Espritmodel.com Telemetry Radio
Reply
Thread Tools
Old Aug 21, 2011, 04:09 PM
Registered User
Czech Republic, Hlavní město Praha, Prague
Joined Oct 2010
205 Posts
U used this method, right?
http://www.rcgroups.com/forums/showp...87&postcount=7
I used it for fanless HP PS with great success.
I think it should be the pins around the 12VSB, because they seems to have logic signal at that 4.8V.
And so far, ALL PS i modified it was always also the short pin.
Done about 5 different units.
If you follow that and it does not work, then it is really strange.
jointer is offline Find More Posts by jointer
Reply With Quote
Sign up now
to remove ads between posts
Old Aug 21, 2011, 04:36 PM
Registered User
Near Kingston, Ontario, Canada
Joined Dec 2004
379 Posts
Quote:
Originally Posted by Borlax View Post
Now i found out how to start a Delta DPS800GB-A, short pin 30-31 bottom with pin 34 top, and the PSU starts.
Great. I have been waiting along time to find out how to get this power supply running. However I find that I can't seem to get much current out of the supply. At approximately 2.5 amps the voltage drops from 12.60 to 12.4 and with 8 amps it drops to 12.26 volts. Anymore and the supply goes down to 2 volts. Any ideas would be appreciated.

Thanks,

Dave
376782 is online now Find More Posts by 376782
Reply With Quote
Old Aug 22, 2011, 08:16 AM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Hey Zartoop,

try shorting pins 33 & 36 to ground through a 500 or 750 ohm resistor for your DPS 1200 FB.

The 1.5k you are using might be to high.
xandrios is offline Find More Posts by xandrios
Reply With Quote
Old Aug 22, 2011, 01:00 PM
Registered User
Albertslund DK
Joined Aug 2006
47 Posts
On the DPS800GB you can turn this trimmer on the daughter board, so you get almost 12,8v. But the voltage will still fluctuate when you draw lots of amps.
Borlax is offline Find More Posts by Borlax
Reply With Quote
Old Aug 22, 2011, 02:35 PM
Registered User
Near Kingston, Ontario, Canada
Joined Dec 2004
379 Posts
DPS 800 Power Supply Current Issue

Quote:
Originally Posted by Borlax View Post
On the DPS800GB you can turn this trimmer on the daughter board, so you get almost 12,8v. But the voltage will still fluctuate when you draw lots of amps.
This power supply is rated for 65 amps so certainly should be able to put out more than 10 amps. Is it possible that it uses remote sensing?
376782 is online now Find More Posts by 376782
Reply With Quote
Old Aug 26, 2011, 04:56 PM
Unshaven yokel
sparkysko's Avatar
Portland, Oregon
Joined Oct 2007
1,483 Posts
In regards to the KD175 and the JD200. I see mention that the KD175 speed can be slown down with a pot to almost nothing, and I see that the JD200 has resistor to ground to slow it down. It seems that the KD175 can be slowed down more than the JD200?

Is it possible to slow down the JD200 fan to a quiet level? The KD175's are going for twice the price now.. Since these are used for powering radio equipment, sound level is important, or are there other low noise supplies that someone could recommend?
sparkysko is offline Find More Posts by sparkysko
Reply With Quote
Old Aug 26, 2011, 06:51 PM
Unshaven yokel
sparkysko's Avatar
Portland, Oregon
Joined Oct 2007
1,483 Posts
Also, had no luck with the DL580 G3 1300 watt supply in regards to getting regulation.. I got the voltage to bump up (A1 to C5), but the minute I attach anything to the current share pin (D4) and voltage sense + pin it shuts down or won't power up..

I've tried using larger/smaller valued resistors than listed amongst all the connection points. (tried 2k/7k, 2k/6.8k, 1.5k/6.8k 2k/6.8k, 2k/6.5k)

I did try 22 ohm resistors for the fan, no joy, shuts down. 10 ohm works, although i'd still like to quiet it down a bit. Going to try 16 ohm on the next one I get.
sparkysko is offline Find More Posts by sparkysko
Reply With Quote
Old Aug 27, 2011, 06:52 AM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Hey sparkysko,

Current share is pin D3.
Also, the voltage sense + pin is not used in this mod. The +12 RS- (pin C5) is used.

Hope this helps.
xandrios is offline Find More Posts by xandrios
Reply With Quote
Old Aug 27, 2011, 12:13 PM
Registered User
Polska, Zachodniopomorskie, Stargard Szczeciński
Joined Aug 2011
4 Posts
Quote:
Originally Posted by 376782 View Post
Great. I have been waiting along time to find out how to get this power supply running. However I find that I can't seem to get much current out of the supply. At approximately 2.5 amps the voltage drops from 12.60 to 12.4 and with 8 amps it drops to 12.26 volts. Anymore and the supply goes down to 2 volts. Any ideas would be appreciated.

Thanks,

Dave
Hi all DPS800GB users. I have tried shortening pins 30, 31 and 34. +12V started but not at full capacity. The output voltage is quite stable up untill 16amps. When 16 amps is exceeded the voltage drops to 6V. Other outputs (+3.3V, +5V work at full capacity). I have two PSUes and they both work the same. They are not brand new so am not sure if they are 100% OK. Has anyone succeded to draw 80A using Borlax method?
ciesin is offline Find More Posts by ciesin
Reply With Quote
Old Aug 27, 2011, 12:36 PM
VOLTS > AMPS
stgdz's Avatar
United States, MN, Buffalo
Joined Jul 2011
3,865 Posts
After soldering 4 large and 3 smaller pins with hp580, is there anyway I can get this to run at 48v with another 580?
stgdz is offline Find More Posts by stgdz
Reply With Quote
Old Aug 27, 2011, 04:08 PM
Unshaven yokel
sparkysko's Avatar
Portland, Oregon
Joined Oct 2007
1,483 Posts
Quote:
Originally Posted by xandrios View Post
Current share is pin D3.
Also, the voltage sense + pin is not used in this mod. The +12 RS- (pin C5) is used.
Ah Ha! Had a braindead moment, the doc even shows it. Oddly enough, a 1.5k from A1 to C4 gave 13.3 and stayed within 1% at the power supply. Did the proper wiring, got ~13v (1.7k resistor this time), and hooked up + sense to the load. Voltage at the LOAD stays within 0.05% voltage now vs 5% without. (It actually goes UP 0.05% volts). I'm a very happy camper.
sparkysko is offline Find More Posts by sparkysko
Reply With Quote
Old Aug 27, 2011, 10:40 PM
Registered User
RUNDUCK's Avatar
AMARILLO, TX.
Joined Sep 2007
20 Posts
Thanks to everyone here for the information on power supplies. I received my server power supply and with all the info. here I have it up and running at 13.2 volts :-)
RUNDUCK is offline Find More Posts by RUNDUCK
Reply With Quote
Old Aug 28, 2011, 03:09 AM
Registered User
Joined Oct 2010
6 Posts
DPS 1200 FB A more info ...

Quote:
Originally Posted by xandrios View Post
Hey Zartoop,

try shorting pins 33 & 36 to ground through a 500 or 750 ohm resistor for your DPS 1200 FB.

The 1.5k you are using might be to high.
Connecting pins 33 to 36 powers up the PSU but with some caveats ...

trial 1) connecting 33 & 36 to ground - no power up
trial 2) connecting 33 & 36 (only, no ground) both through 750, then turn on power supply = led on and power is up. then connect 33/36 to ground = power off. then disconnect 33/36 ground = no power.
trial 3) power on psu. then connect 33 & 36 (only = no ground), result no led and no power.
trial 4) connect 33 & 36 with 180 to 560 resistor between = powers up any combination of dis/connecting and plugging in. connect 33/36/to ground = powers down, then disconnect ground = powers up.

All of this leads me to believe something more complicated than simple TTL is going on here.

If only I could get my hands on a DL580 G5 Power Backplane for next to nothing ..... ???? hint hint to anyone out there
zartoop is offline Find More Posts by zartoop
Last edited by zartoop; Aug 28, 2011 at 03:19 AM.
Reply With Quote
Old Aug 28, 2011, 12:08 PM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Full Pinouts for several 3Y Server PSUs.

Pinouts for 3Y YM-2102ABR/AAR, YM-2102BBR, YM-2721ABR, YM-2821ABR, YM-2651BAR/CAR/CBR and YM-2451DAR/DBR PSUs.
xandrios is offline Find More Posts by xandrios
Last edited by xandrios; Aug 28, 2011 at 12:24 PM.
Reply With Quote
Old Aug 28, 2011, 12:41 PM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Hey sparkysko,

does the voltage on your DL580 G3 rise .05% or just .05v DC with the regulation mod?

It should be .05v. This slight rise was meant to compensate for any voltage drop that the load wire may introduce at full current draw.
xandrios is offline Find More Posts by xandrios
Last edited by xandrios; Aug 29, 2011 at 07:06 AM.
Reply With Quote
Reply


Thread Tools

Similar Threads
Category Thread Thread Starter Forum Replies Last Post
Alert Need advice on high grade power supply for ISL-8 Byron Betterly Batteries and Chargers 7 Dec 07, 2003 08:31 PM
12volt, 9amp power supply for sale Paul Susbauer Aircraft - Electric - Airplanes (FS/W) 1 Dec 03, 2003 12:44 PM
12volt wallwart power supply reading 14.6 ? (help) power Batteries and Chargers 4 Sep 09, 2003 04:21 PM
Where to Get A Quality Power Supply? Joe Elston Batteries and Chargers 4 Apr 29, 2003 02:09 PM
High end charger and power supply for sale! Very new. ted616 Aircraft - Electric - Airplanes (FS/W) 6 Dec 02, 2002 11:31 PM