Motor control apparatus

Details Motor control apparatus Motor control apparatus

1974-08-19

1976-07-13

Schaefer, Robert K.

Electricity: motive power systems

Braking

Dynamic braking

H02P 312

Patent

active

039696618

ABSTRACT:
A motor control apparatus is disclosed which comprises a speed control device for operating at a command speed a DC motor connected to a DC power supply, a dynamic braking device for braking the motor upon the issuance of a deceleration command, and a low-speed detector for generating a detection signal when the magnitude of the braking current of the motor is reduced below a set level. When the low-speed detector is energized, the speed control device is regulated thereby to run the motor at a predetermined low speed.

REFERENCES:
patent: 3694722 (1972-09-01), Reed
patent: 3860860 (1975-01-01), Moran et al.

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