Digital DC motor velocity control system

Details Digital DC motor velocity control system Digital DC motor velocity control system

1974-12-19

1976-04-13

Rubinson, Gene Z.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318318, 318327, 318341, 318345, H02P 516

Patent

active

039506827

ABSTRACT:
A velocity control system for a motor is provided wherein first counter means are reset by feedback pulses from the motor to record the feedback period. Decode means responsive to the first counter means determines whether the feedback period is long or short and the status of this is put into storage means. An up-down counter is responsive to the storage means for adjusting the motor drive pulse width and second counter means are reset by the motor feedback pulses to terminate the drive to the motor. Comparing means are responsive to the up-down counter and said second counter means for controlling the motor drive to maintain a precise motor velocity.

REFERENCES:
patent: 3331006 (1967-07-01), Strand et al.
patent: 3478178 (1969-11-01), Grace
patent: 3646417 (1972-02-01), Cassie et al.
patent: 3838325 (1974-09-01), Kobayashi et al.

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