The above data i have taken from TIDA-00688 page no.7 . The above design is with Planar transformer . consider a normal E type ferrite core( not planar core) E 20/10/6 & its magnetic mean length from datasheet is 46.mm . Let us assume turns as 6 & peak current (200 + (307/2))mA . Now in this case the maximum magnetic field strength will be equal to = (6 * 0.3535)/46mm = 46.1 A/m .
confirm me whether the above maximum magnetic filed strength calculation correct or not?