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My "RDX" build. Sometimes it takes very little to set off an extensive mod. - Page 3

post #21 of 52
I keep looking for the upvote arrow, but it is nowhere to be found.

Amazing build though, it looks great.
    
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post #22 of 52
Thread Starter 
I actually had to use a fake company name though I may not have needed to. I played it safe and social engineered it. I don't think they would turn down a sale but these were technically samples. I also consulted with their app engineers (they say its free so I think I am ok, I am sure they would be really reluctant if some random folks started calling them). They cater to higher volume sales typically so instead of waiting 6 weeks for modules of my part number spec I got whatever was 'in stock' IE whatever they had on hand. The lowest spec units fit my needs, this stuff sees a lot of really extreme applications.

As for guides, I don't think it would be a good idea to walk people through this process, as it stands the supply is extremely dangerous, extremely expensive, and extremely specialized. Turning on this thing for the first time is always a VERY scary thing, and I run continuity checks all over the board ahead of time... still gets me nervous... AC lines are no joke! At any rate here is a schematic of what I have on the board.


Edited by oh_bother - 3/10/11 at 8:02am
post #23 of 52
Cool. I'm a total electronics noob so I won't be attempting it any time soon, but I have a fascination with packing as much power into as small a space as possible so I'm always on the lookout for new ideas to that end.
post #24 of 52
Thread Starter 
If I could somehow market this, the price could never be reasonable though. I would have to add all kinds of current rush limiting and safety circuitry, not to mention almost a totally independent 5v line to allow the power supply to "turn off" its a shame really cause this stuff is so incredibly dense in terms of watts/footprint. Id love to bang out a PCB design for this thing.
Edited by oh_bother - 3/10/11 at 11:00am
post #25 of 52
Quote:
Originally Posted by oh_bother View Post
If I could somehow market this, the price could never be reasonable though. I would have to add all kinds of current rush limiting and safety circuitry, not to mention almost a totally independent 5v line to allow the power supply to "turn off" its a shame really cause this stuff is so incredibly dense in terms of watts/footprint. Id love to bang out a PCB design for this thing.
Honestly, despite your design being very dense and using a lot of expensive gear, I imagine you could use simply the AC/DC design of, say, Seasonic's latest X series PSUs and trim things up a lot. Seasonic has already moved the 3.3/5V converters to their separate PCB on the modular connector anyway (as I understand it).

    
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post #26 of 52
Thread Starter 
Do you mean reverse engineering their design? I think with the current layout it would be really tough to cram all those components in (their design looks really dense!). I would have to spec out the smallest surface mount components I could find, and it looks like they may have already done that and wound up with a moderately sized PCB.

All I am saying is that it would be nice to be able to have something to 5V only conversion while the computer is off, and that if there is a short across the 12v lines I get no protection.

I could probably fit it all into a moderatley sized power brick, would need a fan though. Or I could cram a huge number of watts into a normal power supply. hrm..
Edited by oh_bother - 3/10/11 at 12:02pm
post #27 of 52
w-t-f-p-p-l(redditor), this is amazing!

Upgoat to you!
post #28 of 52
Quote:
Originally Posted by oh_bother View Post
Do you mean reverse engineering their design? I think with the current layout it would be really tough to cram all those components in (their design looks really dense!). I would have to spec out the smallest surface mount components I could find, and it looks like they may have already done that and wound up with a moderately sized PCB.

All I am saying is that it would be nice to be able to have something to 5V only conversion while the computer is off, and that if there is a short across the 12v lines I get no protection.

I could probably fit it all into a moderatley sized power brick, would need a fan though. Or I could cram a huge number of watts into a normal power supply. hrm..
Basically,

How much room do you have under that optical drive?

Reuse and rearrange their components to fit. You shouldn't have a problem finding a heatsink to stick the hot parts on.

This is a really short design, if you discount the tall heatsink used and the modular connector.
Edited by RonindeBeatrice - 3/10/11 at 12:21pm
    
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post #29 of 52
Thread Starter 
As a point of reference, this filtered AC input connector: link is as wide as my case is tall. (if you imagine the filtered one has tabs)
post #30 of 52
Quote:
Originally Posted by oh_bother View Post
As a point of reference, this filtered AC input connector: link is as wide as my case is tall. (if you imagine the filtered one has tabs)
Heh, yeah I get carried away pondering how to fit more in less.

I suppose you could piggy back a couple of bricks together. The original XBox 360 PSU put out >200W of 12V DC (just sayin').
    
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