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