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Hi,
Well you do have the ferrite material so you can get all the specs for the core (Bs, Br, Hc etc.) on the web (see TDK PC40). You can also measure the P/S ratio, leakage inductance, magnetizing inductance etc. Depends what you are looking for..
Hope this helps.
Ken
But then, what if we were straight lines? Wouldn't it be the same (same metal density, closely spaced, copper thickness)? Btw, these were mostly answers I got from Chinese manufacturers who couldn't clearly explain the issues except to say "we don't do spiral traces" ! I am still puzzled...
Hi,
I am currently designing a planar magnetic using spiral traces acting as primary/secondary coils. Although I was able to get a few prototypes done, most of the PCB fab say they do not do spiral traces PCBs (apparently they don't have the capability!) but it is unclear why.
This is...
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