A series circuit consisting of a first coil , a second diode and {HEAD ~ the first capacitor} is connected in {TAIL ~ parallel} with the switching path 
is connected in
A series circuit consisting of a first coil , a second diode and { HEAD ~ the first capacitor } is connected in { TAIL ~ parallel } with the switching path
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL REL REL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH