High current acceleration servomotor driver

Details High current acceleration servomotor driver High current acceleration servomotor driver

1979-01-22

1982-11-23

Smith, Jr., David

Electricity: motive power systems

Braking

By auxiliary electric generator or by magnetic attraction or...

318331, 318417, H02P 516

Patent

active

043607683

ABSTRACT:
A motor control circuit for providing high acceleration currents by providing a driver comprising a transistor operating in the saturated region in parallel with a transistor operated in the nonsaturated region. The saturated transistor supplies the heavy accelerating current while the nonsaturated transistor is controlled to provide an increasing current through the accelerating period to make up for drops in the current flows through the saturated transistor due to build up of back emf in the motor.

REFERENCES:
patent: 2928009 (1960-03-01), Powell
patent: 3293522 (1966-12-01), Lewis
patent: 3383578 (1968-05-01), Lewis
patent: 3617845 (1971-11-01), McKenna
patent: 3706020 (1972-12-01), Klang
patent: 3740634 (1973-06-01), Bonzano
patent: 3803471 (1974-04-01), Price et al.
patent: 4017745 (1977-04-01), McMahon

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