RuiDeng Riden RD6006 DC power supply

[bateau020]

The technical drawing of them is here: https://e-z-hook.com/wp-content/uploads/2019/12/9406.pdf
From the dimensions, that would mean 11 AWG would fit.
They do not screw all the way off, and are rated for 15A. I doubt the original posts are rated for much more.
Suits me for a RD6012. I would however be a bit more cautious if I'd plan to use it on a RD6018 on full power for longer periods.

Also: Uploaded a better image in the post above.

[UniSoft]

New BETA versions (n)
+ bugfixes
+ new test option "CutOff -dV/dT" (algorithm taken from this project)
   not sure if it will work stable, due to low ADC resolution.
   works as (charging mode only):
     1. If, 5 minutes after the output is turned on, the voltage drops by more than the specified value, the output will be disabled with the "-dV/dT" status.
     2. If no voltage rise is detected within 15 minutes, the output will be turned off with the "0dV/dT" status.
   reports are welcome.

[bateau020]

Thanks a lot, will test the coming days.

[Dos9570]

Hey Unisoft,
two things,
I tested the new feature -dv/dt 0dv/dt and it seems like it triggers prematurely. I have set -dv/dt to 0.03v and when charging,(I am using two 800mah AAA NiMh in parrallel, V set to 1.55V) the V-batt is instantly rising to 1.51v. Then after 15min the 0dv/dt is triggering. However the Zero load Voltage of said Batteries, after this, is only at around 1.32V. Maybe there's just some Tweaking on my side needed?


Also I still haven't been able to figure out how to get back to auto scaling in the graph mode View, after setting some of the Scales manualy.

Nevertheless your Custom Firmware has made these Devices so much more powerfull, and there's no way in wich I can thank You enough for this effort.

[bateau020]

What was the charging current? When charging NiMH, one should use CC charging. The Voltage should only be a max limit. For 1600mAh, I would suggest 160mA.

[Dos9570]

Well that might be the prblem. I used cv and the Currend was around 80ma. I'll try it again in CC mode

[bateau020]

wasn't really awake, but putting 2 cells in parallel is not great. Measure them first, make sure they are well balanced. If not, charge them independently.

[UniSoft]

I tested the new feature -dv/dt 0dv/dt and it seems like it triggers prematurely. I have set -dv/dt to 0.03v and when charging,(I am using two 800mah AAA NiMh in parrallel, V set to 1.55V) the V-batt is instantly rising to 1.51v. Then after 15min the 0dv/dt is triggering.

It will not work in CV (Constant Voltage) mode... You need limit the current (usually 10% from capacity), i.e. CC (Constant Current) mode

Also I still haven't been able to figure out how to get back to auto scaling in the graph mode View, after setting some of the Scales manualy.

SHIFT + Click on ENCODER

[Dos9570]

Hey Unisoft,
thanks for the Help.
I have now tried it again in CC Mode. used 80mA for one 800mAh Cell. Yet with any -dV/dt Value, tried 0.03V to 1V after the initial 5 minutes the output instantly shits down in -dv/dt status. Meanwhile the cells stays at a zero load voltage of 1.3 volt. double checket it m´with my multimeter. I wouldn't be suprised if it's me again messing something up. But I haven't been able to get the feature to work.

[bateau020]

Just guessing, but we're probably staying below the limits of the resolution of the ADC. Try the 2 cells in series, and a somewhat higher charge current, like 0.2C (160mA for 800mAh). When you connect a multimeter during charging, do you see any voltage changes?

@unisoft: if we're hitting the limitations of the ADC (which is likely), why not go for the "voltage" method of https://lygte-info.dk/project/Charger%20UK.html? Charge at CC, and periodically measure the voltage under 0 charge current. That would be feasible with the ADCs. But it is somewhat more impacting on the code I guess.

[Dos9570]

to me it looks more like a Bug.
Since a Voltage Drop of 0.9V (the threshhold I set) will most certainly not have been reached, or measured.
Before charging them in Series, which theoretically requires balancing and stuff. I'd rather just charge NiMH in CV with Current-cutoff. Since that is less ideal, but possible from what I know.

[bateau020]

Is it possible you have triggered the 0dV/dT cutoff?

     2. If no voltage rise is detected within 15 minutes, the output will be turned off with the "0dV/dT" status.

If the voltage rise during charging is not noticed by the PSU, it will go in that state.

[Dos9570]

no, Then it would show 0dv/dt and not -dv/dt.
Also when the Voltage threshold is set to 0.90V it should not have triggered at all. To me it looks more like a Bug.

[UniSoft]

Just guessing, but we're probably staying below the limits of the resolution of the ADC.

For sure

why not go for the "voltage" method of https://lygte-info.dk/project/Charger%20UK.html? Charge at CC, and periodically measure the voltage under 0 charge current.

That charger doesn't have relay, and have a protection diode.
I don't think that it is a good idea just to stop PWM without disconnect the battery...

no, Then it would show 0dv/dt and not -dv/dt.
Also when the Voltage threshold is set to 0.90V it should not have triggered at all. To me it looks more like a Bug.

What RD60xx model?
Need to see the graphic, to understand what happens.
PSU detects the peak of output voltage, and "-dV/dT" settings sets the Voltage threshold from the peak.

I am also tested but only on 6018.
When I set -dV/dT to 0.03V, it triggered too early, after about 54 minutes, it looks like the output is too noisy.
Then I set -dV/dT to 0.05V, it triggered after 02h 33m with 0dV/dT state, analyzing graph can see the same problem, output noise.
I will try to add some filtering.

[bateau020]

why not go for the "voltage" method of https://lygte-info.dk/project/Charger%20UK.html? Charge at CC, and periodically measure the voltage under 0 charge current.

That charger doesn't have relay, and have a protection diode.
I don't think that it is a good idea just to stop PWM without disconnect the battery...

How about slowly lowering the voltage to a cutoff voltage and looking if the current is 0?

[Dos9570]

Hey, I use a RD6006.
As you can see, after exactly 5 minutes, the Supply goes into -dv/dt mode. Yet the -dv/dt was set to 0.5V. (which I Know is to high)

[Wintel]

Just guessing, but we're probably staying below the limits of the resolution of the ADC.

What RD60xx model?
Need to see the graphic, to understand what happens.
PSU detects the peak of output voltage, and "-dV/dT" settings sets the Voltage threshold from the peak.

I am also tested but only on 6018.
When I set -dV/dT to 0.03V, it triggered too early, after about 54 minutes, it looks like the output is too noisy.
Then I set -dV/dT to 0.05V, it triggered after 02h 33m with 0dV/dT state, analyzing graph can see the same problem, output noise.
I will try to add some filtering.

Hi UniSoft,

How to set to diaplay 0.000 V and 0.000 A in the RD6018?

My RD6018 only can display 0.00 V and 0.00 A in the menu with RD60181_V1.34.1n firmware.

Thanks!

[Dos9570]

In the Menu under the Home Icon, you'll find it as "Leading Zeros"

[Cliff Matthews]

I mentioned UniSoft firmware to Andreas Spiess () and he replied in the comments that he's is looking for alternate PC control software.
Can anyone provide a URL we can give him for the latest revision? Perhaps he'll do a review on his channel. I see he actually reads comments, that's a good thing for a well known YouTube producer.. finding time to read them all!

[AaronR]

As far as I know there is no  alternate PC control software.
The only code mentioned in this thread is new alternate Firmware for the power supply it's self.
I would love to see a better desktop PC software for this unit, but that's not being discussed here.
P.S. that video is outdated the PC wifi connection works fine now.
The PC software isn't all that great lol.

[HKJ]

As far as I know there is no  alternate PC control software.

There is always TestController: https://www.eevblog.com/forum/testgear/program-that-can-log-from-many-multimeters/
It supports RD6006 & RD6012, the 18 version needs a few extra lines in the definition file and nobody has posted them yet.

If UniSoft has extended the protocol it will also be fairly easy to make extended versions of the definitions to support the extra functionality.

[bateau020]

There are many options here, unfortunately not all really super user friendly or really stable:
* https://github.com/Baldanos/rd6006
* https://sigrok.org/wiki/Riden_RD6006
* https://github.com/msillano/RD6006-Super-power-supply
and others (even some ESP8266 specific firmware), all modbus protocol based.

[UniSoft]

I would love to see a better desktop PC software for this unit, but that's not being discussed here.

So, let's discuss alternative desktop PC software... why not?
What are you missing in the current software? What would you like to change or add?
I thought to write my own utility for PC.

[beliar_666]

Hello,
i´m new here. I just came to this Forum, cause i get a RD6012 and wanted to know what is possible with it. I Know most tools from china has the ability to use Custom/Modified Firmwares with a much better usabiliy. So i found @UniSoft s Firmware. Great work.

Now you asked what to change in the PC Software, so i would tell you my ideas.

I think the look should be more professionel. The Connection Part should be a seperate tab. If there are Turnknobs, they should be usable, and not only optical style elements. Brightness and timesync also should be on the Settings tab.
Also i think it would be great to have the diagram/Curve as a fullscreen view with the posibility to take direct snapshots. And also i think there should be more Data than only OV and OA.

So thats what i think about this. Hope my english was good enough.... ;-)

[AaronR]

I would love to see a better desktop PC software for this unit, but that's not being discussed here.

So, let's discuss alternative desktop PC software... why not?
What are you missing in the current software? What would you like to change or add?
I thought to write my own utility for PC.

Thank you for considering this, I'll revisit the PC software and compile a wish list... :-)