Inductor problem in Buck Converter

Thread Starter

umar380

Joined Oct 4, 2012
4
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.
 

Thread Starter

umar380

Joined Oct 4, 2012
4
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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