RE: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads

Hi Rich -

Well, I guess this is another case where polarity with 1-phase AC
makes a difference! Thanks for the explanation. The
"cross-connecting" part rang a bell.

Regards,

Carlos Guillermo
VERVE Engineering & Design

-----Original Message-----
From: RichD [mailto:cmsteam@...]
Sent: Tuesday, December 09, 2003 1:58 PM
To: CAD_CAM_EDM_DRO@yahoogroups.com
Subject: Re: [CAD_CAM_EDM_DRO] Re: 80V Toroid & Ferrite Beads

Carlos,
Surely you gest!!!! :-)) Fire & smoke time.
The two ends are opposite polarity.
The center tap is internally the connection between the two coils
which actually forms a series adding connection.
On some transformers the center tap coil wires come to the surface
of
the insulation wrapper terminals and can be separated allowing you
to
cross connect for parallel windings to give double current output
and 1/2 the CT rating.
If you can safely do this and secure the wires properly, have at
it.
RichD

Carlos Guillermo wrote:

>
> Hi Jon -
>
> I was under the impression you could parallel the windings on a
> center-tapped transformer as well. What happens if you try? It
> seemed to me that whether you brought out two leads or one lead
> from the same middle point in a winding, you could just use that
> point as one terminal, then join the other two ends for the

second

> terminal of a paralleled setup. Is the direction of the each
> winding critical here?
>
> Regards,
>
> Carlos Guillermo
> VERVE Engineering & Design

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