As for the temperature, the CFI had
less area to dissipate the heat compared with the commercial
inductor with larger volume, but core loss at the interior of
the core and winding loss would have a shorter distance to
travel to the surface thanks to the thinner profile. The heat flux
was calculated by dividing the core loss over the total surface
area, and the result of CFI was 20% smaller than that of the commercial. Both dc and ac winding resistances were lower
for the CFI. Whether the CFI has an advantage on the heat
dissipation and the larger signal performance is to be studied in
the future work.