{TAIL ~ The control circuit} includes a plurality of current control stages , a minimum circuit , and {HEAD ~ a control system} which provides feedback from the load 
{ TAIL ~ The control circuit } includes a plurality of current control stages , a minimum circuit , and { HEAD ~ a control system } which provides feedback from the load
TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH