Electronic ignition circuit

Details Electronic ignition circuit Electronic ignition circuit

1975-11-26

1977-06-21

Cox, Ronald B.

Internal-combustion engines

Igniters

Incandescent

315209T, F02P 100

Patent

active

040304698

ABSTRACT:
An electronic ignition circuit utilizing a magnetic pick-up winding has both ends of the pick-up winding connected by biasing resistor networks to the output terminal of the input stage of the circuit at which a positive going pulse appears when a negative going signal is induced in the pick-up winding. One end of the winding is connected by a diode to the base of a first transistor which controls a second transistor through a capacitor/resistor chain/diode series combination connected between the collector of the first transistor and said one end of the winding. The arrangement ensures that a spark can be produced even at low speed when a small signal is induced in the winding at the instant when ignition is required.

REFERENCES:
patent: 3871347 (1975-03-01), Weber
patent: 3885534 (1975-05-01), Webster

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