True, but that doesn't put the toroid far ahead of the EI core in question. It is just slightly better in terms of EMI. Both have enough saturation current rating (likely), both are steel cores and ungapped (I think), although there may be an unintentional gap (due to imperfections of the lamination stamping) in the EI core (M-core).
Thus (in my opinion) the debatable comparisons are:
1) Air-core vs ferrite/steel core &
2) Gapped (open) core vs. ungapped (closed) core.
Toroid vs EI core of same material (laminated steel) doesn't seem to have much scope for discussion, due to the negligible flux leak.
Thus (in my opinion) the debatable comparisons are:
1) Air-core vs ferrite/steel core &
2) Gapped (open) core vs. ungapped (closed) core.
Toroid vs EI core of same material (laminated steel) doesn't seem to have much scope for discussion, due to the negligible flux leak.
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What's dispersion then ? I took it for leakage (flux not through core).
And if it's leakage flux, what makes you think it's "exactly zero" for a toroid? After all, there is a parallel path through the air for the flux isn't it?
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Well, if the the OP is implying (rather imprecisely) that the magnetic flux / field is invariably confined within a toroid core inductor, then I'm afraid he is, bluntly, wrong. While it is certainly possible, specific physical configurations / conditions have to be met for that to apply.
Now that's physics.
What is still mysterious to me is that the OP started this thread 72 hours ago, apparently asking for technical advice on whether a Mundorf Transformer / I core inductor is 'better' than a ~equivalent value Jantzen toroid core type, but has since started posting technical remarks, and stated 'Also,for me, in this application, the jantzen c-coils are better than the zero ohm mundorfs.'
Now that's physics.
What is still mysterious to me is that the OP started this thread 72 hours ago, apparently asking for technical advice on whether a Mundorf Transformer / I core inductor is 'better' than a ~equivalent value Jantzen toroid core type, but has since started posting technical remarks, and stated 'Also,for me, in this application, the jantzen c-coils are better than the zero ohm mundorfs.'
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thank you for clarification professor.
for me the thread can be closed, good continuation
i will unscribe to this thread.
bye 😉
for me the thread can be closed, good continuation
i will unscribe to this thread.
bye 😉
Think Jantzen has gone to the stock market and someone has gotten himself some shares... 🙄