Control system for D.C. motor

Details Control system for D.C. motor Control system for D.C. motor

1975-12-02

1977-12-20

Schaefer, Robert K.

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318341, 318434, H02P 500

Patent

active

040644430

ABSTRACT:
In the control system, the motor is supplied power in the form of a pulse train. The width of each pulse of the pulse train is modulated through the comparison between a reference voltage and the counter e.m.f. of the motor immediately prior to feeding of each pulse of the pulse train into the motor.

REFERENCES:
patent: 3488756 (1970-01-01), Skrivanek, Jr.
patent: 3588654 (1971-06-01), Balazs
patent: 3683253 (1972-08-01), Rummel et al.
patent: 3694721 (1972-09-01), Henry
patent: 3783360 (1974-01-01), Bundy
patent: 3883786 (1975-05-01), McNaughton
patent: 3976926 (1976-05-01), Egbert

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