Re: Re[2]: LF: Zmag of 45.6 Ohms OK, or should I try for better?

[Andy Talbot <andy.g4jnt@gmail.com>]

Ae = 152mm^2

So a bit smaller than Chris's ETD49 core.    

Andy

On 2 November 2015 at 16:22, Mike Dennison <mike.dennison@ntlworld.com> wrote:

The ID is 40mm.
It is similar to the one at:
http://uk.farnell.com/ferroxcube/tx58-41-18-3c90/ferrite-core-toroid-
3c90/dp/1784191

Mike
====

> Yes, the dimension that actually defines the core cross sectional
> area. That's the vital parameter when choosing Nmin for a given
> frequency / voltage
>
> Andy
>
>
> On 2 November 2015 at 15:58, Mike Dennison
> <mike.dennison@ntlworld.com> wrote:
>
> > > That is not the core diameter - if it were it would be an ENORMOUS
> > > core.
> > >
> > > > Well, I specified the core type as Chris was originally using a
> > > > different type, but of course the size is relevant. The diameter
> > > > is 55mm and I use two cores, one on top of the other, to reduce
> > > > heat.
> >
> > 55mm is the OD. Did you need the ID?
> >
> > Mike
> > ====
> >
> >
>
>
>
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