This circuit indicates when the monitored voltage drops below the value determined by the divider formed by R1 and R2. At the indicated values the LED lights up when a 15 V source drops below 12 V. The circuit is from old documentation.
This circuit indicates when the monitored voltage drops below the value determined by the divider formed by R1 and R2. At the indicated values the LED lights up when a 15 V source drops below 12 V. The circuit is from old documentation.
