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19 October 2008, 01:24
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#1 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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Small fanless PSU with +5V 2.5A, +12V 1.0A, -12V 0.1A?
Like a PicoPSU with -12V? Anyone have tips on where to buy?
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19 October 2008, 05:42
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#2 |
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I hate potatos and shirts
Join Date: Oct 2007
Location: Sao Leopoldo / Brazil
Age: 58
Posts: 3,482
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Ebay...
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19 October 2008, 19:58
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#3 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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Seems picopsu has -12V! And also 3.3V etc. So I need a kit, will look. And don't say eBay
 Kits are like £48, which means I can buy them from a webshop in Sweden instead 
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20 October 2008, 03:24
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#4 |
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Ya' like it Retr0?
Join Date: Jul 2005
Location: United Kingdom
Age: 49
Posts: 9,768
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remember, the plug pack you choose will determin the ampere output as well..
if you get a 10amp plug pack with a pico120 watt you will get 10 amps on the +12 and around 4.5 amps on the +5 (very nice for an upgradded miggy) however if you get a lesser 60watt plug pack you will be struggling to push a reliable 2.5amps on the +5 (it seemed to settle around the 2.1 with load *floppy/apollo030*) this is what I found with two different plug packs on my 120watt Pico PSU |
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20 October 2008, 15:25
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#5 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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Got my Joytech screen. It comes with a 12V to 8.5V adapter, but hmm, would be nice with a direct 8.5V. I guess I'll put the pcb in the adapter inside the Amiga case. The + and - were clearly marked on the pcb, so should be easy to pull two wires from the power input connector.
Next step, getting the pinout for the "multi input / av adapter" db25 female connector. Wish me luck :P |
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21 October 2008, 17:16
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#6 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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Looking at a 90W psu with an 80W adapter for €75 here in Sweden. Will do I guess?
My A600 runs fine with a feather brick, IIRC +5V/2.5A, +12V/0.5A, -12V/0.1A. But I guess the -12V amps isn't critical? Only used by ...audio DAC? While floppy can temporarily hog a lot of current? Rig: A600, russian 8MB expansion, 1MB chipram+clock, ps/2 touchpad :P, buffered IDE interface+CF adapter+CF card, no extradrives or harddisks. Plus ofc the screen, the 12VDC-8.5VDC converter says max 4.5A, but I doubt the screen draws that much. Possibly 1A, since that's the spec of my 13.3" LCD tv. Last edited by Photon; 21 October 2008 at 17:24. |
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22 October 2008, 13:02
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#7 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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I can confirm that my +12V 1A cannot power the screen, at least not via the 12V-to-8.5V converter.
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22 October 2008, 18:25
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#8 |
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Moderator
Join Date: Nov 2004
Location: Eksjö / Sweden
Posts: 5,602
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I ordered article 8035 from mini-pc.se - 120W picopsu with 100W external. I'll be damned if I run out of juice, even if the floppy should start its motor (zomg!)
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