Electronic Alternator System - The Isolation Diode

The isolation diode discussed in this paper has been developed to provide a simple and reliable switch between the output of the alternator and the storage battery of a car. Its function is to block any flow of current from the battery back to the alternator and at the same time to permit use of the popular charge indicator light. This alternator charging system successfully employs electronic principles in converting alternating current to direct current and in giving complete control of field current without the contact points found in the conventional vibrator type regulator.