Do you think I can use these to test for over discharge protection in lights (reduce voltage and see when it shuts off)? I use one in the lab but should get one at home too.
Yes, it can be used for this, although the relatively high ripple voltage on the higher current models can cause some false readings for things like LVP. My older/lower powered DP3005 has lower ripple and works better for this kind of thing if I have issues with the DPS5015.
How is the fan noise?
Maybe it needs a temp controlled fan swapped in?
I bought the DPS5020 some time ago. Because the case i want to use is out of stock at the moment i am using a old Car battery charger case. For the input i first used a car battery. Now i use a 60v 480W PSU. I also ordered a few extra parts. But i am waiting for BG to get the case back in stock (https://eu.banggood.com/Wholesale-Warehouse-250x190x110mm-Blue-Metal-Electronic-Enclosures-DIY-Power-Junction-Box-wp-Eu-1067251.html?rmmds=category#).
With all the little extras i have planed there will be not much space left inside. But if i count evrything together i have spend ~120-130€.
But i have a Bench PSU with a lot of output if i need it. And if i check the available Bench PSU that i can buy for this amount of money i get maybe half the output with less options.
When everything is ready I can switch from the internal PSU to external input (when i am on the way and only have a battery for power). I added a second display for input Voltage /current and Power. I know that i can see the input voltage on the DPS5020 but i find it more convenient to see total power draw. . . on a second display. Also i can see input voltage on the second display before i use a switch to power on the DPS5020. So i can be sure not to have to much input voltage (the second display can measure DC voltage up to 100V). A few switches, terminals for the output and a bigger fan will also be added. And with the option to connect the PSU to my PC i have everything i need. But i really would like to see the logging funktion in the PC software.
Would be a really nice feature to have when testing LEDs. But i think this is somerhing many people have mentioned before.
That would be cool to see.
Here is how I made case for my DPH5005. It’s just generic project case.
I use old PC power supply to power it.
There is 12V, 5V and 3.3V output in front with voltmeter and ammeter and also it’s possible to power DPH5005 form rear 5.5x2.5 or banana socket.
I just have to label it.
Sorry for bad pictures but I’m having some construction works right now and it’s chaos here…
I will add pictures when i get the Case and when i installed everything.
Here a small list of my parts :
- https://www.aliexpress.com/item/with-5A-fuse-Red-Rocker-Switch-Fused-IEC-320-C14-Inlet-Power-Socket-Fuse-Switch-Connector/32912388753.html?spm=a2g0s.9042311.0.0.27424c4dQiFuOb (i will use a propper fuse)
- https://www.aliexpress.com/item/1xBlack-6-Pin-Toggle-DPDT-ON-OFF-ON-Switch-15A-250V-Mini-Switches-E-TEN1322-VE066/32816047985.html?spm=a2g0s.9042311.0.0.27424c4dQiFuOb (switch to toggle between internal PSU and external input)
- https://www.aliexpress.com/item/1-PCS-New-4-PIN-Toggle-Switch-ON-OFF-Two-Position-Switch-15A-250V-VE147-P/32813828748.html?spm=a2g0s.9042311.0.0.27424c4dQiFuOb (switch to turn on the DPS5020)
- https://www.aliexpress.com/item/5-Pcs-4mm-Banana-Plugs-Female-Jack-Socket-Plug-Wire-Connector-5-Colors-Each-1pcs-Multimeter/32877193323.html?spm=a2g0s.9042311.0.0.27424c4dvJDHd9 (terminals for input /output)
- https://www.aliexpress.com/item/M4X36-pure-copper-terminal-4mm-banana-Jack-Socket-20A-binding-post-Banana-plug-connector/32876335955.html?spm=a2g0s.9042311.0.0.27424c4dvJDHd9 (terminals for input /output)
- Excellway® 20A Digitales Multifunktions-DC-Leistungsmessgerät, Energieüberwachungsmodul, Voltmeter, Amperemeter Sale - Banggood Deutschland-arrival notice-arrival notice (It will be placed between internal PSU /external input and the DPS5020)
- https://eu.banggood.com/Wholesale-Warehouse-250x190x110mm-Blue-Metal-Electronic-Enclosures-DIY-Power-Junction-Box-wp-Eu-1067251.html?rmmds=category# (still waiting for the case)
- Fan and a few small things were from my stash of parts.
I don’t think I have actually ever heard in run yet. Both fans are Temp controlled.
One is being controlled from the DPS5015, the other (case fan) is being controlled by the power supply. The fan was already in the power supply case.
I simply removed the power supply case leaving the bottom that the board is mounted to and mounted the power supply in the blue enclosure using stand offs.
This is the 1000 watt 60v 17a model, it’s almost as big as the enclosure. Page Not Found - Aliexpress.com
Took a piece of aluminum sheet that came off the power supply case and cut it to fit the DPS5015 board. Bent a 90 degree bend in the edge of the aluminum sheet for the DPS and screwed that to a big aluminum heat sink in the back of the power supply spanning the DPS over top of the power supply. Quite a bit of work but this size power supply in this case the room is limited and I tried to make the most of what I had.
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I purchased a 1/8” aluminum sheet from ebay and cut to size and drilled my holes.
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I didn’t really like the thin front panel it had and I ended up using the front panel to mount the fan on the left side where the air slot holes were. I drilled some new air holes for the fan and mounted it. I didn’t want to have to fight with the fan ever time I decide to take the case off so I cut the case top and made it removable without having to mess with the fan. Just loosen four screws and its off.
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I got a few more upgrades to do once the parts get here. I want to be able to measure the actual voltage at the load instead of using a DMM.
Waiting on a DVM to install in the enclosure and a fused switch. Doesn’t look like a professional lab power supply but it works great. 
I’m trying to think of a reason to get a 1000W psu, but I’m coming up empty.
A 480W (60v x 8A) seems adequate for me (testing LEDs like the xhp70.2 and automotive stuff). It should give the full 20A up to about 20v and still go up to 50v at lesser amps if I need it to.
What are you guys using the bigger wattage psu for?
DPS5020
Am I reading this right if you connect input with PSU, but if a load is attached it will simply burn?
I have no idea what your refering to. Can you please explain?
BG description
If you connect the supply power with output, the module will be burnt.
I think they mean that if you try to apply voltage to the output it will short circuit which is not surprising.
I know I have charged many batteries with my DPS without an issue but the other DP version had to have a diode inline to do this. My guess is that they now how the diode built in but if you try to apply too much reverse power it will naturally blow the diode.
What about a combination of some older quality linear transformer PW and step down modelu like this
There should not be much noise from the primary power supply.
No thoughts?
I’ve got everything ordered, but the psu.
I mostly went with it because there wasn’t a huge price difference and if I ever needed it, it be there.
I also thought it might come in handy doing anodizing of aluminum and titanium if I ever wanted to try that again.
Buy to what you intend to use it for, I just didn’t want to some day need the extra power and have to buy a second PSU for that purpose.
Is there any need for us to have the green earthed binding post?
I’m guessing everyone here just goes with the 2 black and red posts?
It can be used with a anti static wrist band for working on static sensitive parts.
Really isn’t needed though. 2 post will work fine for our use.
Maybe you can post up some pics when you get done. I like seeing different ideas. 
New member here, but I was following this thread because I just bought the DPS5015 and an enclosure for use as a general purpose bench power supply. I also bought a used Agilent E3646A from eBay for more general low-current use.
For the DPS5015, I bought a pair of Dell EPS-470s (one to use and one as a backup - they were only $17.50 each shipped).
So I opened up the EPS-470 and removed the power connector, and soldered in a pair of wires and binding posts to the exterior. It works fine, but I have noticed that that connecting the DPS5015 to the binding posts, then switching on the DPS (with the power switch that came with the enclosure), the EPS-470 shuts down for a few seconds, and then turns back on. The DPS then starts normally.
Does anyone else see this behavior? I am guessing that the DPS momentarily draws more than the max current that the EPS can output, causing a shutdown. (The specs show the rated current value for the EPS is 9.7 amps.)
For now, I have plugged the EPS into a power strip with a power switch, and I just use that as an on-off switch (leaving the DPS switch on all the time). This seems to allow for a “normal” startup of the DPS.
I just wondered if others see this happen with this particular supply. I haven’t tried it with the backup unit I bought, since I haven’t modified it yet. I tried to see if powering up the DPS when plugged into my Agilent supply (set at 20V, 1.5 amps), and I didn’t see any behavior like this). My thought here is that it tolerates a brief over-current condition by switching to CC mode when it maxes out, but I don’t see any indicator of this on its screen.
Thanks!
EDIT: I stumbled on a video that from RD that suggests connecting everything and THEN turning on the INPUT PSU (the Dell EPS in my case). This seems to confirm that my method of powering on the EPS with a switch is the right approach. I would like to understand the issues that are caused by connecting to the input PSU and THEN powering up the DPS.
could you make a video to show the problem ?