DC Motor control circuit

Details DC Motor control circuit DC Motor control circuit

1980-08-25

1982-06-08

Smith, Jr., David

Electricity: motive power systems

Braking

Automatic and/or with time-delay means

318338, 318345C, 318356, H02P 516

Patent

active

043341772

ABSTRACT:
A circuit is disclosed in which the armature and the field winding of a DC motor are respectively connected in series with first and second silicon controlled rectifiers to which controlled pulses are applied to render the rectifiers alternately conducting with a toggling action. A capacitor is connected between terminals of the rectifiers to facilitate the toggling action and a free-wheeling diode is connected in parallel with the field winding to insure that field current is flowing at the same time that armature current is flowing.

REFERENCES:
patent: 2297930 (1967-01-01), Payne
patent: 3325714 (1967-06-01), Torll
patent: 3544873 (1970-12-01), Gunsser et al.
patent: 3555389 (1971-01-01), Opal

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