If one integrates the A/C power supply into the same enclosure, a separate fan shouldn’t be necessary.
I ordered and received this case from banggood. It’s definitely worth the $10. The dps5015 only takes up half the space so I also ordered a four port usb output with 36v input and current measurement. Now I have a the dps5015 with 4x 3amp usb outputs with capacity measurement to power some of my battery chargers. I haven’t got it all together yet but I’m very excited about it!
I am planning to build a DPS5015 buck controlled power supply utilizing this DELL external switcher power supply. It supplies 48VDC and 9.6A.
The ESP-470 was purchased on flEbay for $25.
Very nice, I am thinking about doing much the same thing.
In fact if anyone wants to buy my current DPS3012 setup, complete with acrylic case and power supply, let me know.
I would sell it as setup for $60 + shipping.
Don't get me wrong TA, I'm not arguing. Shoot, I'd use mine with no case and a laptop supply. And the other shoe dropped on the one I found, so...
That's a nice looking Dell supply. I saw the same case as the Banggod one. It's certainly big enough for the DSP, but not a DSP and a supply. I'll probably separate the two for now. It's darn hard to find a case big enough to house that ebay supply and the DPS. Even itx cases won't do it. That ebay supply is long, but it's a bunch of watts.
I was actually kinda curious to add up the costs myself since I am considering selling mine. So that post was only indirectly directed at you.
I would not bother with combining the power supply and the DPS in the same case myself unless you need to for other reasons. I found that to be too much of a pain. So I put the power supply under the desk and run the wires up to the DPS, makes for a lot less desk space used which is of far more value to me then under the desk.
So far it has worked flawlessly like this, going on what, 3 months? Now I also am not drawing super high wattage on the things I use it for, at most it is around 100 watts thus far. Just don’t have anything that needs more then that at the moment.
This is my Power Supply plan (based on what parts I find).
The utility box is an old 150W flood light housing. It will be screwed to the DELL Power Supply and the DPS5015 placed inside .
I was going to cut off the light mounting bracket boss on top, but currently plan to use it as a smoke stack and mount a handle to it. Please don’t laugh!
Hey, as long as it works thats all that matters, it is cheap and should work just fine.
I have one of these 48V 400W power supplies from playing with class D audio amps I was planing on using with mine.
The stock voltage pot can adjust it between 33-53V you can internal mod it up to 60V as seem here.
A helpful word of advice on these inexpensive switch mode supplies is they have a side switch to select between 110-220VAC input. They come set to 220V and will operate unreliably on 110V when set to 220. Several times I thought I had a defective power supply until I figured out this problem.
Has anyone had a scope on the output? My little supply is not quite stable enough to test LVP on a driver. I am considering one of these, will it do it?
Well, there may be wiiise reasons for those supplies to come preset at “220V”. 
Wonder what could happen with some folks on high voltage mains if those were preset at 110V by default… 
Cheers ^:)
Yes, I have put both of mine on my scope, now my scope is a cheap unit that only reads up to 2mhz IIRC but it showed zero ripple down the finest resolution it offered.
Hey TA, you mentioned using these for charging. Do they have a charge curve for Lithium cells or do you manually adjust the charge or?
Any CC/CV supply will do, though the ones equipped with adjustable divider of end voltage current flow/end of charge indicator may be preferred:
- Adjust the current output (CC) to the desired value: charging speed.
- Adjust the output voltage (CV) to the desired value: end-of-charge cell voltage.
- If available, adjust the % of end voltage current flow.
Example “charging” CC/CV circuit: 1PCS LM2596 DC-DC Step-down Adjustable CC/CV Power Supply Module LED driver
Cheers ^:)
Man… Thanks! I don’t know why I didn’t know this. I always assumed the charger needed a charge curve to match lithium chemistry. So when set to cc will it charge at the set current til the end voltage is reached?
Exactly. Once the end voltage is reached, current flow starts diminishing, describing a sort of reverse exponential curve.
If present, the end-of-charge light/led lights up once the current flow goes down to the trimpot selected % value of the charging current.
Cheers ^:)
Yep, like said above, simply set the voltage to 4.2v (I like 4.18-4.19v personally), then set the current to whatever you need for that battery. Connect it to the battery in the correct polarity and let it go.
Have you got this power supply working yet? how do you turn it on? Some server power supplies are a real pain to figure out the turn on wire/signal.
If you have figured out how to get this one to turn on and working I think I might have to upgrade before long to the 5015.
The power supply works great with the DPS5015. To turn it on, just plug in the power cord.
There are only three output pins (left side in picture below). The right most pin next to the fan is negative (not grounded to case), the center pin is 48vdc positive, and the left most pin is unknown to me (2vdc positive).
There are two led indicators (labeled Fan & Power). Plug in power cord and they both light up green. I removed the cover and unplugged one fan to check voltage (it was around 8vdc) and the fan led turned to amber while the 1 of 3 fans was unplugged. Returned to green when reattached.
Hope this helps,
whopist
Thanks, thats what I was wanting to know! Now to sell my 3012 so I can upgrade lol.