control logic, having a pair of inputs each coupled to {HEAD ~ an output} of {TAIL ~ a respective voltage monitor}, and having an output coupled to the control input of the voltage regulator 
of
control logic , having a pair of inputs each coupled to { HEAD ~ an output } of { TAIL ~ a respective voltage monitor } , and having an output coupled to the control input of the voltage regulator
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH