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difference between continuos and discontinuous

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ashein

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hi
in the flyback converter in the discontinuous mode there is a lower transient output voltage spike(in the comparison with continuous mode)to sudden changes in load current or output voltage.what is the reason of?
 

basically in the continous mode of flyback converter the current through the inductor is allowed to become zero..... and hence it is more subjective to transients.... because it can supply only if it has enough current......
 

In continous mode there is always energy in the core, so Faraday law applies,the inductor oppouses to sudden changes in current. But in discontinuos mode the inductor discharges totally and it must go from 0 to the rated level, the charge comes from the capacitor that varies voltage more without the help of the neregy that comes from the inductor.
 

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