{HEAD ~ A second switching device}, operating out of phase with the first switch, allows {TAIL ~ the storage capacitor} to discharge through an inductor back to the unregulated input source 
{ HEAD ~ A second switching device } , operating out of phase with the first switch , allows { TAIL ~ the storage capacitor } to discharge through an inductor back to the unregulated input source
HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH