Actually a well designed PC PSU can be used, subject to some mods, refinements and conditions.
1. Reputable brand thats not with missing parts inside (EMI filter components)
2. Remove parts of the circuit that output other misc voltages that you'd not use. You've to know the PSU circuitry of course and what to remove.
3. Change the DC output cables to a pair of thicker gauge ones.
4. Beef up the DC output circuitry with better parts and values.
There's other things you can do, afterall if the PSU is already FOC, its all to your savings.
I'm confident yoru FOC PSU after modding can likely outperform the Meanwell PSU, except the PC PSU is more bulky and there's a fan too.
Your choice.


This post has been edited by bsl555: Jan 3 2009, 01:42 AM

too much work la bsl

Heh!.. need I say if you're always on the look out for the fun factor, nothing is really too much work.
Anyone got a BUSTED but BRANDED Coolermaster, Antec, Corsair 500W PSU to give me?.. I'll gladly accept it and of course I mod it and its for MY keeps??...

This post has been edited by bsl555: Jan 3 2009, 01:56 AM

Hehe.. very true..
Too bad I do not have any.. just 'generic' ones that are busted.. those branded ones really last a long time!

bsl, you want 'em? One is 535W and the one is 460W
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Enermax. Are they 'good'?

Can! can!. I hope it won't be a daunting task to revive them first.

probably "decent"..taiwan/china made. not same level as the american brands (which is also made in china) due to the BOM.
I believe BSL wants the PSU to be equipped with branded subcomponents used inside..
of which the BOM (bill of materials) would be made up of branded manufacturers..

'additional' work to replace those also by bsl...

Nice, Enermax is good but their fan is noisy. My friend use FMA-II and its bloody noisy. I use cheap PSU to power my T-amp but because the power usage is low, I run it totally passive

PSU's are mostly run of the mill stuff and perhaps middle quality at best. Just that the current output is adequate for current PC requirements. You're not going to find usable resistors, IC's, transistors or the capacitors which are mostly sourced from China and brands you've not heard of. They're built to borderline architecture and will fail in good time.
You want really good parts from PC related peripherals, gut your CRT monitor, especially the older models.

This post has been edited by bsl555: Jan 3 2009, 11:40 PM

I was just stressing that from US branded PSU or UPS (like APC brand for example) at least they are using things Evox, AVX, Nichicon or Dale vishay i.e branded (doesn't mean their MIL spec parts range or audiophile grade).. whereas in normal taiwan/china brands PSU, most likely using local china grade components rather than export grade.


as for me, if I need good parts I get them for free.. no need to salvage,. unless it's EOL. (end of life)

ar188,
Not all of us are lucky to be in your position!

soon you will be.. (getting them for free also)

"one good deed deserves another" one samaritan said to me earlier today.. cheers!

so will try to share some of the JP style pots and Large Ecaps with you guys here.... (at least these I know they will sure give few extra pcs free when I load in my main orders hehe)

jazzy, will PM you E-cap datasheet for you to choose.

hehehe.. thanks ar188!

hokay.. will be waiting for that!

just wondering when you're gonna start to diy?

wei.. liddat called cheating..

wah, if every component in the project, I get free 5-10pcs liddat sure got surplus to make a few free boards.??

cheating? where? :

free boards? possible!

surely I may need at most 2 units if running mono blocks.. the excess 3-5pcs excess components leh?
BTW, I found the "aunty" to solder my future boards.. I met the person this evening..

This post has been edited by ar188: Jan 4 2009, 01:05 AM

good for you! aunty have own soldering iron/gun?

should have kua, hakko brand I think.

BTW I met the so called "aunty" around 5+pm today to pass some LEDs..