US4642544 Control circuit for driving step motor |
02/03/1987 | US4641073 Stepper motor control system |
01/20/1987 | US4638235 Motor driving apparatus |
01/15/1987 | DE3523806A1 Method for driving a 5-phase stepping motor |
01/14/1987 | EP0208125A1 Automatic tool exchange system for machine tools |
01/14/1987 | EP0208124A2 Improvement in stepper motors |
01/14/1987 | EP0208123A1 Printed-circuit motor |
01/13/1987 | US4636884 Head positioning control system in magnetic disk device of index servo system |
01/07/1987 | EP0207298A1 Stepper motor |
01/07/1987 | CN86202585U Chopper type constant-current driving mechanism for stepper motor |
01/06/1987 | US4634949 Control devices for use with a stepping motor |
01/06/1987 | US4634948 Stepping motor winding for bipolar drive |