Starter motor control circuit for an internal combustion engine

Details Starter motor control circuit for an internal combustion engine Starter motor control circuit for an internal combustion engine

1976-04-09

1978-08-01

Dobeck, B.

Prime-mover dynamo plants

Electric control

Electric-starting motor with generator

180105R, 123179BG, F02N 1106, H02P 904

Patent

active

041045343

ABSTRACT:
A starter motor control circuit for an engine includes an input circuit which is controlled by the ignition contact breaker of the engine, the capacitor charging each time the contact breaker opens and discharging relatively slowly when it is closed. The capacitor is connected by a complementary emitter follower transistor pair to a level detector circuit which produces an output when the voltage on the capacitor is between predetermined limits. At below a predetermined speed this output is a train of constant length pulses which control charging and discharging of a further capacitor. When the voltage on the capacitor is less than a predetermined minimum a regenerative switching circuit is operated to cut out the starter circuit. A feedback transistor maintains the capacitor discharged until the engine stops.

REFERENCES:
patent: 3053243 (1962-09-01), Domann
patent: 3443112 (1969-05-01), Huntzinger
patent: 3715004 (1973-02-01), Pasek

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