Dynamic brake circuit for motor

Details Dynamic brake circuit for motor Dynamic brake circuit for motor

1977-04-07

1979-03-13

Schaefer, Robert K.

Electricity: motive power systems

Braking

Dynamic braking

318379, 318375, 318534, H02P 312

Patent

active

041444825

ABSTRACT:
A brake circuit for a universal motor having an armature and a field winding normally connected in series therewith, the circuit including switch means operable to disconnect the power source and electrically connect the armature in series with the field winding and a brake resistor, with voltage limiting means in parallel with the field winding. The voltage limiting means include biasing diodes for maintaining the voltage across the field generally constant, resulting in a more even deceleration rate and a lower total brake time.

REFERENCES:
patent: 2627597 (1953-02-01), Johansson
patent: 3633093 (1972-01-01), Templeton, Jr.

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