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 PSU to Lab Power Supply, With LED fan and acrylic cover.

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TSpmmonkey
post Jun 25 2007, 10:22 PM, updated 19y ago

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It's my bro's power supply unit which he intend to convert it into a lab power supply in order to power up fans and charge rc car batteries.
(This project was completed along with my fan controller, he was just too lazy to post it up)

So got all the items from Jalan Pasar.
5x 3way binding posts
10ohm 10W resistor
on/off switch
a LED with resistor.
and some heat shrink.

Since photobucket is so f-ed up, will update on pics later.

And reference was from here:
http://web2.murraystate.edu/andy.batts/ps/powersupply.htm

This post has been edited by pmmonkey: Jun 25 2007, 10:23 PM
TSpmmonkey
post Jun 25 2007, 10:24 PM

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Enlight PSU
user posted image

So opened up the PSU and look at what we found inside.
user posted image

Took out everything, brushed off years of dust. (Ignore those rams on the floor)
user posted image

Since the grille isn't nice, that part was cut off and to be replace with a shiny grille.
user posted image

LOL... my bro cutting.
user posted image

The metal was really really hard. He had a hard time sawing off that little piece.
user posted image

And the saw dust.
user posted image

This post has been edited by pmmonkey: Jun 25 2007, 11:16 PM
TSpmmonkey
post Jun 25 2007, 10:24 PM

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=( Missed out alot of pics in the process. Was busy doing everything and forgotten about pics.

My bro did all the hard job like drilling and cutting. I helped out with the more delicate parts like acrylic and wirings.

Like mentioned, the metal was very hard, thus hard to drill. Even harder when there'll be 5 holes to be completed.

Cover was sprayed a few layers of black followed by another few layers of clear.

Then it's time for the wiring part. Bundled all wires according to the colors, cut off the negatives which will not be used, add in all other components according to the reference (see first post)

Before putting back everything, we tried to power up the PSU. Fan didn't move, no power. PHAILED!!

This post has been edited by pmmonkey: Jun 25 2007, 11:25 PM
TSpmmonkey
post Jun 25 2007, 10:25 PM

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Turns out that the binding post was somehow joint to the cover... meaning all 12v, 5v, and 3.3v were connected in a way. So had to take out all binding post, insulate them with tapes, continue the hard work of tying them all back.

Luckily it works this time. And so, work is almost done. (Realised the last binding post is a bit tilted?)
user posted image

Then there's a hole where initially the wires come out from, it was covered with a small piece of acrylic sprayed black and the switch and led was placed there.
Added some knobs at the bottom to prevent scratches on that surface.
user posted image

And the corners, they hold really firmly considering there aren't screws to hold them tight. So there you go, a lab power supply...like the one used in school labs, only that this looks cooler with the blue fan and acrylic cover.

This post has been edited by pmmonkey: Jun 25 2007, 11:30 PM
wevilli
post Jun 25 2007, 10:55 PM

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hymnn... you might need this baby ... if you like RC so much....
lohwenli
post Jun 26 2007, 02:01 AM

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Nice..got the same PSU as you too..just got it from beginner just last week or so..high chance it will meet the same fate..hehe..just that I'm not gonna pimp it up to look nice. Lazy and also quite busy..semester starting..also rushing through my first major casemod..worklog coming soon..


Added on June 26, 2007, 2:36 amOh yeah, did you add resistors to the rails to give a minimum load? Most PSUs have a minimum load requirement, below which the voltage regulation will be pretty bad, or if you're unlucky, might damage the PSU.

http://www.pcguide.com/ref/power/sup/output_Loading.htm

This post has been edited by lohwenli: Jun 26 2007, 02:36 AM
sniper on the roof
post Jun 26 2007, 06:47 PM

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@meno
post Jun 26 2007, 07:45 PM

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QUOTE(lohwenli @ Jun 26 2007, 02:01 AM)
Nice..got the same PSU as you too..just got it from beginner just last week or so..high chance it will meet the same fate..hehe..just that I'm not gonna pimp it up to look nice. Lazy and also quite busy..semester starting..also rushing through my first major casemod..worklog coming soon..


Added on June 26, 2007, 2:36 amOh yeah, did you add resistors to the rails to give a minimum load? Most PSUs have a minimum load requirement, below which the voltage regulation will be pretty bad, or if you're unlucky, might damage the PSU.

http://www.pcguide.com/ref/power/sup/output_Loading.htm
*
Oh, i have one too which orginally came with my Enlight casing.
But mine is of an older revision, it's slightly different from this one, my grills at the bottom is not honeycomb.

Btw Jaryl, you might be able to ask Pmmonkey to do the bling bling stuff for you if you're too busy, she's coming to USM main campus when skool re-opens.

FCUK89
post Jun 27 2007, 09:33 AM

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Er..sorry, but what is Lab Power Supply? It is used for?
lohwenli
post Jun 29 2007, 03:39 AM

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You can use it to power just about anything that uses 12v, 5v, 3v, even if its a heavy load. And it will even support light loads of up to 24v using several interesting combinations, see link for details.

http://forum.lowyat.net/index.php?showtopi...dpost&p=9141404

 

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