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Thread: Power off timer design

  1. #1
    Join Date
    Apr 2011

    Power off timer design

    Hello Everyone,
    I have been playing with electronics for sometime, but have only just become more interested.
    Attached is my second revision of a power down timer I have been working on for a CarPC.
    To allow enough time to stop for refuelling etc. without shutting down the pc each time.
    I post it here to be criticised and any suggestions added.
    My own personal thoughts are of its ability to handle enough current, as well as the circuit layout itself.

    Thanks for any feedback.

    Edit: revision 3, which includes a timed 5 volt line for FakeUPS connection
    Last edited by pyr0boy; 04-08-2011 at 10:54 PM.

  2. #2
    Raw Wave
    Join Date
    Nov 2009

    (from - specifically 2 minute on circuit... (down the page).[/QUOTE] - as posted in the12volt's 3 second delay

  3. #3
    Join Date
    Apr 2011
    Quote Originally Posted by OldSpark View Post

    (from - specifically 2 minute on circuit... (down the page).
    - as posted in the12volt's 3 second delay[/QUOTE]

    took me a while to figure, but is this in reference to the fact that my timer doesn't "shutdown" the pc, it only cuts the main power to the system?

    either way, its a good point and something that i'll have to integrate in the next revision. thank you.

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