Thread: AC - 12v DC Converter For Testing

Originally Posted by Darkman613

Here is what I have been using... works perfectly!

http://cgi.ebay.com/ws/eBayISAPI.dll...MEWN:IT&ih=012



I'm not sure if it's still available though...

Kind of on topic...Similar idea to above, I have a spare IBM power brick (from my T23 laptop) lying around. It's rated at 16V output. Can I use it to power up my Carnetix 2140 for bench testing? If so, it has two color wires, brown and blue, which is positive and which is ground? Also, based on above, it looks like they piggy back the ACC to constant power. Can someone confirm?

The only problem I know of with using a laptop power brick is most of them only put out 3 amps or so. Most likely not enough to run your computer. Many of the places that sell these bricks above sell ones that put out more amps.

This brick is rated at 4.5 amps fwiw. I'm actually just trying to bench test a servo that will motorize a screen unit.

Hmmm... I must be missing something here...

I've always used a car battery charger, set on low... it outputs around 14 volts, but all my stuff has always had internal power regulators anyhow...

I picked mine up from autozone, or something like that, for $30...


peace
Mike

Originally Posted by conjur

Hmmm... I must be missing something here...

I've always used a car battery charger, set on low... it outputs around 14 volts, but all my stuff has always had internal power regulators anyhow...

I picked mine up from autozone, or something like that, for $30...


peace
Mike

Me too. Worked well for over 6 years so far : http://www.mp3car.com/vbulletin/powe...wer-house.html

I don't understand the issue either. If I had to do any bench testing I would simply use a battery charger. It seems that it works for other people, so that's going to be what I do if I need to.

http://www.autozone.com/R,NONAPP3042...ductDetail.htm

Ricksastar: That looks like it should work, so long as it doesn't have an "auto off", that turns its self off when the battery is full (trust me, the auto off function causes heartburn... I thought I fried my PIC sooo many times, when nothing would work, till I realized that I stopped getting power, lol)

Not really sure if mine uses some sort of auto off, or if its just the fact that I'm pulling more current than it can supply... but either way, it's been a good testing tool, and has yet to let me down (*jinx's self*)

peace
Mike

sweet! thanks for the feed back Mike appreciate it. Gonna put it all together tonight and give her a test run... fingers crossed.