Electronic Ignition Circuit Diagram. The coil fires sends voltage to the spark plugs just as the breakers crack open and the dwell period ends. The grey area shows just how much more energy the spark has even over correctly adjusted new points.
Updated january 03 2019. 555 ignition coil driver. The primary circuit consists of the primary coil the breaker point and the cars batteries.
An ignition coil consists of two coils of wire wrapped around an iron core known as the primary winding or primary coil and the secondary winding or secondary coil.
The circuit uses an inverted 555 oscillator that is coupled to an on semiconductor bu323z darlington transistor 350v 10a that drives a conventional inductive discharge ignition coil. This circuit operates only on battery current and is controlled by the breaker points and the ignition switch. The coil fires sends voltage to the spark plugs just as the breakers crack open and the dwell period ends. The grey area shows just how much more energy the spark has even over correctly adjusted new points.