short circuit protection

Discussion in 'General Electronics Chat' started by dileepchacko, Dec 29, 2008.

  1. dileepchacko

    Thread Starter Active Member

    May 13, 2008
    102
    1
    Dear All

    I want a short circuit protection circuit. These are the following specification of the output. maximum current 150mA. Maximum voltage 12V. I have used a op amp-comparator for this purpose, but it is not working properly. Instead of acting like a switching circuit it is acting like a amplifier. The short circuit protection should not contains any electromechanical relay.
     
  2. Wendy

    Moderator

    Mar 24, 2008
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    Would constant current work, or do you need current foldback?
     
  3. dileepchacko

    Thread Starter Active Member

    May 13, 2008
    102
    1
    I need constant current and the circuit should shutdown when any short circuit occur, for protecting the source.
     
  4. Wendy

    Moderator

    Mar 24, 2008
    20,766
    2,536
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