[time-nuts] magnetic electronic components

Tom Harris celephicus at gmail.com
Mon Jun 22 19:05:45 EDT 2015


The techniques are still alive & well in power electronics. Try looking at
an introductory textbook on the subject. Engineers with decades of
experience in this will design inductors, then trim them by hand to achieve
the best results. One old guy would crack toroids in half, and then shim
them with multiple cigarette papers to make a gapped core.


Tom Harris <celephicus at gmail.com>

On 23 June 2015 at 05:02, Attila Kinali <attila at kinali.ch> wrote:

> Hi,
>
> I was looking up some stuff and realized (again) that I don't know
> anything about how magnetic electronic components (inductors/solenoids,
> transfomers, baluns, ferrite beads...) work. Yes, I can calculate
> the inductance, I know how to get from the AL value to number of
> windings. But I don't know anything about the practical issues
> or where they come from. Unfortunatelly, this knowledge seems to
> generally rare among EEs (at least everyone I asked in the last
> couple of years) and books about it are either long out of print
> (with no pdf available) or more geared towards the physics student.
>
> So, does anyone have any recomendation where I could read up
> on this? Books, pdfs, webpages,... anything.
>
> Also something that covers more the application side, ie how to
> use ferrite beads/toroids to build devices, would be appreciated.
>
> Thanks in advance
>
>                         Attila Kinali
>
> --
> I must not become metastable.
> Metastability is the mind-killer.
> Metastability is the little-death that brings total obliteration.
> I will face my metastability.
> I will permit it to pass over me and through me.
> And when it has gone past I will turn the inner eye to see its path.
> Where the metastability has gone there will be nothing. Only I will remain.
>
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