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Thank you biswaIITH.
I was thinking the MOSFETs of both the legs are subjected to the same stress, and if the transformer inductance is insufficient to attain ZVS, both the legs should become overheated. But when you mentioned 'lagging leg', I did a Google search and found one pair is called...
Thank you very much to both of you.
FvM, I should admit I didn't know how ZVS is guaranteed. This is a circuit not designed by me, but I got it from somewhere else. I am still learning about this topology.
Easy peasy, if this is the issue, shouldn't it affect both the legs? How come it...
Hello,
I have an arc lamp power supply board which has a zero voltage switching full bridge converter circuit, utilizing UC3875 controller and IRF840 power MOSFETs. Input voltage is 230V which goes to a PFC circuit which provides 400V for the bridge. OUTA and OUTB terminals of the UC3875...
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