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