Pulse tranformer help to explain

Discussion in 'Power Electronics' started by redflood, Jul 26, 2016.

  1. redflood

    Thread Starter New Member

    Jul 26, 2016
    3
    0
    Dear everyone,
    I have a induction cooktop, It was lose power. After checking the circuit, I detected a pulse transformer with 4 pins in layout. My trouble is, the current was sourced by both two coils of transformer, (I think both is secondary coils as diode directions), so where is the primary coil of transformer. Please take a look and help me!
    Thanks in advance!
    [​IMG]

    [​IMG]
     
  2. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,951
    387
    I can't make out the function of that transformer, but what is the blackening of the tracks near the left hand side of that picture?
     
  3. Papabravo

    Expert

    Feb 24, 2006
    10,147
    1,791
    Pulse transformers are used for signal level processing and don't usually handle large amounts of power. Why do you think it failed?
     
  4. ci139

    Member

    Jul 11, 2016
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  5. redflood

    Thread Starter New Member

    Jul 26, 2016
    3
    0
    I am not sure about your question. Can you mark it. Thankyou
     
  6. redflood

    Thread Starter New Member

    Jul 26, 2016
    3
    0
    I am not think it was failed, but when I debug the board, I have no idea when face with it.
     
  7. AlbertHall

    Well-Known Member

    Jun 4, 2014
    1,951
    387
    image.jpg
     
  8. ci139

    Member

    Jul 11, 2016
    341
    38
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