Electronic ignition system for IC engine - of motor vehicle characteristic of ignition coil prim. to determine spark plug combustion duration

摘要

The ignition system determines the ignition timing point for each engine cylinder. An output stage contains switching transistors (T1, T2) for controlling the ignition coil. The output stage includes an evaluation circuit detecting the voltage characteristic on the primary side of the ignition coil to provide an output signal (U3) determining the spark plug combustion duration (tbr). ADVANTAGE - Ensures optimum spark plug life. Can be produced in batches.