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Stability if Current mode synchronous Buck converter at no_load is not achievable?

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Flyback

Well-Known Member
Hello,
The attached LTspice simulation of a Current mode, ccm, synchronous Buck converter at no_load cannot be stabilised, no matter what are the feedback compensation components. Why is this?
Its easy to stabilise it when on full load (300W).
 

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  • Sync Buck _no load.txt
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