Contactless ignition system for internal combustion engine

Details Contactless ignition system for internal combustion engine Contactless ignition system for internal combustion engine

1976-03-05

1978-04-18

Feinberg, Samuel

Internal-combustion engines

Igniters

Incandescent

F02P 302

Patent

active

040845672

ABSTRACT:
A contactless ignition system for an internal combustion engine responds to alternating current ignition signals produced in timed relationship with the engine. A primary winding of an ignition coil and a collector-emitter path of a switching transistor are connected across a direct current power source. A trigger circuit responds each cycle of the alternating current ignition signals for operating the switching transistor conductive and nonconductive in timed relationship with the engine to carry an ignition spark. A primary current limiting circuit, responsive to the voltage potential at the direct current power source, controls the amount of the base current for the switching transistor in accordance with the increased voltage of the power source, to thereby limit the primary current flowing through the primary winding to a predetermined magnitude.

REFERENCES:
patent: 3575154 (1971-04-01), Taylor
patent: 3605713 (1971-09-01), LeMasters et al.

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