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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sun Apr 13, 2008 2:01 am Post subject: 12V/5V DC Power Supply Needed |
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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
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Apr 13, 2008 2:07 am Post subject: Re: 12V/5V DC Power Supply Needed |
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| 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: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Sun Apr 13, 2008 4:00 pm Post subject: |
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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: 2429
Location: Almonte, Ontario, Canada
TV/Projector: Marquee 8501LC
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| Posted: Sun Apr 13, 2008 4:17 pm Post subject: |
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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: 24396
Location: Langley, BC
TV/Projector: All of them!
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| Posted: Sun Apr 13, 2008 4:55 pm Post subject: |
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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
Forum Moderator
Joined: 08 Mar 2006
Posts: 26706
Location: Toronto, Ontario, Canada
TV/Projector: Sony 1252Q, AMPRO 4000G
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| Posted: Sun Apr 13, 2008 6:14 pm Post subject: |
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| 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
Posts: 1548
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| Posted: Thu Apr 24, 2008 7:31 pm Post subject: |
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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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"Those countries which lag behind in industry, in the application of mechanics and technical chemistry, in the careful selection and utilization of natural products, where the respect for such activities does not permeate all classes of society, will unfailingly decline in prosperity. They will sink faster when neighbor states, with an energetic exchange between science and industry, go forward with renewed vitality."
-- Baron Alexander von Humboldt: 1769-1859
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AFryia
Joined: 09 Mar 2006
Posts: 965
Location: S.E. Michigan VPH-G70Q
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| Posted: Thu Apr 24, 2008 10:17 pm Post subject: |
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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
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| Posted: Thu Apr 24, 2008 10:24 pm Post subject: |
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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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