Yep, sounds good Larry. Thanks for that. It's only 10 past 7 in the
morning and I've learned something already. Gotta be happy with that.
Cheers from sunny Perth,
Alek.
At 07:05 AM 10/12/2009, Larry Benko wrote:
>Alek,
>
>Two power supplies, each with their own diodes and capacitors do NOT
>change anything regarding voltage breakdown in the 2 transformers when
>the outputs ar put in series. Think of the circuit like this: During
>part of the AC cycle certain diodes will be conducting. Redraw the
>circuit with the conducting diodes as shorts and the non-conducting
>diodes as opens and then look at the circuit. Unfortunately the high
>side transformer is still stressed more than the low side one. It would
>be nice if this wasn't the case but then again there usually is no such
>thing as a "free lunch". :)
>
>73,
>Larry, W0QE
>
>Alek Petkovic wrote:
> > It doesn't look to me, like the secondaries are in series.
> >
> > Each secondary has it's own rectifier and the dc outputs are in
> > series. Is there some sort of path back through the full wave bridge
> > rectifiers which ties the secondaries together?
> >
> > Cheers,
> > Alek
> > VK6APK
> >
> > At 05:04 AM 10/12/2009, Bill, W6WRT wrote:
> >
> >
> >> Whenever you put transformer secondaries in series you must be
> careful not to
> >> exceed the insulation rating between a secondary and the iron
> core, and also
> >> between a secondary and the AC primary.
> >>
> >>
> >
> >
> > http://www.qrz.com/db/vk6apk
> > http://www.qrz.com/db/vk6py
> >
> >
> > _______________________________________________
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> > Amps@contesting.com
> > http://lists.contesting.com/mailman/listinfo/amps
> >
> >
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