Re: Lose A Few Volts

Jon, again my many thanks. I'll do some more searching on it.

Very Grateful,
John

--- In CAD_CAM_EDM_DRO@yahoogroups.com, Jon Elson <elson@...> wrote:
>
> John Hansford wrote:
>
> >Jon,
> >Thanks for the help on this. I really appreciate it.
> >I redid the picture.....
> >
> >http://www.flickr.com/photos/26361144@N00/
> >
> >
> >
> Yes, now it is right.
>
> >I did a good bit of searching on how it works, but never did
> >find the first diagram. I did find several using autotransformers
> >but none like this.
> >
> >The small transformer in the sketch is a common radio shack
> >"power" transformer....is that o.k. ?
> >
> >
> >
> Yes, but the secondary needs to be capable of handling the primary
current
> of the main transformer. This will still be a fairly small
transformer,
> though.
> In this case, it needs a VA rating about 1/10th of the main transformer.
>
> >And I may have to flip-flop the secondaries because it could
> >be either adding or subtracting.
> >
> >
> >
> Yes.
>
> >I think I've got it now. I am surprised that I couldn't find
> >this done anywhere else, seems pretty useful to me.
> >
> >
> >
> It is called a buck/boost transformer.
>
> Jon
>