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Simple 12v power on/off with non latch button?

Discussion in 'General Electronics Discussion' started by sandman1976, Oct 29, 2012.

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  1. sandman1976

    sandman1976

    3
    0
    Oct 29, 2012
    Hi all! :)

    Does anyone have or know where i can get a circuit diagram for a 12v power on off?

    I have a 12v non latching button, i need to power a 12v relay (low current side)
    So i need the non latching button to touch on/touch off.

    Can anyone help?

    Thank You :)
    Ade.
     
  2. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    This will take the momentary and latch it with one press, unlatch with the next press... Make sure to include a flyback diode on the relay coil so you don't toast the board... Depending upon the current (up to 10A) you might even be able to skip the relay and just use this board to do the switching...

    http://www.pololu.com/catalog/product/750
     
  3. sandman1976

    sandman1976

    3
    0
    Oct 29, 2012
    Hmm, need to find this kit in the UK lol, didn't realise i was on an international forum! :)
     
  4. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    They ship worldwide, and if you click on the distributors link on their site there are seven UK distributors listed...

    I just checked the first UK distributor listed and they list the part it as in stock...
     
    Last edited: Oct 29, 2012
  5. sandman1976

    sandman1976

    3
    0
    Oct 29, 2012
    Great!
    I will get one ordered :)

    Thanks, will update with the modification im making when it arrives :) :)

    Thanks V much..
     
  6. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    We are the world... We are the children....

    Ehhh, I never liked that tune. Too sophomoric.

    Chris
     
  7. CocaCola

    CocaCola

    3,635
    5
    Apr 7, 2012
    Lets see if I can't fix that...
     
  8. CDRIVE

    CDRIVE Hauling 10' pipe on a Trek Shift3

    4,960
    652
    May 8, 2012
    It's 0124 hrs and I'm going to hit the sack with that stuck in my head. I hope I don't wake up my bride because I'm having difficulty with uncontrollable laughter. If you come across a parody for "The Wind Beneath My Wings" let me know. :D

    Oldie but a goody.. Google "Cows With Guns". A friend and I used to sing this in bars when we weren't feeling any pain. It's at least 12 years old by now.

    Chris
     
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