Ignition system for an internal combustion engine

Details Ignition system for an internal combustion engine Ignition system for an internal combustion engine

1979-07-12

1981-06-30

Lazarus, Ronald H.

Internal-combustion engines

High tension ignition system

Having dwell control

123644, 315209T, F02P 304

Patent

active

042757029

ABSTRACT:
In order to optimize the on/off ratio of the output switch in an electronic ignition system in which a monostable multivibrator is triggered by rpm-dependent transducer pulses, the time constant of the multivibrator may be changed by altering the discharging characteristics of its timing capacitor. A current-limiting circuit senses the current through the output switch and applies a signal to a circuit point which controls the discharging rate of the timing capacitor. The current-limiting circuit also prevents further increases in the primary coil current when a limiting value is reached.

REFERENCES:
patent: 3605713 (1971-09-01), Le Masters et al.
patent: 4043302 (1977-08-01), Sessions
patent: 4112904 (1978-09-01), Uno et al.
patent: 4153032 (1979-05-01), Chateau
patent: 4176645 (1979-12-01), Jundt et al.

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