"Usual Suspect" wrote in message
obal.net...
I want to build a bench power supply, and am looking 'round the net for a
good circuit.

Requirements: 2 outputs, adjustable v, adjustable i, v & i meters (or
digits). Prefer 30v max, or similar. Preset v selections (5, 12, 15, etc.)
would be nice.

Here's one I found, complete with the designer's smiling face on each circuit
illustration:

http://members.shaw.ca/roma/supply-4.html

What's your favorite circuit? Features you like that I haven't mentioned?

Thanks,
--
Al, the usual


Perhaps you should get a copy of the current issue (March 2007) of Nuts & Volts
magazine. It has a construction article that's just begging for you to look at
it. The article is "A Test Bench Power Supply". The power supply, as
presented, provides two 0-20V @ 1A supplies and one fixed +5V @ 1A supply. Your
other fixed supplies are easily added by using the appropriate power
transformers and regulators. The regulator circuits are trivial.

www.nutsvolts.com
They will send you a free copy to entice you to become a subscriber. (My own
subscription has been ongoing since 1/80)
--
Dave M
MasonDG44 at comcast dot net (Just substitute the appropriate characters in the
address)

Some days you're the dog, some days the hydrant.