Power-Off Time Delay Relay

Posted on Feb 6, 2014

The two circuits illustrate opening a relay contact a short time after the ignition or ligh switch is turned off. The capacitor is charged and the relay is closed when the voltage at the diode anode rises to 12 volts

Power-Off Time Delay Relay
Click here to download the full size of the above Circuit.

Leave Comment

characters left:

New Circuits



Popular Circuits

filtering noisy power signal
Writing text on LCD Module using 89C51
Sinewave Oscillator
Simple Under-Voltage Cut-Out
Double transistor low noise of the preamplifier measured by high
FM radio circuit by the FET composed