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