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