In {TAIL ~ an energy saving mode}, {HEAD ~ the field effect transistors} in the synchronous rectifier circuit that outputs a diving voltage are turned OFF 
In
In { TAIL ~ an energy saving mode } , { HEAD ~ the field effect transistors } in the synchronous rectifier circuit that outputs a diving voltage are turned OFF
REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH