This circuit is for 12 V batteries but can be used with batteries of other voltages by changing the zener diode. The trigger point is adjusted by R1. The operating system accepts equivalents.
This circuit was found in Linear Circuits Applications of Texas Instruments, originally using the...
This circuit with two operating modes was found in the September 1989 issue of Radio Electronics...
We found this circuit in the 1982 SGS Linear Integrated Circuits manual. The circuit is integrated is...