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Below is the Half-Bridge LLC Converter Example from SIMPLIS. enter image description here

I would like to observe the loss from the low side MOSFET.

I want to compare the ZVS and Non-ZVS conditions.

I am curious about why the circuit operating in ZVS condition the power loss in Q2 has a negative spike in there, but there is no negative spike when the circuit operating in non-ZVS condition.

Does anyone know how to explain it?

enter image description here

Power JJ
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