2006-11-06 11:42:32 · 2 answers · asked by Blue_Falcon 2 in Science & Mathematics ➔ Engineering
Two separate step-down transformers of 5vdc each, one + polarity & one - polarity.
2006-11-06 12:40:26 · answer #1 · answered by Anonymous · 0⤊ 1⤋
You would need what's called a DC-DC converter. For example,
Model RP08-1205DA would do the job. See http://www.recom-international.com/pdf/powerline/RP08_A.pdf
Difficult to give you more precise answer, since you neither specify whether you need 12V isolated to +/-5V or not, and also what power you need.....
P.S.: Come to think of it....what would actually happen if you use a LM7805 (+5V) and a LM7905(-5V), connect their respective inputs to the +12V and -12V supply, and connect both "common" leads (pin 2) together as a "floating" 0 Volt...? I leave it to someone else to call me a complete idiot.....
2006-11-06 21:22:39 · answer #2 · answered by Marianna 6 · 0⤊ 0⤋