automatic poweroff circuit.

Discussion in 'The Projects Forum' started by Mhine28, Sep 8, 2014.

  1. Mhine28

    Thread Starter New Member

    Sep 2, 2014
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    hi people...
    im just going to ask if is there some king of circuit that can cut a power line from a outlet?
    and can you tell me guys how?
     
  2. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    the simplest type is known as a circuit breaker. more info needed to give a morr specific answer. sensing current flow and operating a relay would be another.
     
  3. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,387
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    A switch works wonders, but you have to stand by to opperate it when necessary.

    Perhaps you should share some other facts about your needs.
     
  4. crutschow

    Expert

    Mar 14, 2008
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    Under what conditions do you want the power cut from the outlet?
     
  5. wayneh

    Expert

    Sep 9, 2010
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    Lamp timer?
     
  6. Mhine28

    Thread Starter New Member

    Sep 2, 2014
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    it is suppose to cut automatically by timer...
     
  7. #12

    Expert

    Nov 30, 2010
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  8. Mhine28

    Thread Starter New Member

    Sep 2, 2014
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    i know there is already a device for that...
    im asking if how does it cut it off?
    and im not talking about analog type...'
    im thinking about the digital version...
     
  9. Kermit2

    AAC Fanatic!

    Feb 5, 2010
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    a timer cuts off power with a switch. some are mechanical and just open a set of contacts. others use a control voltage to operate a solid state relay.
     
  10. #12

    Expert

    Nov 30, 2010
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    The ones I design usually fire a triac...or not, and "not" means, "off".
     
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