SEPIC converter (+ coupled inductor ) inductor currents

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treez

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Hello,

Do you agree that for a SEPIC converter, the primary and secondary currents are the same as a flyback when the sepic capacitor is small, say 100n (however, it is not possible to use a small value sepic cap as it rings too much with the leakage inductance, unless the switching frequency is well above the ringing frequency)
The bigger the sepic capacitor is made, the lower is the sepic peak current.
 

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