RuiDeng Riden RD6006P DC power supply

[luudee]

My only and biggest complaint about the original RD6006 and RD6012 units, was the huge amount of noise and ripple they would put out. I measured more than 500mV peak to peak.

The screenshots for the RD6006P look great !

Now, if you guys will release a RD6012P unit, I will upgrade !!!

Does anybody know if a RD6012P/RD6018P is planned ?

Thanks,
rudi

[UniSoft]

Does anybody know if a RD6012P/RD6018P is planned ?

RD6012P will be released soon,
they already announced it
https://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22464327644.68.3f112636IzSCpA&id=649408312817

[UniSoft]

RD6012P already available for order (now have discount 2021.11.5 - 2021.11.10 PST)
https://aliexpress.ru/item/1005003472332331.html
https://budgetlightforum.com/node/79655

PS: No custom firmware is planned for the RD6012P.
However, as well as investing in its purchase.

[Stefan H.]

Damned! I ordered a 6018W at the beginning of November.

The new 6012PW on sale for $ 84 completely passed me by. ;-(

Now it should cost $ 129 on Ali to Germany. This is too expensive.
Is this still on offer anywhere?

@UniSoft
Is the hardware or software of the 6006P and 6012P so much different or why is it not planned?

[UniSoft]

@UniSoft
Is the hardware or software of the 6006P and 6012P so much different or why is it not planned?

I already have 4 models (6006, 6012, 6018, 6006P),
three of them are completely idle and just take up space.
I don’t want to invest in buying another one.
It is also time consuming.

[ceut]

Hello,
I have bought an RD-6006P, that I have just received today.
It is really a great PSU.
But 2 problems: one is the breathing led when it is shutted down.
And the other is a big one: it has overshooting problem 

FW version is 1.40, so coming already with latest version.

Is someone has checked this ?
Is my unit has any problem ?
Maybe my simple setup to check this is not good ?
I have also a DPS5005 which has not this problem at all.

I have send a message to them on aliexpress with same photos (RD Official Store).

Here are the screen from my new DSO:

[ceut]

@UniSoft
Is the hardware or software of the 6006P and 6012P so much different or why is it not planned?

I already have 4 models (6006, 6012, 6018, 6006P),
three of them are completely idle and just take up space.
I don’t want to invest in buying another one.
It is also time consuming.

Hello,
So after my post, I have found and install your custom firmware, and I find it great, so thank you! 
I have read all the big "RD60xx Custom Firmware Reference.pdf" and have tried many settings.

But I have the same overshooting problem with this one too, like the one I have posted before.
After some searching, my thought is that it is probablly because the output is activated too fast.
Do you think you could add a menu for slowing down the rise of ouput with a timing setting ?

I have tried also the using of the green port with the GreenOutput option: it seems to be better, but randomly (I think the relay slows a little down the rise of the ouput).

Also: same overshoot behavior after a releasing a short of the red/black bananas.


Thank you ! 


Edit: I have posted the video I have made for their support on Youtube:


Edit2: Here is my 3 years-old DPS5005 in comparison (I have sent to the RD support).
It is a lot slower, softer start, have more noise, but not a single overshoot.
And I can not notice the slow start when I use it 

[UniSoft]

Hello,

But I have the same overshooting problem with this one too, like the one I have posted before.
After some searching, my thought is that it is probablly because the output is activated too fast.
Do you think you could add a menu for slowing down the rise of ouput with a timing setting ?

Not,
In RD60xxP all power part controlled by another MCU...

[ceut]

That is a very bad news 
I have checked your schematics, it's the U8 part of the power part I think ?
And the main firmware is in the U8 flash memory of the control part ?

So I have to wait reply from RD...

Also, maybe you could check if you have overshooting on your model too ?
It will be great to know that, I could then compare with mine (if there is a hardware problem on mine    )

[UniSoft]

I have checked your schematics, it's the U8 part of the power part I think ?

Yes, MCU STM8S003

And the main firmware is in the U8 flash memory of the control part ?

The main firmware is in the U4 MCU STM32F103... (256KB Flash)
External Flash U8 used only for store the logo, nothing else.

[ceut]

I have checked your schematics, it's the U8 part of the power part I think ?

Yes, MCU STM8S003

And the main firmware is in the U8 flash memory of the control part ?

The main firmware is in the U4 MCU STM32F103... (256KB Flash)
External Flash U8 used only for store the logo, nothing else.

Thank you for your answer.
I was not thinking about the boot logo...

Also, I have had an answer from RD, they told that it is a normal beahviour:
"Four-bit resolution digital power supply, PWM DA is used in the design, and the reference is added with RC buffer and then given to the comparison circuit, so that the voltage will not overshoot. The P series power supply has a linear adjustment part. In order to increase the response speed, this part of the circuit is not added in the design, so there will be a small overshoot.
so it is normal , not a problem"

So the "small" overshoot is about +0.40V  at 1.5V (1.90V) and about 0.30V in average in most of the rest of the value 
I reply them...

I don't know if there will be a solution for that.
So I do not recommand the "P" series at all if some of you plan to do low voltage electronics with it (so the precision and the noise is not usefull at all in these models).


Also, I have tried to follow the leads for the output, to find if I could solve this problem by adding a capacitor or something else anywhere, but it is really complex for me 
And adding big capacitor on the output does not change the overshoot...


Edit1: I have put a capacitor of 22nF, then 470nF in parallel of C9 on the CT pin of U2(TL594): the sawtooth is a lot slower, but nothing changes in the output form 
(with 470nF the frequency is about 1kHz)

Edit2: News from RD Support after my last message to them, they have reproduced the problem, and they told me that a fix could be done (hardware+software). Wating for them 

[UniSoft]

Hello,

Edit2: News from RD Support after my last message to them, they have reproduced the problem, and they told me that a fix could be done (hardware+software). Wating for them 

They released new version...
http://www.ruidengkeji.com/rdupdate/firmware/RD60065/RD60065_V1.41.bin
2022.05.17 V1.41 1.Optimize the small spike at the moment of opening the output.

Did you try it?

[ceut]

Hello,

Edit2: News from RD Support after my last message to them, they have reproduced the problem, and they told me that a fix could be done (hardware+software). Wating for them 

They released new version...
http://www.ruidengkeji.com/rdupdate/firmware/RD60065/RD60065_V1.41.bin
2022.05.17 V1.41 1.Optimize the small spike at the moment of opening the output.

Did you try it?

Hello,
No I have not seen this new FW 
They told me that they will ask me when they will release the new firmware, because they were super busy so no time to check better the beta version.
So will try it tomorrow 

[ceut]

Hello,

Edit2: News from RD Support after my last message to them, they have reproduced the problem, and they told me that a fix could be done (hardware+software). Wating for them 

They released new version...
http://www.ruidengkeji.com/rdupdate/firmware/RD60065/RD60065_V1.41.bin
2022.05.17 V1.41 1.Optimize the small spike at the moment of opening the output.

Did you try it?

Wow they have done exactly what they told and sent me 
Very great job from them !

And I'm super happy because I have contributed for the improvement of this really great little power supply 

Now, I have to wait your firmware 

First shoot is with the capacitor mod they told me to do with your fw 1.40 (same with the original one), and the second with the new 1.41 firmware I was waiting for
(voltage set at 1.500V)

Edit: here is the final post: https://www.eevblog.com/forum/testgear/ruideng-riden-rd6006-dc-power-supply/msg4354561/#msg4354561

[Sigi_cz]

Hi,
I plan to buy the RD6012P. Is there a list of features the UniSoft's FW adds for the RD6006P? You know, so I can think about them when I need them 
Thanks

[UniSoft]

I plan to buy the RD6012P. Is there a list of features the UniSoft's FW adds for the RD6006P?

There is no list of features.
All features are described in a reference document.
RD60xx Custom Firmware Reference

Here you can download an official manual(s)...
http://www.ruidengkeji.com/inst/RD6006P.pdf
http://www.ruidengkeji.com/inst/RD6012P.pdf

Note: for RD6012P there is no custom firmware!

[gljuk]

Hi!

Got RD6012P, the RD6006P's more powerful version.
Today started using it as usual, but found that output voltage could not be regulated. It is aporrox. Vin-1.2V. Vin is 20V, so the output is between 18 and 19V. Unit is on CC mode, although no load is connected.

The unit is like new, never used with loads higher than 5A. Seems that some transistor is shorted. How to find one?

Thanks
Alex
 
update:
It was all my fault. I have desoldered LED on the back of the unit, thinking it was just for indication. It was not! Soldered it back and the unit is working flawlessly. D'oh

[Surgo]

I picked up and assembled an RD6006P kit. It came with an extra surface-mount component of some kind in a bag that I have no idea what is for. It wasn't mentioned at all in the assembly video on Riden's YouTube page, but it's in its own bag so I figure the inclusion isn't a mistake. Anyone have any idea what it's for?

[electr_peter]

Most probably it is a SMD fuse replacement. There is a SMD type fuse holder on PCB.

[myf]

Hello,

I recently purchased an rd6012p power supply and also received this tiny component in its little pouch.

The user manual can be found at http://ruidengkeji.com/inst/RD6012P.pdf

The photo on page 42 shows the inside of the device. On my device, the Q position (on this photo p.42) is empty (as on the photo). I leave this fuse holder empty and my device works.
I don't understand the comments about "less than 10A" for this fuse when the RD6012P is a power supply that goes up to 12A. 

It seems that there is another fuse in position P. This additional fuse is perhaps a replacement for the fuse in position P.

I don't know...

Have a nice day !


F.

   

[Surgo]

Thanks! Hadn't even considered that it might be a fuse. Never seen a SMD fuses before...makes perfect sense in retrospect!