Digital speed control circuit for a DC motor

Details Digital speed control circuit for a DC motor Digital speed control circuit for a DC motor

1986-02-25

1987-04-07

Dobeck, Benjamin

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318327, 318439, H02P 516

Patent

active

046564039

ABSTRACT:
A speed control circuit provides control acceleration or deceleration with respect to a rate of speed or to standstill and is effected for a DC motor by way of a processor system which is provided with a speed signal proportional to the speed of the DC motor. During the acceleration or deceleration phase, the pulse duration of the speed signal has a path-dependent control criterion assigned thereto. During operation at constant speed, the pulse duration has a control criterion corresponding to a rated speed assigned thereto. Further, a switching device is provided by way of which the value or, respectively, the mean value and the direction of the current through the DC motor can be set on the basis of the control criterion.

REFERENCES:
patent: 4066941 (1978-01-01), Foster
patent: 4354146 (1982-10-01), Tenmyo et al.
patent: 4513232 (1985-04-01), Safiuddin
patent: 4523134 (1985-06-01), Kinoshita et al.
patent: 4584507 (1986-04-01), Taylor

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