{TAIL ~ This invention} relates generally to power conversion apparatus and, in particular, to {HEAD ~ DC DC switching converters} 
{ TAIL ~ This invention } relates generally to power conversion apparatus and , in particular , to { HEAD ~ DC DC switching converters }
TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD HEAD