> Last night I came across these schematics from OM Power.
> They use 8 250v windings, rectified, in series. Seems ingenious as
> that would lower the costs for the transformer, and it makes the use
> of toroidal cores an option.
This design (old) has the advantages of using 1 kW diodes and 300 Volt
capacitors and
if a diode shorts and blows it's fuse, the remainder of the power supply keeps
operating
at the reduced Voltage. The windings all need to be insulated for over 2 kV.
I don't see
where the transformer would be cheaper, every "Voltage level" would need to be
insulated.
"toroidal cores an option" ??? This design could be produced with 8 identical
transformers (or 4 with two windings each) of any style.
> What would be the drawbacks of copying such a design? Should each of
> the windings deliver the required current or should there be a safe
> margin?
Users choice, the greater the Ampacity the lower the impedance and better
the load
regulation.
--
Ron KA4INM - I'm proud to be Chuck's pop!
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