Power supply monitor


Posted on Jun 28, 2012

This circuit uses a tricolor LED display to indicate acceptable and unacceptable output voltages. One to set the upper voltage limit, the other, the lower voltage limit. When the monitored voltage is above the set maximum, the LED display turns red. Yellow turns On for voltages below the set minimum, and green turns on for voltages between the high and the low settings. The circuit does not need a separate power supply. It is powered by the voltage it monitors.


Power supply monitor
Click here to download the full size of the above Circuit.

The circuit can be adapted to monitor voltage differences between two power supplies. Should the monitored voltages differ by more than a set value, a visual or an audible alarm would warn the operator about the difference. The circuit can also be modified for remote monitoring and the use of a separate power supply.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

AGC / S-Meter
Toggle on off switch
Low-frequency-fm-generators
Divide-By-2-Or-3 Circuit
Simple Spectrum Analyzer Adaptor For Scopes Circuit
lithium ion Battery management circuit for Nokia BL-4C / 5C Li-ION batteries
low current relay circuit
UPB1008K NECs LOW POWER GPS RF RECEIVER
Original Macintosh 512K Logic Board Schematic
TDA2030 35 watt audio amplifier circuit
Space Horticulture Circuit
Dynaco ST-70 Amplifier



Top