The purpose of this circuit is to monitor the output voltage of a power supply. The under and over voltage indicator was found in the August 1991 Radio Electronics magazine.
Using two 741 operational amplifiers, this low-pass circuit has a cutoff frequency of 10 kHz. We...
This circuit was obtained in Motorola documentation from 1969. The components are from that time. In...
Found in an Electronic Design from the 90's, this circuit indicates three voltage levels by...