It seems all here agreed that the other element in LPF is Rpar(hi) which represent the various core losses at the PWM high frequency.
Now I have to find out a rather simple practical test to measure, even approximately, this Rpar(hi) of the unknown cores that the local retailers offer.
For instance, aren't the leakage inductances independent of frequency (at least for this application), so that they can be measured simply at 50 Hz?.
