{HEAD ~ Field effect transistors} of which ON voltage is lower than the forward voltage of a diode are provided in {TAIL ~ each} of the synchronous rectifier circuits 
are provided in
{ HEAD ~ Field effect transistors } of which ON voltage is lower than the forward voltage of a diode are provided in { TAIL ~ each } of the synchronous rectifier circuits
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH