{HEAD ~ The intermediate voltage} across the capacitor is fed back to {TAIL ~ the second controller} which in turn changes the PWM signal to regulate the intermediate voltage 
is fed back to
{ HEAD ~ The intermediate voltage } across the capacitor is fed back to { TAIL ~ the second controller } which in turn changes the PWM signal to regulate the intermediate voltage
HEAD HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH REL REL REL REL TAIL TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH