This circuit uses an unusual integrated today. It fires when the voltage exceeds 13.6 V in a source set to 12 V. The circuit is suggested by Motorola in its 1990 Linear Databook.

This circuit uses an unusual integrated today. It fires when the voltage exceeds 13.6 V in a source set to 12 V. The circuit is suggested by Motorola in its 1990 Linear Databook.