Hi All,
Im a newbie in this forum and im doing a project and hopefully somebody can help me. I want to build a circuit that will create a pulse once it detects a DC supply and create another pulse once the DC supply is off. I am using this to my Audio set up where I have an external power amp with a push button power switch ( momentary switch) to be controlled by a 12V DC from my Audio Video Reciever. The 12V is continously ON once the receiver is ON and it will goes off once the receiver is also off. I will use this circuit to momentarily trigger a relay once detected the 12V and to momentarily trigger the same relay after the 12V is off. l saw a circuit on this forum which will create a pulse upon detecting a DC voltage but no pulse after the 12V if off.
OR any suggestions will be highly appreciated..
Thanks in Advance.
Im a newbie in this forum and im doing a project and hopefully somebody can help me. I want to build a circuit that will create a pulse once it detects a DC supply and create another pulse once the DC supply is off. I am using this to my Audio set up where I have an external power amp with a push button power switch ( momentary switch) to be controlled by a 12V DC from my Audio Video Reciever. The 12V is continously ON once the receiver is ON and it will goes off once the receiver is also off. I will use this circuit to momentarily trigger a relay once detected the 12V and to momentarily trigger the same relay after the 12V is off. l saw a circuit on this forum which will create a pulse upon detecting a DC voltage but no pulse after the 12V if off.
OR any suggestions will be highly appreciated..
Thanks in Advance.