Battery Watchdog Circuit


Posted on Feb 2, 2013

This circuit uses a pair of Zener diodes to monitor battery voltage of a 12-V battery. If below 11 V, 1)1 ceases to conduct, pin 3 of 102 goes high, setting FF IC2 turning on Ql, Kl, and the battery charger.


Battery Watchdog Circuit
Click here to download the full size of the above Circuit.

At excess of 14-V battery voltage (full charge), D2 conducts, resetting FF IC2, and cutting off the battery charger.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

VGA to PAL and NTSC converter
Metal detector with 4030 CMOS
Hi Fi headphone amplifier circuit diagram
1-Chip 4-Channel PIC16F886 Data Logger
Bots Circuit Designs
simplest smf automotive battery charger
square wave oscillator circuit
control interface via pc keyboard
Stand-alone Arduino
SHD102 single station to pump water controlled auto-voltage starting circuit a closed



Top