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