How-To: Build (Another) Benchtop Power Supply

My copy of the latest Nuts & Volts arrived the other day and the cover project is on building a fancy-schmacy benchtop regulated power supply, featuring dual 0 – 20V regulators with simultaneous voltage and current metering on digital panel displays. I’ve been toying around with the idea of building my own, so I was excited to see the piece. But as with a lot with N&V articles, it quickly climbed over my head and left a lot for me to work out on my own. Not that I couldn’t figure it out with a little homework, it’s just a little too much air pressure on the learning curve to keep my attention.

It did, however, spark my interest in other homebrewed benchtop supplies, so I did a search and found this one. It’s a really nice single regulated supply with two modes, a low setting of up to 6v and high at up to 30v, with current adjustment on the low setting between 0 – 1 amps and 1 – 10 amps on the high. The meters are analog. The project is well documented with lots of photos, diagrams, and a PCB layout. This would probably be closer to my speed, although I’d probably be just as well suited building the much simpler, cheaper one we blogged about a few months back.

Digg!