Semiconductor controlled ignition systems for internal combustio

Details Semiconductor controlled ignition systems for internal combustio Semiconductor controlled ignition systems for internal combustio

1974-07-23

1976-04-13

Burns, Wendell E.

Internal-combustion engines

Igniters

Incandescent

315209T, F02P 302

Patent

active

039497224

ABSTRACT:
To improve the operation of semiconductor control ignition systems under widely varying supply voltage conditions, a voltage divider having a division tap point is connected in parallel to the main switching part of the switching transistor of the ignition system, and a voltage breakdown element, typically a Zener diode is connected from the tap point to the control electrodes of the semiconductor switch to provide an additional control voltage thereto if the voltage at the tap point exceeds a value leading to breakdown of the breakdown device (Zener diode); the main control circuit for the main ignition transistor may be conventional.

REFERENCES:
patent: 3749974 (1973-07-01), Kissel
patent: 3750638 (1973-08-01), Tanaka
patent: 3762383 (1973-10-01), Richards et al.
patent: 3831570 (1974-08-01), Compton et al.
patent: 3841288 (1974-10-01), Kortelmg

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