In a message dated 01/06/2009 18:03:02 GMT Daylight Time, [email protected] writes:
Anyone running with a power supply with built in UPS ? A long time ago (>15yrs) I did project that for a supply did a/c line -> battery -> +5/+12/-12. A side advantage was great isolation. ----------- Probably the easiest way to do that for the Tbolt would be to generate pos and neg 12 volt supplies, either from a single or pair of transformers, with the pos 5 volt derived from the pos 12, and also use the supplies to trickle charge a couple of 12 volt sealed lead acid batteries. It would be easy enough to calculate ratings based on required battery running period and the battery on the neg 12 rail could be significantly lower capacity than that on the positive supply. regards Nigel GM8PZR _______________________________________________ time-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there.
