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