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Old 01-07-2015, 12:24 PM   #1524 (permalink)
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Originally Posted by MPaulHolmes View Post
They came back with a design for an inductor (core, number of windings, type of winding) design based on 10KHz, 600amp continuous. They also ended up with 30% current ripple rate.

Thats 120Amps ripple.

Two questions come to mind:

Do we really need 600Amps? What is the input and output current and duty cycles?

Could this be reduced by increasing the switching frequency to 15-20KHz? (will their core support?) This is desirable to reduce the output ripple and most IGBT's are fine with it. It also means the inductor ripple goes way down.
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