The function of buck regulator 32 assures that Vc is at {HEAD ~ the optimum level} for {TAIL ~ demagnetization} 
The function of buck regulator 32 assures that Vc is at { HEAD ~ the optimum level } for { TAIL ~ demagnetization }
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD REL TAIL TAIL TAIL TAIL TAIL