Hello,
I have an invertor in my car, and would like to have to switch off automagically when i turn the key on & off, I know I can get a 12V ignition line (same line as what signals my carphone to turn on & off) to drive a relay for the invertor.
However, I would like the invertor to only switch on after 20seconds (approx?) after I turn on the key, and turn off approximately 20seconds after I turn off the key. I would also like a override toggle switch for Off, Auto, On ... and if possible a LED to indicate that the invertor is on.
I have looked at voltage switches (the type that turn off after the battery reaches a certain voltage etc).. but dont like that concept..
I am able to follow diagrams etc, but cannot design this kind of thing myself
Any help would be appreciated...
Many thanks,
Rob
I have an invertor in my car, and would like to have to switch off automagically when i turn the key on & off, I know I can get a 12V ignition line (same line as what signals my carphone to turn on & off) to drive a relay for the invertor.
However, I would like the invertor to only switch on after 20seconds (approx?) after I turn on the key, and turn off approximately 20seconds after I turn off the key. I would also like a override toggle switch for Off, Auto, On ... and if possible a LED to indicate that the invertor is on.
I have looked at voltage switches (the type that turn off after the battery reaches a certain voltage etc).. but dont like that concept..
I am able to follow diagrams etc, but cannot design this kind of thing myself
Any help would be appreciated...
Many thanks,
Rob