Automotive ignition systems
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United States of America Patent
Stats
-
Mar 29, 1988
Grant Date -
N/A
app pub date -
Apr 30, 1986
filing date -
Apr 30, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
An automotive ignition system including an ignition capacitor electrically connected to a primary winding of a ignition transformer for providing energy to a spark plug which is connected to a second winding of the ignition transformer is disclosed. A charge circuit charges the ignition capacitor from a DC-DC voltage converter and includes an inductor and a thyristor. A discharge circuit discharges the ignition capacitor to the primary winding, and a control circuit operates the charge circuit and the discharge circuit in proper timed sequence during a demanded firing duration.
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