Discontinuous Conduction Mode (DCM) is widely used in flyback inverter. The advantages and disadvantages of using DCM are given below.
The question is what scheme of conduction to be used for PV grid tied flyback inverter. Either the Discontinous Conduction Mode (DCM) or the Boundary Conduction Mode (BCM). So here is the literature review for this question.
The difference between DCM and BCM is shown in the figure above. Now that it is clear that DCM has dead bands in it while BCM operates at the boundary of CCM lets have evaluation of these conduction modes.
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Difference between BCM and DCM |