Voltage monitor circuit


Posted on May 9, 2012

This circuit gives an early warning of the discharge of batteries. Zener diode Dl is chosen for the voltage below which an indication is required (9 V). Should the supply drop to below 7 V, Dl will cease conducting causing Ql to shut off.


Voltage monitor circuit
Click here to download the full size of the above Circuit.

Its collector voltage will now increase causing Q2 to start conducting via LED1 and its limiting resistor R4.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Tiny pH-meter
Color Sensor circuit
Klee Sequencer Circuit Theory of Operation
boost converter circuit for digital
2500w phase control
pwm lamp dimmer using ne555
MSF detector - turning the radio signal into data
Electromagnetic Field Probe with Meter Outputs
2001 chevy s10: indicator light headlight switchfuserelay bulbs
Temperature Sensor



Top