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Old 01-07-2015, 12:15 PM   #1522 (permalink)
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Originally Posted by MPaulHolmes View Post
I had written to XFMRS, and they came back with a design suggestion, along with a .xmls file with all their design steps. I asked about the skin effect when I saw how large of diameter cable it was that they were suggesting, and they said the stranding "helps to mitigate" the effect. Wait! But there isn't (much) AC current in the strands! All the AC (ok not all!) current is between the capacitor and the IGBTs. Doesn't that mean the skin effect isn't very applicable?
Are we talking about the inductor core cable or something else?

All the current on an inductor is AC, for discontinuous boost converters.
For continuous conduction only the ripple portion is AC
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