On Fri, Jan 22, 2021 at 08:30 AM, Jim Lux wrote:
You've got two cores with different permittivities, so the flux will
distribute unequally. So the real question is whether there are "pathological"
frequencies and power levels that might get you into trouble with saturation
or loss.
Thanks very much for the reply, Jim.
Ideally, the question of what happens when a Mix 31 and a Mix 43 core are bound together and turns wrapped through them would be answered by first solving appropriate equations and then verifying with measurements.
But I¡¯m not sure what the equations would be (although they are probably derivable by someone smarter than I). So I skip forward to making measurements.
And as my measurements show, there doesn¡¯t seem to be any surprises in Common-mode Z if 4 turns of RG-8 are run through the combined cores, at least over the HF range.
Of course, take my measurements with a block of salt. Others should verify for themselves, if they are thinking of trying something like this.
- Jeff, k6jca
