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Class Information
Number: 318/696
Name: Electricity: motive power systems > Open-loop stepping motor control systems
Description: Subject matter in which a rotary electric motor; of the type in which the rotary element tends to assume a predetermined angular position when the motor is continuously energized; indexes in discrete angular increments of essentially uniform magnitude as a function of pulse inputs derived from outside the motor.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 5231343 |
Driving apparatus for stepping motor capable of restraining motor noise |
Jul. 27, 1993 |
| 5227709 |
Closed loop single step response by open winding voltage feedback system and method for multiple phase step motors |
Jul. 13, 1993 |
| 5225756 |
Stepper motor driver circuit |
Jul. 6, 1993 |
| 5225757 |
Methods for deriving and implementing motion profiles for drive systems |
Jul. 6, 1993 |
| 5225759 |
Starting and control method for brushless DC motor |
Jul. 6, 1993 |
| 5216345 |
Mixed mode stepper motor controller and method |
Jun. 1, 1993 |
| 5216346 |
Waveform processing circuit for pulse generator |
Jun. 1, 1993 |
| 5216347 |
Stepper motor control system |
Jun. 1, 1993 |
| 5216348 |
Method of controlling a stepping motor and drive circuit employing the same |
Jun. 1, 1993 |
| 5216533 |
Motor motion detection circuit |
Jun. 1, 1993 |
| 5212434 |
Phase-locked step motor speed servo controller |
May. 18, 1993 |
| 5208523 |
Stepper motor with vernier control mode |
May. 4, 1993 |
| 5206568 |
Coordinated control of stepper motors |
Apr. 27, 1993 |
| 5206571 |
Stepper motor controllers |
Apr. 27, 1993 |
| 5198741 |
Drive control system of stepping motor |
Mar. 30, 1993 |
| 5196777 |
Stepping motor drive control system |
Mar. 23, 1993 |
| 5194793 |
Control device for controlling a plurality of servo motors and servo motor controlling method |
Mar. 16, 1993 |
| 5194795 |
Drive system and a control unit therefor |
Mar. 16, 1993 |
| 5194796 |
Micro-step drive system of a five-phase stepping motor |
Mar. 16, 1993 |
| 5185627 |
Electrophotographic printer with media motion motor control |
Feb. 9, 1993 |
| 5181429 |
Headlamp positioning device |
Jan. 26, 1993 |
| 5182507 |
Stepping motor driving circuit having failsafe function |
Jan. 26, 1993 |
| 5177422 |
Recording control system for a recording apparatus |
Jan. 5, 1993 |
| 5175482 |
Stepping motor control circuit |
Dec. 29, 1992 |
| 5164650 |
Control device for stepping motor |
Nov. 17, 1992 |
| 5157515 |
Image reading apparatus using a plurality of phase excitation modes |
Oct. 20, 1992 |
| 5155427 |
Drive controller for stepping motor |
Oct. 13, 1992 |
| 5151640 |
Scanning device having a memory for storing driving steps for a stepping motor |
Sep. 29, 1992 |
| 5148092 |
Stepping motor driving circuit having failsafe function |
Sep. 15, 1992 |
| 5132603 |
Stepping motor |
Jul. 21, 1992 |
| 5126764 |
Sheet transport unit for recording systems |
Jun. 30, 1992 |
| 5121327 |
Microcomputer-controlled electronic postage meter having print wheels set by separate d.c. motors |
Jun. 9, 1992 |
| 5117171 |
Method and apparatus for controlling a stepping motor |
May. 26, 1992 |
| 5113113 |
Constant current reluctance motor drive systems |
May. 12, 1992 |
| 5111242 |
Image forming apparatus having a more smoothly controlled image forming element |
May. 5, 1992 |
| 5107194 |
Stepper motor control to vary output torque |
Apr. 21, 1992 |
| 5105140 |
Peristaltic pump motor drive |
Apr. 14, 1992 |
| 5103151 |
Method for driving a stepping motor |
Apr. 7, 1992 |
| 5100120 |
Cut-sheet feeder control method |
Mar. 31, 1992 |
| 5097189 |
Recording apparatus |
Mar. 17, 1992 |
| 5087867 |
Motor driving apparatus and printer |
Feb. 11, 1992 |
| 5087868 |
Rotary actuator |
Feb. 11, 1992 |
| 5084661 |
Position control system for information storage system |
Jan. 28, 1992 |
| 5084663 |
Control arrangement for a reluctance motor |
Jan. 28, 1992 |
| 5083230 |
Access mechanism for magnetic disk apparatus |
Jan. 21, 1992 |
| 5079653 |
Information storage disc transducer position control system using last step damping |
Jan. 7, 1992 |
| 5077511 |
Stepper motor drive for way flow end station |
Dec. 31, 1991 |
| 5075609 |
Recording apparatus |
Dec. 24, 1991 |
| 5072166 |
Position sensor elimination technique for the switched reluctance motor drive |
Dec. 10, 1991 |
| 5068586 |
Steeping motor driving apparatus |
Nov. 26, 1991 |
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