[MLB-WIRELESS] Solar power modelling

Ben Anderson a_neb at optushome.com.au
Thu Apr 3 16:00:41 EST 2003


Still talking over a thousand dollars for the power system...

Ben.


> > > > From memory, Vak did this. They draw around 400mA I think.
> > >
> > > At what voltage?
> > >
> > > P = V x I
> > >
> >
> > Sorry, at their default voltage: 5V.
>
> Hmm, that's only 2W.  If you're going to use a 12V solar system, I'd
> strongly recommend using a switchmode regulator to bring the voltage down.
> That would probably save 50% power, compared to a linear regulator which
> would dissipate (i.e. waste) at least 7/12's of the supplied power as
heat.
> A switchmode regulator should be 80-90% efficient.
>
> This correspondence is for the named person's use only. It may contain
> confidential or legally privileged information or both. No confidentiality
> or privilege is waived or lost by any mistransmission. If you receive this
> correspondence in error, please immediately delete it from your system and
> notify the sender. You must not disclose, copy or rely on any part of this
> correspondence if you are not the intended recipient.
>
> Any opinions expressed in this message are those of the individual sender.
>
>
> To unsubscribe: send mail to majordomo at wireless.org.au
> with "unsubscribe melbwireless" in the body of the message
>
>



To unsubscribe: send mail to majordomo at wireless.org.au
with "unsubscribe melbwireless" in the body of the message



More information about the Melbwireless mailing list