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-   -   How to build a $20 47A power supply (https://www.rc-monster.com/forum/showthread.php?t=27554)

snellemin 08.09.2010 11:25 AM

Someone from the States could bring it to Holland en dan kan jij het dan ophalen.

Nard Cox 08.09.2010 12:27 PM

Sounds like a good plan, wanneer kom je naar Nederland?

Just found this used one, $41 shipped to the Netherlands. The prices they ask are suprisingly far apart. I found a Dutch shop who charged $250 for this PSU.

Byte 08.09.2010 12:56 PM

Quote:

Originally Posted by Nard Cox (Post 376170)
OK, I've ordered myself a new Hyperion EOS0615i Duo3 for 170 euro / $225 shipped (not a bad price, not even compared to US prices).

So I'm looking into a PSU again and I typed this model into ebay.de and voila.
But it's more than four times as expensive and it's a USED model.
$65 incl. shipping to NL and $50 to Germany.

So if anyone has some cheaper suggestions let me know.


Nardos! You bought yourself a Hyperion :oh: Nice!

snellemin 08.09.2010 12:58 PM

Mijn schoonmoeder is hier, maar ze gaat pas eind van deze maand terug. Ze woont in Breda.

$41 isn't so bad though, compared to some power supply's that get sold here for 150 http://www.amainhobbies.com/product_...-138V-40A-520W

Nard Cox 08.09.2010 02:36 PM

Byte, yeah I couldn't resists. Charging 4S packs with 50W takes ages ...

snellemin, ben je van NL naar Houston verhuisd?

I'll keep it in mind, altough it's a 250km drive for me which isn't free either. Think I will order 2 or 3 ... one for spare and another for selling.

snellemin 08.09.2010 02:43 PM

Naah, ik ben een Surinamer. 250km is quite a distance for sure. And gas ain't cheap either.

VZW 08.09.2010 03:01 PM

How is this deal?
CLICK These are the right ones right?

VZW 08.09.2010 03:09 PM

Okay just realized that it is the GX I need to be looking at. The ones I linked to are of okay wattage but I don't know that they will be as easily converted.

Nard Cox 08.11.2010 08:08 AM

Yesterday evening I bought myself 3 of these, they shipped this morning.

They look pretty identical to the one in this thread BUT I've just found that the one in this topic has model nr : 321632-001 and the ones I've bought are : 338022-001. Hopefully it will work *fingers crossed*. I will let you know :)

Bmr4life 08.13.2010 02:12 PM

Nice. I did the same with two old server power supplies I got free from work. They're only 32a, but I only need one to get max wattage to my 208B.

Nard Cox 08.13.2010 02:35 PM

Quote:

Originally Posted by kazuaki (Post 375604)
The reason I can leave the jumper in place is because I added a power switch to the input side.

http://www.nuibe.com/rc/ps_switch.jpg

So far, it seems to work well...

Any pics on how you did that?

I received my three PSU's today. All three work flawlessly. :)

How do you shut down the PSU, just by pulling out the power cable? The fan makes a noice that is freaky loud ... definately need a solution for that. The PSU itself is also WAY smaller than I expected, even when I knew the dimensions...

Will post a pic tomorrow, going to solder some leads and stuff now. Thanks for the tip, this saved me a nice buck.

Metallover 08.16.2010 10:15 PM

I got mine up and running last week... Thing sounds like a hair dryer! Prank your roommate by putting it in the bathroom for awhile!:lol:

It would probably be possible to open it up a little bit and use multiple quieter fans.. I might have a go at it.

Thanks for the post snellemin!!

Nard Cox 08.17.2010 04:00 AM

The three victims:

http://lh4.ggpht.com/_oXx8nzDDQME/TG...A/P1060917.JPG

Opening it up:
http://lh4.ggpht.com/_oXx8nzDDQME/TG...4/P1060922.JPG
http://lh6.ggpht.com/_oXx8nzDDQME/TG...I/P1060923.JPG

The noisemaker:
http://lh5.ggpht.com/_oXx8nzDDQME/TG...0/P1060924.JPG

Possible solution?
http://lh4.ggpht.com/_oXx8nzDDQME/TG...c/P1060925.JPG



I tested the PSU's shortly with my EOS0615i Duo2. When charging a 4S 5A pack with 5A/1C the voltage is at ~12.35, when I put it at 10A/2C the voltage drops down to ~12.17v and I will only charge at ~9.75A, any ideas? I saw snellemin's stay at 12.8v @ 25.4A:

Quote:

Originally Posted by snellemin (Post 373341)
Naah, I haven't bothered opening it up. I wanted something simple and cheap. A regular ATX is too much work compared to this PSU. I will ask at work if boosting the voltage is even feasible with this PSU. I have no schematic of what the other pins do. I was pulling 25A last nite out of the PSU and the charger stated 12.8V@25A. When I get a few more, I'll open one up.

http://i189.photobucket.com/albums/z...8/DSCF0257.jpg


snellemin 08.17.2010 04:06 PM

Mine might be a fluke man. As long as it works right.

Nard Cox 08.17.2010 04:17 PM

True, but I though it was strange that it only charged at 9.75A and not 10A ... Oh well I will empty some packs soon and try charging two 4s 5a both at 10A/2C.

mistercrash 08.19.2010 02:33 PM

Pardon me if I seem ignorant, but is there any way to use those power supplies to build something as powerful as this.

http://www.rivergatedist.com/bulldog_90.htm

I had a Rivergate PS years ago and I loved it. It was a 30 amp model which was perfect at the time. But although they are really good and powerful from what I remember, they are way too pricey.

snellemin 08.19.2010 05:00 PM

Sure you can, but you will have to wire them up in series, which is dangerous if you don't know what you are doing.

ANGRY-ALIEN 08.19.2010 05:33 PM

Quote:

Originally Posted by mistercrash (Post 377370)
Pardon me if I seem ignorant, but is there any way to use those power supplies to build something as powerful as this.

http://www.rivergatedist.com/bulldog_90.htm

I had a Rivergate PS years ago and I loved it. It was a 30 amp model which was perfect at the time. But although they are really good and powerful from what I remember, they are way too pricey.

You can also look at one of these - HP DL580/ML570 G3 Power Supply 1300W Watts Power Supply


Photos below taken from rcgroups:

http://static.rcgroups.com/forums/at...g?d=1235262571



http://static.rcgroups.com/forums/at...g?d=1235262571



Alien

mistercrash 08.19.2010 09:13 PM

Quote:

Originally Posted by snellemin (Post 377398)
Sure you can, but you will have to wire them up in series, which is dangerous if you don't know what you are doing.

I don't know what I'm doing so I won't go that route :lol:

stampy 08.20.2010 10:43 AM

I was thinking of wiring 2 of the 47amp power supply's up. I'm no electrical engineer, so how would your house hold 120 volt circuit handle almost 100amps of power? arnt most circuits in a house only 15amps?

whitrzac 08.20.2010 07:29 PM

120v at 15amps is 1800 watts
12v at 100amps is only 1200 watts
120v at 10amps is 1200 watts..


at 100 amps, the wires might start to twitch when you turn it on...

florianz 08.28.2010 03:44 PM

great stuff!
I've converted a used 500w CP-Power-Supply (very cheap at ebay, sufficient for me), wich works fine. There's no need to spend so much money for a overpriced power supply. just go for used "brand"-stuff and you'll be ok, I wouldn't trust the no-name.

brushlessboy16 09.01.2010 11:30 PM

Just bought 2 of these guys! Gonna wire them in parallel for 800 watts, Power all my chargers or My Amp and subs in my dorm room....:lol:

Couldnt pass up a dollar a peice! was 17 dollars for 2, shipped. Get em while there hot

Nard Cox 09.02.2010 02:23 AM

OMG .. Only in America ... :lol:

brushlessboy16 09.02.2010 08:30 AM

Quote:

Originally Posted by Nard Cox (Post 378908)
OMG .. Only in America ... :lol:

W00t!:party::party:

brushlessboy16 09.07.2010 11:29 AM

http://i152.photobucket.com/albums/s...00907-1035.jpg
http://i152.photobucket.com/albums/s...00907-1035.jpg

ANGRY-ALIEN 09.07.2010 11:45 AM

Good find man :yes:... just be careful when wiring them in parallel... keep the cases separated and hands off during operation...


Alien

brushlessboy16 09.07.2010 05:04 PM

Will do Alien, Progress pics. Got them Wired up, and all the startup wiring done so the thing actually arms...
Great guide for the HP #194989 and HP #280127 can be found here:

CLICK ME
Have yet to put a load on it, or plug it in yet, need connectors to go to my load of choice (700watt amp and dual 8in subs) :lol:

Progress Pics:

Grounding the (PS_enable), (PS_interlock) and (PS_kill) signal pins
http://i152.photobucket.com/albums/s...s/PICT0181.jpg
http://i152.photobucket.com/albums/s...s/PICT0182.jpg

12Ga Power Leads attached, Negatives on the outside, large 12v rail in the center
http://i152.photobucket.com/albums/s...s/PICT0186.jpg
http://i152.photobucket.com/albums/s...s/PICT0185.jpg


Ran the 2nd (PSU_Interlock_2) Pin to +12v

http://i152.photobucket.com/albums/s...s/PICT0193.jpg
http://i152.photobucket.com/albums/s...s/PICT0192.jpg
http://i152.photobucket.com/albums/s...s/PICT0191.jpg
http://i152.photobucket.com/albums/s...s/PICT0190.jpg


They are complete
http://i152.photobucket.com/albums/s...s/PICT0194.jpg

snellemin 09.07.2010 07:33 PM

Nice!!!

JERRY2KONE 09.07.2010 08:07 PM

Good info
 
Nice thread. Good info. It looks like some comapnies are doing some server upgrades, and a few employees are cashing in on the out dated power supplies?? I know allot of businesses could care less where the old equipment goes when these upgrades are in progress. It's just too much work for them to advertise, sell, and ship old equipment, so they just junk them and move on. Nice home resolution though. I have a friend who does this kind of work for a living so I will have to ask him to hook me up with a few of these for my own power supply needs. He maintains a couple of very large server facilities for a security company, which handles the majority of American banks account transactions across the USA, so I am sure that he can come up with a few PSU's for me. Using the info on here I should be able to setup a sizable PSU for my R/C needs.

brushlessboy16 09.07.2010 08:16 PM

Lesons learned today,
-Heatsinks contain floating high voltage
-My power supply sounds like an idling 747....
-My subs run just fine on 1 400watt unit.
-80hz shakes my room, my house, and my neighbors house
-80hz blasting aggrovates my parents in about a minute.

:) now i have a spare 400watt unit

snellemin 09.07.2010 08:30 PM

lol, I use to have 4 10" subs in a gigantic box in my room. That sucker went below 10hz. Went on every morning as a alarm. Imagine 600W rms going off at 9am. I use to run car amps. I've have a few other Server PSU and plan to setup a system in my garage with the spare car audio that I have left over.

my high school setup.

http://i189.photobucket.com/albums/z...n/oldsetup.jpg

ANGRY-ALIEN 09.07.2010 10:45 PM

Quote:

Originally Posted by brushlessboy16 (Post 379457)
Lesons learned today,
-Heatsinks contain floating high voltage
-My power supply sounds like an idling 747....
-My subs run just fine on 1 400watt unit.
-80hz shakes my room, my house, and my neighbors house
-80hz blasting aggrovates my parents in about a minute.

:) now i have a spare 400watt unit

A good reason for them not to touch when they are on... you can get a big spark between them... you can even short the internals... did you remove the ground to get them running together?

brushlessboy16 09.07.2010 10:48 PM

Quote:

Originally Posted by ANGRY-ALIEN (Post 379471)
A good reason for them not to touch when they are on... you can get a big spark between them... you can even short the internals... did you remove the ground to get them running together?

It was unplugged, just had not discharged yet,

Amp was running fine on just 1 PSU tho

ANGRY-ALIEN 09.07.2010 10:55 PM

Yep... those Caps will hold a bit for a while...

brushlessboy16 09.08.2010 12:26 AM

http://i152.photobucket.com/albums/s...s/PICT0196.jpg

brushlessboy16 09.08.2010 12:28 AM

Quote:

Originally Posted by snellemin (Post 379460)
lol, I use to have 4 10" subs in a gigantic box in my room. That sucker went below 10hz. Went on every morning as a alarm. Imagine 600W rms going off at 9am. I use to run car amps. I've have a few other Server PSU and plan to setup a system in my garage with the spare car audio that I have left over.

my high school setup.

http://i189.photobucket.com/albums/z...n/oldsetup.jpg


Hey are those pioneer 10's in the top center? Those are what Im currently running, have the model number for them?

snellemin 09.08.2010 12:35 AM

I don't have the model number. I do remember that they are the free-air models. I still have 6 of them. I would have to uninstall them to see the model number. They could be TS-W253C .

brushlessboy16 09.08.2010 12:40 AM

Quote:

Originally Posted by snellemin (Post 379485)
I don't have the model number. I do remember that they are the free-air models. I still have 6 of them. I would have to uninstall them to see the model number.

maybe thats why mine sound like crap in my ported box...

I have an old gm-x962 pioineer amp that works great!
Drivers apparently need replacing:whistle:

snellemin 09.08.2010 12:47 AM

I used those speakers in isobaric, aperiodic, sealed and bandbass boxes. Never had issues with them. I even use to DJ with them.


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