{TAIL ~ The feedback circuit} responds to the sensing circuit to generate a first input signal that is indicative of the desired level of {HEAD ~ current} through the load 
{ TAIL ~ The feedback circuit } responds to the sensing circuit to generate a first input signal that is indicative of the desired level of { HEAD ~ current } through the load
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH