Re: inductor polarity

On 2/28/25 8:11 AM, john larkin wrote:

On Thu, 27 Feb 2025 21:24:23 -0800, Joerg <news@analogconsultants.com>
wrote:
 

On 2/27/25 7:50 PM, john larkin wrote:

[...]

I'd rather use surface-mount shielded inductors, but these tall
unshielded drum cores have way more L and less R than a shielded part,
for a given PCB footprint.
>

>
But those also talk a lot :-)

 One could make a 10s of kilovolt isolated power supply with a pair of
"shielded" inductors separated by a sheet of plastic.
 

Be careful. Thick plastic maybe but the thin stuff can blow and depending on the kind of plastic let off some toxic fumes.
--
Regards, Joerg
http://www.analogconsultants.com/