Power supply build quality pictorial. part 2

[etnietering]

Re: Power supply build quality pictorial. part 2

Well I was able to get the main transformer out, and under it it says:
KY-2102 REV: 1.7-1 20Z
and has a goofy looking symbol that looks kind of like a sideways S in a circle with 2 slashes through it

[POM_MJ]

Re: Power supply build quality pictorial. part 2

Here is another one of mine, NMB 460W model GM460WTXW01SSV need re-wired to ATX.
Caps on secondary side are nichicon LXZ

[etnietering]

Re: Power supply build quality pictorial. part 2

Well, I'm going to stray from my norm of only posting junk...I just today got 2 of these: Compaq Model DPS-450-CB-1 A, although according to this thread the real maker is delta. And I believe it! This thing is built like a tank! And it was only 10 bucks on ebay Caps are all NCC with a few Rubycon thrown in, and three lonely TAICONs...Why TAICONs in such an overbuilt high quality piece of equipment? you might ask...well, I asked too, and I haven't gotten an answer yet.

Anyway, on to the pictures!

Here is the label - for once it's not a big fat lie!


Here's the view in from the grill. I've never seen one this stuffed!


After quite a bit of fiddling, I was able to get it apart. Here's an overall shot of the inside. Under the black sheet is a gigantic heatsink....I believe it's for the APFC circuitry. The primary filter cap is a huge NCC 470uF @ 450V monster.


Here's the input filter. It's fused on both the hot and neutral lines. It has one huge joint coil, and two seperate coils, two HUGE Okaya X caps (1.0 and 2.2uF), and 2 Y caps. I believe there's more filtering by the power outlet, because it sticks out pretty far into the unit. The green thing in the heatshrink is either the Current Inrush Limiter, or a MOV. It's labelled Z1 (Z2 is missing), and I haven't taken the board out to see what it actually connects to. The big white blocks in the back are power resistors, and I have no idea what the ones on the TO-220 diodes are.


Here's the secondary side filtering....I have more detailed pictures of each rail, but the 5v and 3.3v have NCC LXJ and the 12v has Rubycon YXF.


Here's the 12v rectification. It's difficult to read the markings on the diodes, but I believe there are 2x20A and 3x40A, for a total of 160A filtering capacitor, and the rail is rated for 25A! Caps are 4x Rubycon YXF 2200uF @ 16v.


And here we have the 5v rectifiers. I know these three are for the 5v, and there are others that may or may not be, I can't tell without taking the board out. They are rated for 30A each, so that's a total of 120A on the 5v line (but maybe more), and the rail is rated at 34A. Overkill much? Jeez! Caps are 4x NCC LXJ 3300uF @ 10v.


This is the 3.3v rectification stage. If I'm correct, there are SEVEN 40A schottkys on this rail, for a total of 280A! For a 40! rail! The little guy in there is the 7912 reg for the -12v. Caps are 4x NCC 4700uF @ 6.3v. And I thought the other rails were obnoxiously overbuilt


Don't have a picture, but the primary switchers (at least the one I can see) are IRFP460LC's, MOSFETs rated at 500v 20A continuous/80A pulsed. The main transformer is I believe size 42. Some of the jumpers in this thing aren't wire, they're more like a metal plate. I must say, I'm quite impressed with my first Delta PSU

[370forlife]

Re: Power supply build quality pictorial. part 2

Follow the traces from the rectifiers to see what caps and what wires they end up to. That will give you an idea of what they are for.

[370forlife]

Re: Power supply build quality pictorial. part 2

Here is another one of mine, NMB 460W model GM460WTXW01SSV need re-wired to ATX.
Caps on secondary side are nichicon LXZ

That is one sexy power supply.

[etnietering]

Re: Power supply build quality pictorial. part 2

Well I was able to get out the primary side board. The green thing is a MOV. The current inrush limiter is buried way way back in there (I was able to get that heatsink off too). I also found the temp sensor - it's on the PFC heatsink. I cleaned off both heatsink faces real nice and I'm going to artic silver them back together

[ratdude747]

Re: Power supply build quality pictorial. part 2

remind me to post my compaq branded delta sometime. it is also built like a tank... stuffed with parts.

dps= delta, hp=hipro

[370forlife]

Re: Power supply build quality pictorial. part 2

Don't forget NPS - newton, or basically delta but always with rubycon and UCC caps.

[ratdude747]

Re: Power supply build quality pictorial. part 2

ive never seen a newton one before. they ARE nice. most oem units i see are delta, hipro, or bestec

[370forlife]

Re: Power supply build quality pictorial. part 2

ive never seen a newton one before. they ARE nice. most oem units i see are delta, hipro, or bestec

They're simply delta's, as newton is owned by delta, but they always use premium caps.

[POM_MJ]

Re: Power supply build quality pictorial. part 2

Here is another one of mine, NMB 460W model GM460WTXW01SSV need re-wired to ATX.
Caps on secondary side are nichicon LXZ

Sorry, wrong Caps name. they're chemicon LXZ

[momaka]

Re: Power supply build quality pictorial. part 2

Don't forget NPS - newton, or basically delta but always with rubycon and UCC caps.

Not always. The one in my Dell Dimension has Ltec on the secondary. Primaries are Nichicon, though. 5vsb might have been Rubycon, but I don't remember too well.

By the way, that NMB and Delta above are awesome. Secondary sides on both have so much silicon that I wouldn't be surprised if they are able to jump start a car or qualify for a welder .

[370forlife]

Re: Power supply build quality pictorial. part 2

Not always. The one in my Dell Dimension has Ltec on the secondary. Primaries are Nichicon, though. 5vsb might have been Rubycon, but I don't remember too well.

By the way, that NMB and Delta above are awesome. Secondary sides on both have so much silicon that I wouldn't be surprised if they are able to jump start a car or qualify for a welder .

Kind of ironic, I was looking on leadman's website, and they actually build car battery chargers

That NMB is strange, no transformer. I'm not sure, but I think it has 4 small transformers, 1 for each rail (with one being both -12v and -5v or something like that,)

[POM_MJ]

Re: Power supply build quality pictorial. part 2

Kind of ironic, I was looking on leadman's website, and they actually build car battery chargers

That NMB is strange, no transformer. I'm not sure, but I think it has 4 small transformers, 1 for each rail (with one being both -12v and -5v or something like that,)

The big one transformer is lower left corner of this picture, primary side connect to 5 pins connecter. its very strange transformer.

[POM_MJ]

Re: Power supply build quality pictorial. part 2

ENlight VP-300

I think it's same design with DTK PTP-3007 from this post
https://www.badcaps.net/forum/showpo...&postcount=178
only one thing diiferent is it has 2 fans.

Caps on secondary side are very leak cause damage to 5Vsb circuit C5027, FOD817C opto, C945.



I replace them with SAMXON GF-series and SANYO WX-series.

[370forlife]

Re: Power supply build quality pictorial. part 2

The big one transformer is lower left corner of this picture, primary side connect to 5 pins connecter. its very strange transformer.

goofy design, but has independently regulated 12v rails.

[Gianni]

Re: Power supply build quality pictorial. part 2

JJ-460PPSA: a friend gave me this PSU because he had problem on the PC and he suspects the PSU is the culprit.

It has 2 fan, a separate over current limitation board dedicated to 12V and 5V.
It looks good, has long cables and passive PFC.
The caps are CapXon, they are not bulging or leaking.

Ciao
Gianni

[370forlife]

Re: Power supply build quality pictorial. part 2

Topower

[POM_MJ]

Re: Power supply build quality pictorial. part 2

Super Flower SF-400P12 400W





Here are caps on primary side, Fuhjyyu.


Soldering look not so good.


used SBL2040CT for 3.3V, SBL3040PT for 5.0V and F16C20C for 12.0V.


Caps on secondary side has printed PCE-TUR and VENT on them.

[370forlife]

Re: Power supply build quality pictorial. part 2

Wow, same capacity that my yuelin ylp-013 had on the secondary side. 12v is rated at 20A, with a 16A diode.

Superflower is better than that now though.