Contactless igniton circuit for internal combustion engines

Details Contactless igniton circuit for internal combustion engines Contactless igniton circuit for internal combustion engines

1980-07-02

1982-08-03

Argenbright, Tony M.

Internal-combustion engines

High tension ignition system

Using capacitive storage and discharge for spark energy

123149R, 123651, F02P 308

Patent

active

043423043

ABSTRACT:
The present invention relates to a contactless ignition circuit for internal combustion engines wherein a primary short-circuiting current flowing through the primary winding of an ignition coil is made to flow through a power transistor controlled to be conducted and interrupted by a programable unijunction transistor and a potential dividing type capacitor is connected to the anode electrode so as to operate this programable unijunction transistor when the wave height value of the primary short-circuiting current flowing through the above mentioned primary winding becomes maximum so that a spark plug connected to the secondary winding will be operated to ignite at a high sensitivity.

REFERENCES:
patent: 4149509 (1979-04-01), Mathieu
patent: 4163437 (1979-08-01), Notaras et al.
Heathkit "Individual Learning Program in Semiconductor Devices", Copyright 1975, pp. 8-44--8-47.

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