Drive and brake circuit for speed controlled DC motors

Details Drive and brake circuit for speed controlled DC motors Drive and brake circuit for speed controlled DC motors

1976-12-15

1978-09-05

Scott, James R.

Electricity: motive power systems

Braking

Plural, diverse or diversely controlled braking means

318380, H02P 314

Patent

active

041123417

ABSTRACT:
In a system which controls the speed of a DC motor and in which the motor is driven by connecting the motor field winding and a series rectifier across the motor armature, a braking force is applied by connecting the armature across a braking resistor and the series rectifier. Regenerative braking is accomplished by connecting the armature across the line when the line voltage is low, and non-regenerative braking is accomplished through a series resistor when the line voltage is high. Suitable diodes or control rectifiers connect the armature across the line or the braking resistor.

REFERENCES:
patent: 3582742 (1971-06-01), Martin
patent: 3651390 (1972-03-01), Vidal et al.
patent: 3876920 (1975-04-01), Meissen et al.
patent: 3983465 (1976-09-01), Tsuboi et al.
patent: 4049998 (1977-09-01), Boxer

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