It is an object of {HEAD ~ the invention} to improve {TAIL ~ a direct voltage flyback converter} of the type initially mentioned 
to improve
It is an object of { HEAD ~ the invention } to improve { TAIL ~ a direct voltage flyback converter } of the type initially mentioned
OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH