{HEAD ~ a booster inductance} connected to the electronic switch, the battery and {TAIL ~ the power output terminal} 
connected to
{ HEAD ~ a booster inductance } connected to the electronic switch , the battery and { TAIL ~ the power output terminal }
HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL