Different design configurations of charge pumps may include more than {TAIL ~ just two switches} but charge pumps {HEAD ~ all} operate in principle the same way 
Different design configurations of charge pumps may include more than { TAIL ~ just two switches } but charge pumps { HEAD ~ all } operate in principle the same way
OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH