Full-bridge　zero-voltage-switch　(ZVS)　PWM　(pulse　width　modulation)　converter　combines　the　advantages　of　PWM　control　technique　and　resonant　technique,　but　Full-bridge　ZVS　is　achieved　only　under　large　load　current　because　resonant　tank　of　this　circuit　is　made　up　of　the　parasitic　capacitance　of　the　power　semiconductors　and　the　leakage　inductor　of　the　transformer　primary.　Two　saturable　inductors　as　magnetic　switches　are　added　to　secondary,　so　output　inductor　is　always　reflected　to　primary　and　assists　resonant　transition.　Full-bridge　ZVS　is　achieved　under-lower　load　current　in　this　case.　The　results　are　validated　by　computer　simulation　and　hardware　circuit　experiment.