THD measurement

Discussion in 'General Electronics Chat' started by prathap205, Aug 1, 2012.

  1. prathap205

    Thread Starter New Member

    Aug 1, 2012
    1
    0
    hi folks,
    i have an ac to dc converter,i want to measure THD ,can anyone clearly explain how to measure thd.and how to connect the circuit to supply,test procedure??
     
  2. wmodavis

    Well-Known Member

    Oct 23, 2010
    737
    150
  3. bountyhunter

    Well-Known Member

    Sep 7, 2009
    2,498
    507
    You need a piece of equipment that measures the harmonic content of the sine wave under test.
     
  4. crutschow

    Expert

    Mar 14, 2008
    13,052
    3,244
    If it's an ac to dc converter, are you trying to measure the THD of the input sinewave? :confused:
     
  5. #12

    Expert

    Nov 30, 2010
    16,343
    6,828
    Clearly difficult to measue the THD of the DC output! :D
     
  6. crutschow

    Expert

    Mar 14, 2008
    13,052
    3,244
    Easy to measure. It's zero. Or is it infinity? :rolleyes:

    My point was, why did the op want to measure the input THD?
     
  7. szhighstar

    New Member

    Jun 26, 2012
    27
    5
    for difference part. test standard is not same, frist you need a test circuit, then test on a meter.
     
  8. bountyhunter

    Well-Known Member

    Sep 7, 2009
    2,498
    507
    Either his boss or his professor told him to....;)
     
  9. PackratKing

    Well-Known Member

    Jul 13, 2008
    850
    215
    Total Harmonic Distortion ??? guessing....:confused:.....

    t'would be nice if people would define acronyms.........
     
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