Capacitor Discharge Ignition - A Design Approach

A capacitor discharge ignition system tailored to modern automobile requirements has been developed which can be triggered direct from the regular distributor cam with breaker points or magnetic pick-up sensor. The system features improved fouled plug firing capability using the conventional ignition coil, draws current from the battery only when engine is rotating, and promises good performance in cold weather starting applications. Special attention has been given to keep ignition radiated radio interference to a minimum without sacrificing spark energy requirements for the many conditions of engine operation.