Was hoping someone can point me in the right direction and help me out.
I want to build some kind of circuit that would allow the following:
I have a 12V trigger power source which I want to use as a trigger for a relay. When the 12V trigger source is active, I want the relay to activate and provide the main 12V source for 3 seconds in a certain polarity. Then wait until the 12V trigger is turned off and then allow main 12V source through for another 3 seconds but in reverse polarity.
any suggestions and ideas of how I can achieve this would be very much appreciated.
i have come across the following time delay circuit, wondering if it can be used
many thanks
I want to build some kind of circuit that would allow the following:
I have a 12V trigger power source which I want to use as a trigger for a relay. When the 12V trigger source is active, I want the relay to activate and provide the main 12V source for 3 seconds in a certain polarity. Then wait until the 12V trigger is turned off and then allow main 12V source through for another 3 seconds but in reverse polarity.
any suggestions and ideas of how I can achieve this would be very much appreciated.
i have come across the following time delay circuit, wondering if it can be used
many thanks