[Soekris] voltage questions
Poul-Henning Kamp
phk at phk.freebsd.dk
Wed Feb 21 22:58:40 UTC 2007
In message <45DCCC28.7040400 at tiedyenetworks.com>, Mike writes:
>I have a solar site I want to convert over to 24v for effeciency
>reasons. Soekris 4801 spec says it can only take 6v-20v - does anyone
>know if it's possible to make it work up to say 28 or 30v without frying
>it, or should I forget about it and stick with 12v?
The battery of a 24V system will go as high as 29.4V during charging
so you would be 47% over spec.
If you only have the soekris as load, I would stick with the 12V
system, the current is so low that the performance difference
between a 24V and 12V is insignificant.
If you have other, heavier loads, go with the 24V system and put
a small DC/DC converter in front of the soekris.
--
Poul-Henning Kamp | UNIX since Zilog Zeus 3.20
phk at FreeBSD.ORG | TCP/IP since RFC 956
FreeBSD committer | BSD since 4.3-tahoe
Never attribute to malice what can adequately be explained by incompetence.
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