[motm] How to get +5v from a Power-One supply?
2003-01-13 by elhardt@att.net
I know some of you have bought Power-One supplies that also have a 5 volt section. I just bought the HBAA-40W-A which is just like the regular motm power supply but with an addition PCB for 5 volts. I've hooked up the AC and I get +/- 15 OK, but the 5 volt board doesn't seem to recognize the ground on the 15 volt board and therefore my meter shows 0 volts. Only if I measure between the - Out/-S and +Out/+S poles on the 5 volt board do I see 5 volts. The question is what do I use for single DC ground to use the 5 volt section? I need to go into a cable that only has 4 connections, +15, -15, +5, and ground. Do I dare tie the -Out on the 5 volt board to the Common on the 15 volt board? I've never seen anything like this before. Thanks for any help. -Elhardt