On 11/03/2008, Apptech <apptech@paradise.net.nz> wrote:
> > At a certain point, roughly 400Hz, the delta configuration
> > gives
> > a lot more wattage
>
> Probably only if you don't use a smart converter betwixt
> mill and battery. Done properly you should be able to use
> whatever is optimum for the mill and then buck convert it
> down.
>
> ...
>
> > I suggested taking two of the 3-phase terminals on the
> > turbine
> > head and feeding them into a bridge. He tells me that at
> > high
> > speed, the turbine can put out up to 110V (he didn't
> > specify
> > pk-pk or RMS). At low speed, just a few volts, obviously
> >
> > Is what I suggested safe/practical ? Also, how would I
> > cope
> > with such a wide range of input voltages into perhaps a
> > SMPS
> > or linear regulator ? Bit out of my comfort zone
>
> Safety is entirely in how you do it.
> Entirely practical.
> Why not use the output voltage as a power source?
> if you want to use the raw AC directly then
>
> - Linear regulator takes 50 mA x 100v = 10 Watts = wasteful
> etc.
>
> - SMPS makes it easy.
> My GSR would do it with ease. Or an MC34063 buck or
> whatever.
> GSR is well suited to very wide voltage range.
>
> Discuss.
>
>
>        Russell
>
> --


Yes - Russells GSR was the one I was thinking about
RP
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