{TAIL ~ Digital error amplifier} 240 includes {HEAD ~ difference operator} 242 that computes difference signal E 246 given by: 
{ TAIL ~ Digital error amplifier } 240 includes { HEAD ~ difference operator } 242 that computes difference signal E 246 given by :
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH