On Fri, 2008-06-27 at 20:12 +0200, Carlos E. R. wrote:
-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1
The Friday 2008-06-27 at 09:01 -0400, Brian K. White wrote:
What I propose is:
PSU ____ / \ 48V DC --> +12V -12V +5V -5V 3? Sorry to range off-topic, but here's my reasoning. I considered direct dc-dc conversion, but, also being a HAM, there is probability of RFI and even lightning entering the computer from the solar system/battery bank outside. Having a good commercial UPS already, I am replacing its batteries with my (soon-to-be) 48v stack, and the UPS will then function normally in response to the few hours a day we are on generator. The higher capacity solar-charged batteries will carry the system for the remainder of the day.
The main system is (4) GNB Absolyte-IIP 440AH batteries in parallel for 12v. They supply two (phase-locked) inverters and 12v lighting circuits to the house. It would be slightly more efficient running the main at 48, but at the time the RV inverters were much less expensive than an industrial inverter. Being 12v also let me expand the solar panels as I went along, and allow for several "mobile" radios in the HAM shack. So I hope that answers the /tmp question! Tom in NM 73 all -- To unsubscribe, e-mail: opensuse+unsubscribe@opensuse.org For additional commands, e-mail: opensuse+help@opensuse.org