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