Review of DP50V5A & DPS3012 bench top power supply modules, best bang for the buck around!

[HKJ]

@pulu

My question, which , so far, no one has been able to answer, is “should the fan work all the time, or only at a certain temperature”?

In the models I have tested the fan start above a certain current, but also on temperature.

[thijsco19]

Noticed they have a 1000W cv cc buck converter, 50V and 20A.
Pretty impressive.
https://www.aliexpress.com/store/product/RD-DPS5020-Constant-Voltage-current-Step-down-communication-digital-Power-Supply-buck-Voltage-converter-LCD-voltmeter/923042_32821185351.html?spm=2114.12010608.0.0.4ab05bc5KWFxl8

I’m still figuring out of I need and want one or not. (obviously, I want it but not really need it )

[dchomak]

@thijsco19

I’m still figuring out of I need and want one or not. (obviously, I want it but not really need it )

As in my case, you won’t actually realize how much you need it until you get one

I really don’t know how I got by with out it, use it all the time.

[RD_tech]

1, Our DPS power supply android APP was published today,
A, Now it is only support communication version of DPS3005 , DPS5005 and DPS8005. If you have bluetooth board, you can connect it with android phone (only support android 5.0 and above).
This is the down load link (or you can check their file link ) My Files .
This is the video for APP : Android APP of DPS power supply publish for commummnication version of DPS5005,DPS3005, DPS8005 - YouTube
If you have USB version and not have BT board, you can make order here to buy a bluetooth board https://www.aliexpress.com/store/product/RD-bluetooth-board-for-DPS-and-DPH-power-supply-communication-version/923042_32882334859.html (if you have no communication version, don’t buy it)
B, For other power supply communication version (DPS5015. DPS5020,DPH5005), APP is designing ,in the future Maybe you just update this app on line to get new APP. Now please wait our good news
This is all DPS power supply link, you can check https://rdtech.aliexpress.com/store/group/DPS-digital-control-power-supply/923042_508466030.html?spm=2114.12010108.nav-list.6.5794671dZ5MRbP
2, our new products UM34© USB 3.0 meter and USB load LD25 (25W, intelligence control ). For the old rules, new products are published, there is lowest price in 4 days , UM34 12.99 USD (normal price 16 USD), UM34C 16.98 USD (normal price 20 USD). LD25 8.99 USD (normal price 11 USD ), buying together will more cheaper, please check the link.
UM34© link: https://www.aliexpress.com/store/product/RD-UM34-UM34C-for-APP-USB-3-0-Type-C-DC-Voltmeter-ammeter-voltage-current-meter/923042_32880908871.html
LD24 link https://www.aliexpress.com/store/product/RD-LD25-Electronic-Load-resistor-USB-Interface-Discharge-battery-test-LED-display-fan-adjustable-current-voltage/923042_32882318330.html
UM34© video : New products UM34(C) and LD 25 USB Intelligent electronic load pulished - YouTube
A, UM34© is better than UM24©, same interface with UM25©, have USB 3.0 port.
B, only APP, not PC software, precision is better than UM24©, not better than UM25C,
C, LD24 is digital control USB load, have many protection(OVP,OPP,OTP) , can set the output state and current, big power 25w.
Thank you again for read so many thing, if you want to learn more , please check the page
This is our home page : https://rdtech.aliexpress.com/store/923042
Hope you like our APP and new products

[Texas_Ace]

Do these latest versions support logging now? I have not kept up with them recently.

[RD_tech]

the APP has this function , for PC software, we did not add

[prototype3a]

I just spotted this DPH5005. Buck/Boost and up to 10A on the input side. Looks like a nice unit but I honestly wish it was even more powerful and could go up to 80vdc on the output to drive some of the new ~72vdc COBs.

43.14€ 23% OFF|RD DPH5005 Buck boost converter Konstante Spannung strom...

I may still get one to use with some of my 36-40v COBs.

Edit: HKJ Review

Test/review of Power supply frontend DPH5005-USB 50V/5A with Bluetooth and USB interface

Power supply frontend DPH5005-USB 50V/5A with Bluetooth and USB interface [image] This device is the front end for a power supply, it must be supplied with low voltage DC power (Up to 50V). Official specifications: Input voltage range: 6.00-50.00V Output voltage range: 0V-50.00V Output current: 0-5.00A Output power range: 0-250W Product Weight: about 222g Display module size: 79*43*38(mm) (L*W*H) Cutout size: 71mm*39mm Power module size: 93*71*41(mm) (L*W*H) Length…

[moderator007]

https://www.aliexpress.com/store/product/RD-DPS8005-programmable-constant-voltage-current-Step-down-power-supply-module-Voltmeter-Ammeter-buck-converter-80V/923042_32849962454.html?
Just needs a 80 volt power supply. Most are settable, set it at a little higher voltage and your good to go.

[prototype3a]

DPH series is buck boost. DPS is Buck only.

[Enderman]

@prototype3a

DPH series is buck boost. DPS is Buck only.

The more you boost voltage the less current it can output and the lower the efficiency is.
Making it a boost driver would overcomplicate things and just make it worse.
Get a good 80V power supply and just use the DPS.

[prototype3a]

No.

[moderator007]

Maybe pair the DPS 8005 with this Page Not Found - Aliexpress.com?
If you think you might need a little more overhead choose the 500 watt model. Page Not Found - Aliexpress.com?

@prototype3a

No.

Okay

[prototype3a]

Lets be honest here. This is a flashlight forum and you’re suggesting that I use something that requires AC? If I wanted to do that, I could just buy a MeanWell HBG series LED driver/PSU.

The DPH series might be inefficient but it is potentially portable and it is flexible enough that I should be able to drive most any COB with it for testing.

[Enderman]

@prototype3a

No.

Well then that’s your problem.

@prototype3a

Lets be honest here. This is a flashlight forum and you’re suggesting that I use something that requires AC? If I wanted to do that, I could just buy a MeanWell HBG series LED driver/PSU.

The DPH series might be inefficient but it is potentially portable and it is flexible enough that I should be able to drive most any COB with it for testing.

These DP power supplies are meant to be bench top power supplies.
If you want to build some giant flashlight with this instead of a regular LED driver then you just need to have enough batteries to reach 80V+ or use a DC to DC power supply. It doesn’t have to be AC. The DPS has DC input.

[moderator007]

Why not use this then if your just driving leds from a dc source. https://www.aliexpress.com/item/1-PC-DC-DC-600W-IN-10-60V-Out-12-80V-Boost-Converter-Step-up-Module/32805641312.html?
I thought you were looking for a power supply to test with and power COB leds.

[prototype3a]

I looked at some of those boost converters and I could add a volt/amp/power meter to the output but the DPH is pretty close and a much nicer device.

In the end, I’m probably going to design my own driver since no one is crazy enough to make and sell a 300w buck/boost LED driver board.

I’d like to run my light on 6s lipo since it’s a convenient and readily available size. I may end up going 12s but I’d like to only need a single battery pack for convenience. Sure it won’t be all that efficient but this isn’t going to be a small light. The heatsink for the COB alone will likely be at least a kilogram. The whole thing may end up being 5kg. Also, I have a pile of 6s16AH packs so….

[Enderman]

@prototype3a

I looked at some of those boost converters and I could add a volt/amp/power meter to the output but the DPH is pretty close and a much nicer device.

In the end, I’m probably going to design my own driver since no one is crazy enough to make and sell a 300w buck/boost LED driver board.

I’d like to run my light on 6s lipo since it’s a convenient and readily available size. I may end up going 12s but I’d like to only need a single battery pack for convenience. Sure it won’t be all that efficient but this isn’t going to be a small light. The heatsink for the COB alone will likely be at least a kilogram. The whole thing may end up being 5kg. Also, I have a pile of 6s16AH packs so….

Maybe you should try thinking about WHY nobody has made one, if it really is because nobody is “crazy enough” or because “it doesn’t work”.
You might want to do some research on boost driver efficiency, or your “crazy” 300W boost driver will barely light up your COB.

[RD_tech]

thank you so much
for now buck-boost power supply, we only have DPH5005 and DPH3205

[RD_tech]

for efficiency, YES, you are right
for input , our products request DC, because we only design DC -DC, we have designed them better, you only add a simple AC-DC, that’s ok,.
so you don’t need to spend lots money to buy expensive AC-DC power supply

[RD_tech]

@Enderman

@prototype3a

No.

Well then that’s your problem.

@prototype3a

Lets be honest here. This is a flashlight forum and you’re suggesting that I use something that requires AC? If I wanted to do that, I could just buy a MeanWell HBG series LED driver/PSU.

The DPH series might be inefficient but it is potentially portable and it is flexible enough that I should be able to drive most any COB with it for testing.

These DP power supplies are meant to be bench top power supplies.
If you want to build some giant flashlight with this instead of a regular LED driver then you just need to have enough batteries to reach 80V+ or use a DC to DC power supply. It doesn’t have to be AC. The DPS has DC input.

right , thank you for your explaination