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