12V Power Supply Needed for a on-board Car Computer

[Da5id4Vz]

I agree that it likely isn’t worth the hassle of a second battery with parallel charge, series discharge complications.

If you can find a 12 to 24 VDC DC-DC converter you could use that to step up and run this thing.

You could also buy it and try fiddling with it to change the input voltage... but how close it is to this thing is hard to tell:

http://www.acs.comcen.com.au/atxps.html

Did you try searching Ebay for supplies from VOX technologies?

[Da5id4Vz]

An interesting note to someone else’s letter to National semiconductor asking for advice on DC PC power sources:

http://wwwd.national.com/national/Po...7?OpenDocument

Good nots but they dont get you what you need.

This one is rated good, but looks expensive:

http://www.opussolutions.com

Looks like they do direct sales, quotes over phone?

[Da5id4Vz]

http://www.powerstream.com/mini-itx.htm

not huge current but only $35

or

An intersting DIY post from about two months ago:

http://www.diyaudio.com/forums/showt...986#post329986

(Funny when google sends you back to where you started)

I think I'm out of suggestions.

[ap0the0sis]

damn! i duplicated a post of two months ago... haha Me and that guy are looking for the same thing. I wonder if he found anything.

The one in the link you posted for $35 seems ok. im going to email the company and see how much shipping is. Might just be worth it.

thanks for the find,
ap

[Da5id4Vz]

An intersting and mildly related article from the /. people:

http://slashdot.org/articles/04/04/0....shtml?tid=185

Posted by CmdrTaco on Saturday April 03, @11:31AM
from the everyone-needs-a-project dept.
Kristian - Dreamless writes "Wanting to war drive with style? The other day I surfed the web to find a free dash pc solution to my car since the commercial ones cost around 2000-2500$ here in Denmark. I found DashPC.com and I must say this looks promising a very nice GUI and the features seems to be endless: Navigation with War driving, Multimedia and so on. Requirements? Low cost pc and a dash LCD display."

[Easyamp]

http://www.qsl.net/xq2fod/Electron/dcdc/dcdc.html

You could try this and adjust you sec turns for 48v instead of 120v, then just use regulators or build your own.

He stated about 20 watts so probably not enough power but a larger toroid could be used.

Here's a regulator I found some time ago, it even has short circuit protection.

Cheers,