ORIGINAL MESSAGE:
On Thu, 10 Dec 2009 06:28:25 +0800, Alek Petkovic <vk6apk@bigpond.com> 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?
REPLY:
In this schematic: http://www.sm5cki.se/ompower/images/OM2500%20HV%20Supply.jpg
and assuming the bottom most supply's negative is grounded:
Imagine a short between the top most supply's primary and secondary. Then follow
the current path from ground to the top most supply's AC primary to the
secondary, through the left-side diodes and back to the negative side of the top
most supply. It won't be the full positive DC voltage, but it will be 7/8ths of
it.
Click on the image to enlarge it.
73, Bill W6WRT
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