While doing the reverse engineering this is what I observed.
The PFC inductor is having 8 set of pins , out of which 4 are shorted to input (+) and 4 are shorted to GND (input return). Obviously , there is no continuity between the two sets (Figure 2).
Had it been a normal PFC inductor (as per Fig 1), I should have seen continuity between all pins of the inductor.
I am assuming the PFC inductor is split into 2 - Between +ve line and Return line.
I am not sure what is the advantage of splitting them? May be they are coupled- Would it provide any area/height advantage?