Sparkless circuit for low horsepower electronic motor brake

Details Sparkless circuit for low horsepower electronic motor brake Sparkless circuit for low horsepower electronic motor brake

1983-11-30

1985-12-24

Smith, Jr., David

Electricity: motive power systems

Induction motor systems

Braking

318759, H02P 324

Patent

active

045609136

ABSTRACT:
A control circuit for connecting and disconnecting an electronic motor brake with an AC motor and a source of AC power over electromechanical relay contacts wherein opto-coupled circuits operatively control energization and de-energization of a braking circuit with minimal time delay and provide operational response of the relay contacts in a substantially sparkless manner to promote contact life.

REFERENCES:
patent: 3581168 (1971-05-01), Kirkby
patent: 3590351 (1971-06-01), Littwin
patent: 3897595 (1973-07-01), Fearno
patent: 3913001 (1975-10-01), Kayama
patent: 4305030 (1981-12-01), Lorenz
patent: 4340131 (1982-07-01), Eriksson
patent: 4392098 (1983-07-01), Min

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