Espritmodel.com Telemetry Radio
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Old Aug 14, 2012, 07:55 AM
Steven
xandrios's Avatar
United States, CT, East Hartford
Joined May 2010
504 Posts
Hello ppi1.

With PSU plugged in.

Start by connecting the short tabs directly to ground. It may power up.
If not then also connect the remaining tabs to ground through a 500 ohm resistor one at a time.
Once you hit the right tab the PSU should start up.

Look here for examples.

http://www.rcgroups.com/forums/showthread.php?t=1465371
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Old Aug 15, 2012, 03:54 PM
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Russian Federation, Tverskaya oblast, Tver
Joined Aug 2012
4 Posts
Thanks Xandrios.
But at me feeble knowledge an elekektronik and electrical engineering, such research of the device at me hardly will turn out. I am afraid it will turn out big Ba-bax. I Hope someone from friends did conversion of the device and will share results, overlaid pinout.
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Old Aug 16, 2012, 04:19 PM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Here ya go ppi1.

For your PS-3701-1 PSU connect the indicated pins to power up.

Courtesy of your friendly neighborhood Rcgroups-Man RobertSw.

http://www.rcgroups.com/forums/showp...47&postcount=2

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Old Aug 16, 2012, 04:59 PM
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Russian Federation, Tverskaya oblast, Tver
Joined Aug 2012
4 Posts
Xandrios of thanks for the link!
At last and I can convert my PSU.
Peter
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Old Aug 17, 2012, 01:03 PM
...muy bien...
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Germany, BW, Pforzheim
Joined Jul 2012
186 Posts
Quote:
Originally Posted by Iron Savior View Post
I just prepped a pair of power supplies from a Dell PowerEdge 2950 (0Y8132 N750P-S0). It can be wired up the same way as a power supply from a 2850 for use with a lipo charger as seen here.
Quote:
Originally Posted by xandrios View Post
Astec/Emerson DS450-3/DS550-3, Sun Fire X4100/X4100 M2, X4200/X4200 M2, Dell Poweredge 1850, 2800, 2850, 2950, AA23290, AA23300, 7000814-0000, NPS700AB, N750P-S0, AHF-650-12-Y Full Pinout Assignment.

Astec manufactures the DS450-3/DS550-3.
The Sun Fire X4100/X4100 M2, X4200/X4200 M2 servers use the DS550-3 PSU.
The Dell 1850 AA23300 PSU is really a DS550-3 in disguise.

Dell 1850 AA23300 PSU and Astec DS550-3 voltage control modification 12V-14.2V.

http://www.rcgroups.com/forums/showp...postcount=1592

Connect PS On and PS Kill to ground to power up.

Pin B2 may be the analog fan control voltage input or may be left spare.
Connecting B2 to ground may slow fan speed and/or connecting to 3.3v may increase fan speed.

The accompanying Pinout from the Sun Fire™ X4100/X4100 M2 and X4200/X4200 M2 Servers Service Manual is for verification purposes.
How can two of these become serial connected to allow 24V output?

Any cut off AC GND and DC GND needed?
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Old Aug 17, 2012, 08:26 PM
Lipo Power
BrushlesHeaven's Avatar
Joined May 2009
297 Posts
DPS-600PB B and newer PS-3601-1C-ROHS

There is a new revised version of popular DPS-600PB B power supply out there!!!
The new model # is PS-3601-1C-ROHS series ESP135.
All the same in physical design with one detail, the fan is installed on the bottom of the power connector plate.
This new unit has smart IC for the fan speed installed with temperature sensor, see picture. There is no need for fan speed mod on this unit :-)
Power ON mod is the same as DPS-600PB, that is B3 and C3 to A1,that is it!!!
All the rest is there....
I have one made to try and it works perfect. More room on the top for installing 12V outlets....
At start up on power on fan will spin slow and it will slowly increase as the power consumption increases or temperature.... It has built in temperature sensor inside, love it!!!
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Old Aug 17, 2012, 08:46 PM
ancora imparo
jj604's Avatar
Melbourne, Australia
Joined Jul 2005
6,150 Posts
Put a link to this info in the sticky thread Brushles.

http://www.rcgroups.com/forums/showthread.php?t=1292514

Good find.

John
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Old Aug 18, 2012, 08:03 AM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
If for any reason you need to run the fan at maximum for the PS-3601-1C PSU then connect pin 4 to the +12v.

More info on the PS-3601-1C-ROHS here.

http://www.rcgroups.com/forums/showp...&postcount=586
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Old Aug 18, 2012, 03:40 PM
Registered User
Germany, TH, Hildburghausen
Joined Jul 2012
11 Posts
Hello,
i want to use an car amplifier,
powered by the kd-175 power supply @ 13.8v.
Unfortunately the power supply shuts down
by heavy basses.
How can i fix that Problem ?
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Old Aug 18, 2012, 05:04 PM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Hello Robo1981.

After doing the following modification, the KD175 will push out about 200W more power when the voltage is set to 14.8V.

http://www.rcgroups.com/forums/showp...&postcount=606

Maximum output current actually increases with voltage!!

If your car amplifier can handle 15.3V then you will get around 230W more.

Have you tried connecting a 1 or 2 Farad car audio stiffening capacitor in parallel with the KD-175 power supply?

The capacitor will help with the high current demands of hard hitting and heavy bass.

Or just add a second power supply in parallel.

I'm guessing that the car audio capacitor will cost less than a second power supply.

Or try connecting the positive sense line to the +DC output and negative sense line to ground. This should help with peak transients.
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Last edited by xandrios; Aug 19, 2012 at 12:49 PM.
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Old Aug 19, 2012, 07:56 AM
Registered User
Germany, TH, Hildburghausen
Joined Jul 2012
11 Posts
i'll try to deactivate OVP.

Which resistor is required to get an output voltage
of 14.5V ?
There are only resistors listed for up to 13.8V.
I don't have an car audio capacitor for testing.
D2 on +, D3 on - ? What causes that ?
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Old Aug 19, 2012, 10:00 AM
Steven
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United States, CT, East Hartford
Joined May 2010
504 Posts
Yo Robo1981.

After the OVP mod then:

Connect a potentiometer(1k - 10k) like this for voltage increase with clockwise rotation. Center wiper to pin D3. Left leg to pin C3. Right leg to pin D4.

This will give you the best chance for success because you can adjust the voltage up to around 15.3V.

A higher voltage will usually make a car amplifier draw less current.

Connecting the current share pin(A2) to +3.3V(A4) will take some stress off the potentiometer.

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Last edited by xandrios; Aug 19, 2012 at 12:07 PM.
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Old Aug 19, 2012, 02:58 PM
Registered User
Joined Jun 2012
3 Posts
I Have (2) Dell Power Edge 6800 1570W Power Supplies i want them converted will someone please let me know how much you would charge me to do them since i am not capable of doing them myself i am going to use them to run a Texas Star 1600 amp in the house for my cb radio i want the power supplies to run at either 15 or 16 volts
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Old Aug 20, 2012, 02:42 PM
Crazy Foamie Builder
JettaManDan's Avatar
United States, MD, Lexington Park
Joined Jan 2010
910 Posts
tons of awesome info! I have some questions if people have some time...TIA!!

i have 2 PS's i'm going to convert and mess with...

1st is a 200watt Dell PC power supply out of a mini tower....i tried this already..it has no power switch....when i ran the PS for the 1st time..i was just looking for 12v power...ran the black Wires together to one pole..and the yellows to another....i then hooked the green to a ground..and ran a small LED from a red to a black wire...i plugged in the PS and the LED lit up..but as soon as i tried to put any power to the charger it shut the PS off...

question #1..do i need to add a power swtich to it? or can it run without it? if i need one where does it hook up to?

#2...and instead of the LED's i have 10 ohm 10 watt resistors...do i need to run one from a red to a black correct? and will this add the load for it to work right?

PS # 2 - I also just bought a 480 watt ATX supply...it has a power swtich on it...is all i need to do is run a resistor from a red to a black and then group the yellows to a pole and the black wires to a pole and i'm done? do i still need ot run the green to a black ground as well? I've seen people run a 2 position switch with led's...one green and one red..curious as to why and what function the swtich has in addition to a power swtich?

thanks guys..i know the questions have probably been covered..but can't seem to find these specific answers in this huge thread

Dan
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Old Aug 20, 2012, 06:21 PM
ancora imparo
jj604's Avatar
Melbourne, Australia
Joined Jul 2005
6,150 Posts
Dan, you won't find much help on this thread unfortunately. This one is all about server power supplies which are quite different. What you are wanting info on is PC power supplies.

There is lots of stuff on the forums and elsewhere on converting these. Do a Google search for

"converting an ATX PC power supply"

and pages of good stuff will turn up.

Here's the first two I found.
http://www.instructables.com/id/Conv...gular-DC-Powe/
http://www.wikihow.com/Convert-a-Com...b-Power-Supply

Hope this helps.

John



Quote:
Originally Posted by JettaManDan View Post
tons of awesome info! I have some questions if people have some time...TIA!!

i have 2 PS's i'm going to convert and mess with...

1st is a 200watt Dell PC power supply out of a mini tower....i tried this already..it has no power switch....when i ran the PS for the 1st time..i was just looking for 12v power...ran the black Wires together to one pole..and the yellows to another....i then hooked the green to a ground..and ran a small LED from a red to a black wire...i plugged in the PS and the LED lit up..but as soon as i tried to put any power to the charger it shut the PS off...

question #1..do i need to add a power swtich to it? or can it run without it? if i need one where does it hook up to?

#2...and instead of the LED's i have 10 ohm 10 watt resistors...do i need to run one from a red to a black correct? and will this add the load for it to work right?

PS # 2 - I also just bought a 480 watt ATX supply...it has a power swtich on it...is all i need to do is run a resistor from a red to a black and then group the yellows to a pole and the black wires to a pole and i'm done? do i still need ot run the green to a black ground as well? I've seen people run a 2 position switch with led's...one green and one red..curious as to why and what function the swtich has in addition to a power swtich?

thanks guys..i know the questions have probably been covered..but can't seem to find these specific answers in this huge thread

Dan
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