A shunt diode between the inductor and the second FET switch provides a path for the inductor to discharge through when {HEAD ~ the second switch} opens {TAIL ~ the path} between the storage capacitor and the inductor 
opens
A shunt diode between the inductor and the second FET switch provides a path for the inductor to discharge through when { HEAD ~ the second switch } opens { TAIL ~ the path } between the storage capacitor and the inductor
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH