The sensing circuit determines a value that is {HEAD ~ a function} of {TAIL ~ the current} conducted through the load 
of
The sensing circuit determines a value that is { HEAD ~ a function } of { TAIL ~ the current } conducted through the load
OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH