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12V/5V DC Power Supply Needed

 
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AFryia




Joined: 09 Mar 2006
Posts: 956
Location: S.E. Michigan VPH-G70Q


PostLink    Posted: Sun Apr 13, 2008 2:01 am    Post subject: 12V/5V DC Power Supply Needed Reply with quote


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Anyone know of a relatively cheap AC/DC adapter that has a 12VDC and 5VDC output?

I have a fan control kit with thermal sensing and it requires a PC ATX power cable 5/12VDC.

I plan on using it to ventilate and monitor my hush box so I don't have access to a PC power supply.
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26690
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Sun Apr 13, 2008 2:07 am    Post subject: Re: 12V/5V DC Power Supply Needed Reply with quote

AFryia wrote:
Anyone know of a relatively cheap AC/DC adapter that has a 12VDC and 5VDC output?

I have a fan control kit with thermal sensing and it requires a PC ATX power cable 5/12VDC.

I plan on using it to ventilate and monitor my hush box so I don't have access to a PC power supply.


Why not just use a PC power supply? You can get a cheap one and jumper the correct pin's to make it start up.

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AFryia




Joined: 09 Mar 2006
Posts: 956
Location: S.E. Michigan VPH-G70Q


PostLink    Posted: Sun Apr 13, 2008 4:00 pm    Post subject: Reply with quote

I thought about that.

I don't need that much power and I was concered about the size of a ATX power supply and fan noise. Also I want it inside the hushbox. I would be concerned that the PSU might overheat with it's fan recirculating the PJ hot exhaust.

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Joust




Joined: 05 May 2006
Posts: 2431
Location: Almonte, Ontario, Canada

TV/Projector: Marquee 8501LC


PostLink    Posted: Sun Apr 13, 2008 4:17 pm    Post subject: Reply with quote

you will have the same problem with any power supply.
AT power supplies are dirt cheap. you could mount it such that it sucks the excess heat from your box.

an at supply could use a relay switched on with an internal voltage from your PJ.

or alternatively there are lots of smaller block style Power supplies available.
try computer recyclers and surplus shops.
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Curt Palme
CRT Tech



Joined: 08 Mar 2006
Posts: 24296
Location: Langley, BC

TV/Projector: All of them!


PostLink    Posted: Sun Apr 13, 2008 4:55 pm    Post subject: Reply with quote

I think the DVDO power supplies are 6 volt at 4 amps. THey are $25 from DVDO. Little wall wart.

But I agree with everyone else, get a computer SMPS. Cheaper, and fairly quiet..
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AnalogRocks
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Joined: 08 Mar 2006
Posts: 26690
Location: Toronto, Ontario, Canada

TV/Projector: Sony 1252Q, AMPRO 4000G


PostLink    Posted: Sun Apr 13, 2008 6:14 pm    Post subject: Reply with quote

AFryia wrote:
I thought about that.

I don't need that much power and I was concered about the size of a ATX power supply and fan noise. Also I want it inside the hushbox. I would be concerned that the PSU might overheat with it's fan recirculating the PJ hot exhaust.


You could get one from Shuttle PC. Their's are small and fairly quiet. Or you could get a whisper quiet one from many manufacturers

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Heywood Jablome




Joined: 12 Mar 2006
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PostLink    Posted: Thu Apr 24, 2008 7:31 pm    Post subject: Reply with quote

Here ya go, seven bucks: http://www.mpja.com/prodinfo.asp?number=15955+PS
Also look at their open frame supplies if your enclosure allows it.

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AFryia




Joined: 09 Mar 2006
Posts: 956
Location: S.E. Michigan VPH-G70Q


PostLink    Posted: Thu Apr 24, 2008 10:17 pm    Post subject: Reply with quote

Heywood Jablome wrote:
Here ya go, seven bucks: http://www.mpja.com/prodinfo.asp?number=15955+PS
Also look at their open frame supplies if your enclosure allows it.


Good prices but there is a 15$ minimum. I can't hit that even if I order fans through them.

I found a PS on another site. I think I'm going that route.
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jkruger




Joined: 24 Oct 2007
Posts: 2435
Location: Carlsbad, CA


PostLink    Posted: Thu Apr 24, 2008 10:24 pm    Post subject: Reply with quote

Most secondhand/thrift stores have several of these sitting on a shelf. Used on lots of computer related accesories, most of them have cords that can be altered to suit whatever you want. Most have +12v, +5v, -5v, grd. Usually under 2-3 bucks.
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