I need to build two circuits to activate when trigger power is lost. One to run 5-10 seconds, and on at 60-90 seconds. Power to the circuit will be 12vdc in a vehicle.
Better explanation: When I turn the key off and accessory power is cut by the ignition switch, this should trigger a timer circuit to activate a relay to continue power supply to the ignition power circuit. This will keep the vehicle running for an additional 60-90 seconds after key off.
The second circuit will be the same, but to provide a 5-10 second output to power another accessory relay.
I am quite the beginner in circuitry, any help will be very much appreciated.
Thanks in advance,
Justin
Better explanation: When I turn the key off and accessory power is cut by the ignition switch, this should trigger a timer circuit to activate a relay to continue power supply to the ignition power circuit. This will keep the vehicle running for an additional 60-90 seconds after key off.
The second circuit will be the same, but to provide a 5-10 second output to power another accessory relay.
I am quite the beginner in circuitry, any help will be very much appreciated.
Thanks in advance,
Justin