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Cheap & easy 17v power
Cheap & easy 17v power

New MessageCheap & easy 17v power (modified 0 times) Q000
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He is going in a different direction than we are, but kudos to this guy for thinking of the general principal:

http://www.ocmod.com/code/show_art.php?id=28&pg=1

For my IO, I’m going to get a little PC PS out of an old Zenith mini desktop or something like that, use the drive connectors to power the HD, fans and accessories, and the Hack:

Hook the PS –5v to the IO’s neg input, the +12 to the pos input for 17v, which I figure is enough over 12v to power the voltage regulators in the IO’s internal power supply. I’m just guessing here so I would love to hear from anyone with practical experience or an opinion on powering an IO with 17v or less.

-Q

I hide my e address from spam bots.
My email is ps111(at)home.com
Replace (at) with @ to email me.
08-21-2001 20:32:14

New MessageRE:Cheap & easy 17v power (modified 0 times) CQDX
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I use a 15 v 3 amp power supply on a Gateway Connected Touchpad without any problem. It is my understanding the IO and gateway are generationally related

make sure the -5 +12 parts of the power supply have the same current rating.

08-23-2001 18:24:36

New MessageRE:Cheap & easy 17v power (modified 0 times) Linuxguru
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They don't have to be the same current rating, but the current will be limited by the smaller current rating (usually -5v).

If this is exceeded, some power supplies will trip their overcurrent limit. However, some sense overcurrent only on +5v and +12v, and some sense it only on the primary side, so you may be able to exceed the limits on the -5v. There's a physical limit to this, governed by the windings, diodes and capacitors, but approx. 1A to 2A should typically be OK.

08-24-2001 12:19:41

New MessageRE:Cheap & easy 17v power (modified 0 times) Millennium_Falcon
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Well.....somewhere in the archives is a note where I describe the inverter supply I got from a surplus house and converted to put out 19V from an input of 12V. It fits inside my case so the entire thing has full voltages from a single 12V input.

You can see some pictures of the setup and some description at my web site:

http://sv-millennium-falcon.com

If you need more, post a note to me off this list. I dont check this list for messages very often. But on my web site there is a button you can click to email to me.

08-26-2001 07:29:18

New MessageRE:Cheap & easy 17v power (modified 0 times) *SF*
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http://www.linux-hacker.net/cgi-bin/UltraBoard/UltraBoard.pl?Action=ShowPost&Board=technical&Post=2119
08-26-2001 08:14:30

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