Inductor problem in Buck Converter

Discussion in 'General Electronics Chat' started by umar380, Dec 14, 2012.

  1. umar380

    Thread Starter New Member

    Oct 4, 2012
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    0
    I am working on SMPS (Buck Converter) and having problem with inductor. I am using a locally available inductor wounded on ferrite core. The problem is that whenever I turn on the load, my driver IC is burnt. I am using IR2104 driver IC to drive mosfets.
    Remember problem is probably with inductor, not with the circuit. as when I use an inductor with lower amp rating(3-4 A), circuit works perfectly. but i need high amp rating (8-10 A).
    Can anyone suggest me a solution? Which inductor should I use? I'd appreciate if anyone share his experience of working with SMPSs and MPPT Controllers.
     
  2. ErnieM

    AAC Fanatic!

    Apr 24, 2011
    7,392
    1,606
    Unless you are willing to share your schematic no suggestions are possible.
     
  3. umar380

    Thread Starter New Member

    Oct 4, 2012
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    0
    here is the schematic. please find attached.
    Thank you.
     
  4. #12

    Expert

    Nov 30, 2010
    16,321
    6,818
    That drawing is only 40mm wide and it fuzzes up when I expand it. No help.
     
  5. umar380

    Thread Starter New Member

    Oct 4, 2012
    4
    0
    I am attaching its original schematic file drawn in diptrace. if you have the software you can view this complete schematic.
    Thank you.
     
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