Help Needed.

Discussion in 'General Electronics Chat' started by caluctra, Nov 29, 2010.

  1. caluctra

    Thread Starter New Member

    Oct 27, 2010
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    0
    Hello all...

    I need help limiting a 15Vac to 250 mA max; for example
    I have read here on the forum, but most of what it is discussed regards DC current limiters.

    any help will be apreaicated.
     
  2. thatoneguy

    AAC Fanatic!

    Feb 19, 2009
    6,357
    718
    What is the load? A resistor can limit AC or DC current.
     
  3. caluctra

    Thread Starter New Member

    Oct 27, 2010
    11
    0
    Thanks for the replay
    the load is a transducer
     
  4. Kermit2

    AAC Fanatic!

    Feb 5, 2010
    3,772
    931
    as in a pressure transducer?

    that should have a resistor already in it and you simply supply 'excitation' voltage. The resistance will limit the current on its own, as long as you don't give it a voltage too far out of its specified range. Should be listed on the side of the unit as 24 volt or 28 volt or 5 volt or 10 volt etc etc etc.
     
  5. caluctra

    Thread Starter New Member

    Oct 27, 2010
    11
    0
    it is a linear variable displacement trasducer, it has internal resistors and a coil.
    on one of the test "in the manual" it asks for a given voltage at a given max current allow.
     
  6. blueroomelectronics

    AAC Fanatic!

    Jul 22, 2007
    1,758
    98
    A 15VAC supply and a 250mA fuse.
     
  7. beenthere

    Retired Moderator

    Apr 20, 2004
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