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Thread: 30 Second Off-Delay timer?

  1. #11
    Maximum Bitrate galvitron's Avatar
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    I tried to build the circuit I posted earlier and failed miserably...

    I think I can manage wiring a relay to that timer. I will pick one up.
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  2. #12
    Constant Bitrate
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    go online and find some time delay relay
    easy and flexible
    magnecraft.com is a manufacturer of some of those
    EPIA TC 1G 256MB 60GB Linux,WindowMaker, Roadnav, Xine, XMMS, iGuidance3
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  3. #13
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    we use these in some of our burg alarm or delay egress installs

    http://www.altronix.com/index.php?pid=2&model_num=6030

  4. #14
    Maximum Bitrate galvitron's Avatar
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    Those both look like On-delay timers...

    I ended up ordering this one:

    http://www.anderson-bolds.com/Mercha...tegory_Code=ST
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  5. #15
    Maximum Bitrate Injector's Avatar
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    Quote Originally Posted by galvitron View Post
    Those both look like On-delay timers...

    I ended up ordering this one:

    http://www.anderson-bolds.com/Mercha...tegory_Code=ST
    in reality it really doesn't matter whether it's an delay on or delay off, because with a SPDT (5 prong) relay you can invert it from delay on or delay off just by playing with the common open and common closed positions.

  6. #16
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    Quote Originally Posted by Injector View Post
    in reality it really doesn't matter whether it's an delay on or delay off, because with a SPDT (5 prong) relay you can invert it from delay on or delay off just by playing with the common open and common closed positions.

    Absolutely correct.........its all about making or breaking the circuit after timer expires.

  7. #17
    Maximum Bitrate galvitron's Avatar
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    From what I understand, simply setting the trigger of an on-delay-timer to start when the trigger is removed is not right for this.

    Off-delay (my desired effect):

    Trigger -> ON then OUTPUT -> ON
    Trigger -> OFF then no change
    Trigger -> OFF + timer interval then OUTPUT -> OFF

    For the description above:

    Trigger -> ON then no change
    Trigger -> OFF then OUTPUT -> ON
    Trigger -> OFF + timer interval then OUTPUT -> OFF
    2006 Lancer Evolution IX MR In-Dash PC Project - WIP

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  8. #18
    Maximum Bitrate Injector's Avatar
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    Quote Originally Posted by galvitron View Post
    From what I understand, simply setting the trigger of an on-delay-timer to start when the trigger is removed is not right for this.

    Off-delay (my desired effect):

    Trigger -> ON then OUTPUT -> ON
    Trigger -> OFF then no change
    Trigger -> OFF + timer interval then OUTPUT -> OFF

    For the description above:

    Trigger -> ON then no change
    Trigger -> OFF then OUTPUT -> ON
    Trigger -> OFF + timer interval then OUTPUT -> OFF
    man all i can say i you just completly lost me, i know what the basic idea you want to do is, because i've done it in my car, i have a circuit composed of a resistor, 5 caps, and a transistor, what this does is that after the acc+ (ignition) is shutoff it continues to give power to the pc for another 40 seconds, then it kills power no matter if the pc shutdown or not so that my battery doesn't die, at the same time i have another circuit composed of 2 SPDT relays, a diode, one cap and one resistor to do the "button push" basically when acc is not energized common closed gets power and it gives power to the relay that "presses" the power button on my mobo, but because the cap is in the circuit when the cap fills up it stops giving power to the relay there by causing a pulse or "button push"

    is that sound like what you want to do??

  9. #19
    Maximum Bitrate galvitron's Avatar
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    So yours turns on when ignition turns on and turns off 40 seconds after ignition turns off? That is exactly what I am trying to do.
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  10. #20
    Maximum Bitrate Injector's Avatar
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    Quote Originally Posted by galvitron View Post
    So yours turns on when ignition turns on and turns off 40 seconds after ignition turns off? That is exactly what I am trying to do.
    ok now that were on the same page, how do you have your setup? dc-dc or with an inverter?

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