{HEAD ~ a resistor} connected to the current feedback input of the PWM generator and current compensation IC, {TAIL ~ the electronic switch} and ground 
connected to
{ HEAD ~ a resistor } connected to the current feedback input of the PWM generator and current compensation IC , { TAIL ~ the electronic switch } and ground
HEAD HEAD HEAD HEAD HEAD HEAD REL REL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH