Birch, Stewart, Kolasch & Birch
Capacitive discharge electronic ignition system for automobiles
 An apparatus for the generation of ignition voltage to a spark plug within an ingition system of an automobile includes an integrated circuit inverter for converting DC power source voltage into a high frequency voltage which is stepped-up by a transformer and rectified to charge a capacitor. The charge stored on the capacitor is discharged by applying a trigger pulse to a silicon controlled rectifier, through a high voltage ignition coil for igniting the spark gap of a spark plug. The trigger pulse is produced by a timing control circuit which utilizes a pre-existing timing signal of the ignition system to produce the trigger pulse. The secondary voltage of the ignition coil produces between 20,000 and 60,000 volts. 
F F
F23Q F02P
inventional inventional
Hyeong I. Keh-Kun
Choi Choi