A simple high quality 12Volt 100Amp Power Supply- Part1 - Page 108 - RC Groups
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Jul 11, 2012, 07:55 AM
Steven
xandrios's Avatar
Hello on2vhf.

Shorting A6 and B5 to ground should power up your ESP 117 (DPS-600CB).

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Jul 11, 2012, 05:20 PM
Registered User
Hi, I have my kd-175 converted to 13.8volt and to the manual fan control: https://www.rcgroups.com/forums/show...&postcount=610 [1k and 50k poti] but I think it is the fan does not spin fast enough, what mechanism do I change it to run faster? (Works well dan still the automatic fan speed control?)
Jul 11, 2012, 05:31 PM
Steven
xandrios's Avatar
Hello Robo1981.

What do you mean by "the fan does not spin fast enough"?

If you need the fans to run normally then just omit the 1K resistor from the mod.
Last edited by xandrios; Jul 12, 2012 at 01:21 AM.
Jul 13, 2012, 07:35 AM
Registered User
Quote:
Originally Posted by jay4
i've built this item and it's real awesome it give me 200A at 13.8 volt for my ham shack equipment. i just add additional fan to make it cooler.


Good afternoon!
You couldn't photograph your device together with the fan?
Whether it is possible to use as a buster for the car?
Jul 14, 2012, 01:58 AM
Lipo Power
BrushlesHeaven's Avatar

Dell A930P-00 930W 77.5Amp


A1, B1, B6 connect to power on....
Now, How to slow down the crazy fan???
Jul 14, 2012, 05:18 AM
Registered User
Quote:
Originally Posted by BrushlesHeaven
A1, B1, B6 connect to power on....
Now, How to slow down the crazy fan???
How do you get this to work ive connected A1, B1, B6 but the orange warning light comes up and doesn't fully power on.
Jul 14, 2012, 07:37 AM
Steven
xandrios's Avatar
Hey BrushlesHeaven.

Grounding pin B2 should cause the fan to slow down.
Jul 14, 2012, 02:19 PM
Registered User
low to 80% rpm via potentiometer? would be nice
Jul 14, 2012, 02:29 PM
Steven
xandrios's Avatar
Then just use the external pot without the internal 1k resistor.
Jul 15, 2012, 12:37 PM
Steven
xandrios's Avatar
I've managed a simple OVP mod for the Dell Poweredge 6650 (ASTN 7000245) PSU that will allow voltage adjustment up to 16V.

This PSU doesn't seem to have a UVP circuit.

The full adjustable voltage range after mod will be from 3V to 16V at 72A.

This will make a great bench PS with these specs.

I will post pics and details later today or tomorrow.
Last edited by xandrios; Jul 15, 2012 at 07:40 PM.
Jul 15, 2012, 05:56 PM
Use the 4S Luke
feathermerchant's Avatar
What are the output caps rated for?
Jul 15, 2012, 07:30 PM
Steven
xandrios's Avatar
The usual 16V. I'll suggest staying below this of course.

The modded 6650 PSU can actually go past 20V . The output caps look easy enough to replace if necessary.

This may be grounds for a 20V mod.
Last edited by xandrios; Jul 15, 2012 at 07:42 PM.
Jul 15, 2012, 08:01 PM
Use the 4S Luke
feathermerchant's Avatar
We wouldn't want to bust a cap.

"This may be grounds for a 20V mod."
If it's needed for some application.
Jul 16, 2012, 08:07 AM
Steven
xandrios's Avatar
People were busting caps every day of the week where I grew up. One just missed me by a couple of feet while I was in bed sleeping. Then we got the hell out of there. No joke..
Jul 16, 2012, 07:29 PM
Lipo Power
BrushlesHeaven's Avatar
Never mind.... Works for about 10 seconds making 12.7V and than it stops...
Not sure how to make it not to stop.
Also the cooling fan goes 100% and pin 2B to ground is not slowing the fan down, not on this model



Quote:
Originally Posted by BrushlesHeaven
A1, B1, B6 connect to power on....
Now, How to slow down the crazy fan???


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