I have been looking around on E-bay/Amazon for a dual bench regulated power supply. They are all rather expensive. (£150 + Postage £25 and more)
What I have in mind is to buy two signal power supplies, (£50 each) and use side by side by connecting the two together.
http://www.ebay.co.uk/itm/5A-0-30V-Adjustable-DC-Power-Supply-Precision-Variable-Digital-Lab-w-clip-CE/301531393178?_trksid=p2045573.c100034.m2102&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140107092241%26meid%3Df72fff1084604a16ad49e951d48163ff%26pid%3D100034%26rk%3D1%26rkt%3D4%26mehot%3Dpp%26sd%3D151123354933
ie:
Taking the positive terminal power from one
Connecting the zero terminal to the positive terminal to the other/second
Hoping to take negative volts from the zero terminal of the second power supply
(Similar as connecting batteries together)
If I were to do this - would it work? - might there be conflict between the two? This idea of mine could save me £50 or more, crazy as it seems.
I know I could buy two voltage regulators - LM317 & LM337 – but by the time I’ve hurried them together, not forgetting further expense, transformers, Photo Resist board, cases, connectors, and so on.
Any help would be appreciated
Regards, Geoff. (GeoffC)
What I have in mind is to buy two signal power supplies, (£50 each) and use side by side by connecting the two together.
http://www.ebay.co.uk/itm/5A-0-30V-Adjustable-DC-Power-Supply-Precision-Variable-Digital-Lab-w-clip-CE/301531393178?_trksid=p2045573.c100034.m2102&_trkparms=aid%3D222007%26algo%3DSIC.MBE%26ao%3D1%26asc%3D20140107092241%26meid%3Df72fff1084604a16ad49e951d48163ff%26pid%3D100034%26rk%3D1%26rkt%3D4%26mehot%3Dpp%26sd%3D151123354933
ie:
Taking the positive terminal power from one
Connecting the zero terminal to the positive terminal to the other/second
Hoping to take negative volts from the zero terminal of the second power supply
(Similar as connecting batteries together)
If I were to do this - would it work? - might there be conflict between the two? This idea of mine could save me £50 or more, crazy as it seems.
I know I could buy two voltage regulators - LM317 & LM337 – but by the time I’ve hurried them together, not forgetting further expense, transformers, Photo Resist board, cases, connectors, and so on.
Any help would be appreciated
Regards, Geoff. (GeoffC)