Russell McMahon wrote:
>
> > Hey Roman hows the high voltage version coming?
> > I am in need of a smps that can take 200 - 300 DC volts input and deliver
> > ~13.6Vdc out at 10 amps
>
> I'd think really hard about using something else for a design of that
> voltage and power level. I suspect Roman may agree.

You are right! :o)


> While Roman's design
> appears superb it is still relatively untried and may yet have subtle
> "gotchas"

Some things are quite safe, like it can't feed any
current to the output UNLESS output is below the
set voltage. BUT, if the output is fed from the load
(like a decelerating motor) the output voltage will
rise accordingly. However this will also happen with
many other series regulators etc.

One "gotcha" is that to be efficient it is tuned for
an input voltage "range". If the input voltage gets
too far below that range it may go linear, and increase
dissipation of the switching transistor. This needs
to be taken into account. :o)
-Roman

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