Hi experts
we're evaluate a CCM totem pole solution . Referenced from TIDM-2008/TIDM-1007 . The AN shows the control timing of active mos and sync mos ,the sync mos is turned on after active mos finished duty-softstart.
I also read some other solutions ,they verify the inductor current ,when current is continues ,then turn on the sync mos ,otherwise turn off the sync mos .
Is it right to distinguish CCM and DCM mode to control the sync mos or Do I need more hardware circuit to avoid current flow back during DCM ?