| Patents for H02P 8 - Arrangements for controlling dynamo-electric motors rotating step by step (4,097) |
|---|
| 10/23/1979 | CA1065010A1 Stepper motor feedback in position servo loop |
| 09/25/1979 | CA1063164A1 Pulse to step motor stabilizing circuit |
| 09/19/1979 | EP0004138A1 A pulse operated electric motor |
| 09/11/1979 | US4167693 Control arrangement for a brushless D-C motor |
| 08/14/1979 | US4164697 Method and system for squelching decaying current in motor phases |
| 08/07/1979 | US4163928 Open-loop electric drive with corrective controller |
| 06/26/1979 | CA1057404A1 Failure detect circuit |
| 06/19/1979 | US4158800 Control system |
| 05/29/1979 | CA1055564A1 Adaptive control circuit for a stepping motor |
| 05/08/1979 | US4153866 Pulse to step stepping motor control circuit |
| 05/08/1979 | CA1053969A1 Carrier traverse control for a serial printer |
| 04/24/1979 | US4151448 Pulse motor driving system |
| 04/24/1979 | US4150530 Method and device for controlling the thread joining in rotor spinning machines |
| 03/20/1979 | US4145644 Dual stepping angle stepper motor drive |
| 03/20/1979 | US4145643 Control apparatus for driving a pulse motor |
| 03/13/1979 | US4144467 Pulse motor |
| 03/13/1979 | US4143980 Shifting arrangement for exact space positioning of a writing carriage in typewriters |
| 02/27/1979 | US4142140 Stepping motor control circuit |
| 02/20/1979 | US4140956 Digital stepping motor drive circuit |
| 02/20/1979 | US4140955 Stepping motor drive method and apparatus |
| 02/13/1979 | US4138841 Electronic timepiece |
| 01/30/1979 | US4137491 Stepper motor with analog positioning |
| 01/23/1979 | US4136308 Stepping motor control |
| 01/09/1979 | US4134055 Inductor type synchronous motor driving system |
| 12/12/1978 | US4129816 Stepping motor control circuit |
| 11/28/1978 | US4127801 Power chopper supply for a bifilar wound stepping motor |
| 11/21/1978 | US4126821 Stepping motor control circuit |
| 10/24/1978 | US4122380 Step motor control system |
| 10/17/1978 | US4121145 High resolution stepping motor drive |
| 10/17/1978 | US4121144 Stepping motor energizing circuit and method for minimizing step position error |
| 10/10/1978 | US4119901 Pulse to step motor stabilizing circuit |
| 09/19/1978 | US4115726 Open-loop electric drive with corrective controller |
| 09/19/1978 | US4114364 Driving pulse width controlling circuit for a transducer of an electronic timepiece |
| 09/12/1978 | US4112671 Pulse motor driving system for use in a timepiece |
| 09/05/1978 | US4112345 Stepping motor with energizing circuit |
| 09/05/1978 | US4110968 Control for a step motor for the measurement of time |
| 08/15/1978 | US4107595 Current control system for a stepping motor |
| 08/15/1978 | US4107594 Step motor velocity control |
| 08/15/1978 | US4107593 Current control circuit |
| 08/01/1978 | US4104574 Stepping motor control arrangement |
| 07/25/1978 | US4103216 Stepping motor closed loop constant velocity control system |
| 07/18/1978 | US4101006 Carrier traverse control for a serial printer |
| 07/11/1978 | US4100473 Electric stepper motors |
| 07/11/1978 | US4100472 Satellite tracking antenna system |
| 07/11/1978 | US4100471 Stepping motor control circuit |
| 06/06/1978 | US4093905 Stepping motor using extended drive pulses |
| 05/23/1978 | US4091316 Method and apparatus for damping stepper motors |
| 05/02/1978 | US4087732 Digital stepping motor device circuit |
| 04/25/1978 | US4086530 Detection circuit for monitoring the failure of a system to respond in a planned manner to an inputted control signal |
| 04/11/1978 | US4084122 Drive circuit for stepper motor |
| 03/28/1978 | US4081736 Open loop motor stabilization method and circuit |
| 03/14/1978 | US4079297 Open loop facsimile phasing system and method |
| 02/14/1978 | US4074179 Position detection methods and apparatus for stepping motors |
| 02/07/1978 | US4072888 Method of controlling a stepper motor |
| 12/27/1977 | US4065708 Method and apparatus for determining stepping motor parameters from induced voltages |
| 10/25/1977 | US4055786 Control system for time sharing multiple stepper motors with a single controller |
| 10/25/1977 | US4055785 Stepping motor for electronic timepiece |
| 09/06/1977 | US4047081 Commutating arrangement for an electric motor supplied from a DC voltage source |
| 08/23/1977 | US4044291 Electric stepper motors |
| 08/16/1977 | US4042863 Incrementally controllable motor drive system |
| 08/02/1977 | US4039919 Multi-phase motor controller |
| 08/02/1977 | US4039783 Solid state step transmitter |
| 07/12/1977 | US4035805 Satellite tracking antenna system |
| 07/12/1977 | US4035708 Stepping motor control circuit |
| 06/21/1977 | US4031448 Motor driving system and circuit therefor |
| 06/21/1977 | US4031447 Improved control system for energizing a stepping motor |
| 06/21/1977 | US4031438 Control device for the rotary motor of a watch |
| 06/07/1977 | US4028605 System for passing products to be treated through a machine |
| 06/07/1977 | US4028604 Servo-motor control system |
| 05/24/1977 | US4025859 Drive system for switched inductive loads particularly for multi-phase stepping motors |
| 05/24/1977 | US4025837 Adaptive control circuit for a stepping motor |
| 05/17/1977 | US4024447 Stepping motor driving apparatus |
| 04/26/1977 | US4020366 Pulse train frequency control means |
| 04/19/1977 | US4019110 Stepping motor having rotational and counter rotational magnetic field control |
| 03/29/1977 | US4014164 Electronic timepiece including battery monitoring arrangement |
| 01/25/1977 | US4005264 Arrangement for scanning a disc-shaped type carrier |
| 01/11/1977 | US4002958 AC output power control system |
| 12/14/1976 | US3997829 Multi-phase stepping motor controller |
| 11/16/1976 | US3992657 AC feed control system |
| 11/09/1976 | US3991355 Stepper motor control |
| 09/21/1976 | US3982166 Control unit for paper transport |
| 09/21/1976 | US3981620 Pumping apparatus |
| 08/10/1976 | US3974434 Stepping motor signal circuit |
| 07/13/1976 | US3969642 Step motor for electronic timepiece |
| 07/06/1976 | US3968416 Motor control for a stepping motor |
| 06/29/1976 | US3967179 Power supply for a stepping motor |
| 06/29/1976 | US3967176 Process control apparatus |
| 06/22/1976 | US3965406 Stepping motor damping circuit |
| 06/15/1976 | US3963946 Driver circuit for step motor |
| 06/08/1976 | US3962619 Feed control device |
| 05/25/1976 | US3958898 Pump control systems |
| 05/18/1976 | US3958182 Electronic circuit for supplying energizing pulses of predetermined duration to an electric motor |
| 05/18/1976 | US3958167 Pulse motor |
| 04/20/1976 | US3952238 Programmable positioning apparatus and acceleration control system particularly useful therein |
| 03/23/1976 | US3946259 Electric stepping motors and remote registers |
| 02/24/1976 | US3940677 Direct-current stepping motor drive system |
| 01/06/1976 | US3931562 Electric driving arrangement using a stepping motor |