Unable to supply enough voltage to relay

Discussion in 'The Projects Forum' started by spunky, May 17, 2012.

  1. spunky

    Thread Starter New Member

    May 17, 2012
    2
    0
    Hi, this's my first project. i has checked my circuit, at the terminal that i wish to control the relay is only able to supply about 2.5 to 3 V only. my relay need 5V to on the switch. (this is the lowest V relay that i can found here)

    any idea how to on the relay?

    thank you for you guys answer
     
  2. P-MONKE

    Member

    Mar 14, 2012
    83
    5
    Can you post the circuit?
     
  3. mcgyvr

    AAC Fanatic!

    Oct 15, 2009
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  4. crutschow

    Expert

    Mar 14, 2008
    13,052
    3,244
    Do you have any higher voltages available in the system?
     
  5. BJT_user

    Member

    Oct 9, 2011
    35
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  6. spunky

    Thread Starter New Member

    May 17, 2012
    2
    0
    thank you all for your reply.. :)

    i cant use transistor anymore.

    @crutschow
    the voltage supplied to the circuit is about 9V...so it's enough for the relay. but at the point i want to use it to control the relay, the voltage is just about 2.5V..
     
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