{HEAD ~ Capacitor CF} and inductor LF provides filtering of {TAIL ~ these pulses} of current IL to produce a more steady flow of current through resistor RL 
{ HEAD ~ Capacitor CF } and inductor LF provides filtering of { TAIL ~ these pulses } of current IL to produce a more steady flow of current through resistor RL
HEAD HEAD HEAD HEAD HEAD HEAD OTH OTH OTH OTH OTH OTH TAIL TAIL TAIL TAIL TAIL TAIL OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH OTH