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