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Boost Converter? Answered

I make the rwilsford07 boost converter, but it doesnt work. The mosfet start heating and only gives 2v. I check the oscilator and is working perfectly, I try diferent things butit doesnt work. Before I make 120v, but I dont know how it stop working, I nad rebuild the circuit like three times but nothing happens. Can you help know why is this happen?

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user
steveastrouk (author)2011-12-14

Your inductor is probably faulty, and its saturating, causing the current in the Mosfet to exceed its limit.

Steve

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user

I dont think so, before it worked, but now it isnt. I think that is the gate of the mosfet, but I have it exactly as the rwilsford07 boost converter

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user

It might well have worked for a bit. If the Mosfets dead, try another, but observe the primary current

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