RuiDeng Riden RD6006P DC power supply - Page 1
Forum section: electronics / testgear

author: UniSoft
author_rank: Frequent Contributor
timestamp: February 22, 2021, 11:05:02 pm
content: New 5-digit power supply RD6006P is released.https://www.aliexpress.com/item/1005002185722889.htmlhttps://budgetlightforum.com/node/76643Compared to RD6006, RD6006P hardware changes a lot though the look same from the front panel,so RD6006 cannot just be updated to RD6006P just by updating the firmware.Thread about RD6006, RD6012, RD6018 ishere...

author: UniSoft
author_rank: Frequent Contributor
timestamp: February 22, 2021, 11:20:11 pm
content: I drew a schematic of RD6006P... (Draft)I drew it without removing the components from the PCB, sothere may befor sure there are errors.If you see anything, let me know, I can double-check certain parts of the circuit, until I assembled the power supply.

author: UniSoft
author_rank: Frequent Contributor
timestamp: February 22, 2021, 11:32:56 pm
content: RD6006P...ADC: Dual 24-bitTM7707(didn't found English datasheet).DAC: Dual 16-bitDAC8562

author: UniSoft
author_rank: Frequent Contributor
timestamp: February 22, 2021, 11:34:11 pm
content: If anyone interested...Using a couple of100W COB LEDas a load,11.8V 6A11.2V 3A10.6V 1A10.2V 100mAUsing DL24P as a load... it adds some noise and ripple10V 1A10V 3A30V 5A55V 3A

author: UniSoft
author_rank: Frequent Contributor
timestamp: February 22, 2021, 11:35:22 pm
content: button LEFT/RIGHT switches the screen layout...menu design, strings, and even font was copied from my firmware...screen layoutsmenu

author: Cliff Matthews
author_rank: Unknown
timestamp: February 23, 2021, 07:37:16 pm
content: Makes one wonder if one is already on it's way to Sydney?

author: ElektroHS
author_rank: Contributor
timestamp: March 16, 2021, 11:36:22 am
content: It looks much better than 6012 that I bought a few weeks ago... Will wait for more review and maybe will change to 6006P...

author: dougg
author_rank: Regular Contributor
timestamp: March 23, 2021, 04:12:41 pm
content: Got my RD6006P and it looks good so far. It came with V1.38 firmware on it and I miss some of the UniSoft "extras". Also have a RD6018 with the 800 Watt AC power brick and I got the RD600P without an AC adapter, so I use the RD6018 to drive the RD6006P.The attachments show similar tests done on both power supplies: the reaction time from a short circuit until CC mode cuts in. The horizontal scale is the same: 50 microseconds. The "6P" has similar inrush (due to the short circuit) and settles near 0 Amps before jumping to the CC value of 1 Amp, all within 100 microseconds. The "18" takes around 270 microseconds to settle at the CC value of 6 Amps. The current is measured with a Fluke 80i-110s and shows the "18" peaking at 110 Amps while the "6P" peaks at 34 Amps.Also did some measurements with OCP and the "18" and "6P" seems to be the same: OCP is done in software and is much slower tripping than CC mode reaction time.

author: Algasman
author_rank: Contributor
timestamp: May 05, 2021, 06:57:07 pm
content: Looks like an impressive piece of hardware!Can some owner say something about the fan noise?Are the fans temperature controlled?(yes, but on/off or the hotter the faster?)Three in total can make a lot of noise.

author: UniSoft
author_rank: Frequent Contributor
timestamp: May 27, 2021, 02:39:42 am
content: Finally I assembled my RD6006P...standby power 5VAdded 5V TVS...I made a serious mistake and applied 12V instead of 5V to the standby power, so this TVS died (short circuit) and saved everything else.And here you can see how I connected a custom LED (red LED under the ON/OFF button).And also a power switch control signal.Power switch--- And some screenshots of my firmware ---Digits Style = 7-Seg v2Digits Style = 30x60Digits Style = 24x48

author: niekproductions
author_rank: Contributor
timestamp: May 27, 2021, 01:11:39 pm
content: @UniSoftThis looks very promising! Any measurements on load transients (voltage excursions upon applying a positive and negative load step)?I'm curious how the linear end stage handles that.

author: UniSoft
author_rank: Frequent Contributor
timestamp: May 27, 2021, 04:10:20 pm
content: @niekproductionsQuote from: niekproductions on May 27, 2021, 01:11:39 pmYou can see review, but in russian (use google translator)https://mysku.ru/blog/aliexpress/85343.htmlhttps://translate.google.com/translate?sl=ru&tl=en&u=https://mysku.ru/blog/aliexpress/85343.html

author: niekproductions
author_rank: Contributor
timestamp: May 27, 2021, 04:22:53 pm
content: Quote from: UniSoft on May 27, 2021, 04:10:20 pmThat is a very comprehensive review, thank you! Ordered one right away

author: duckduck
author_rank: Frequent Contributor
timestamp: June 22, 2021, 08:22:19 pm
content: Quote from: AaronR on February 04, 2021, 09:27:23 pmBought a RD6006P and was unable to connect to it via USB. Windows 10 version 21H1 running on x64.Thank you AaronR (in the main RD6006 thread), installing the driver worked for me. I now see that the driver has loaded for my USB serial device. Hey people, make sure to select the new COM port that gets added. I wish Ruideng would make a note of this driver in their docs so I didn't waste timeEDIT:I installed the latest UniSoft firmware (1.38.1a). Looks good so far. I really like that I can read the input voltage now (it is larger) and it has an additional digit. Thank you UniSoft for your work!UniSoft posts his firmwares in the main RD6006P thread. Here is the latest (the 60065is for the RD6006P). Click on the link to go to his post where the firmware files are attached:Quote from: UniSoft on May 30, 2021, 04:37:21 pmHow do you install the UniSoft firmware? How do you use the new UI? sunkmail has you covered. Thank you sunkmail (et al.) for your work!Quote from: sunkmail on February 25, 2021, 06:14:03 pm

author: duckduck
author_rank: Frequent Contributor
timestamp: June 26, 2021, 02:02:53 am
content: Quote from: Algasman on May 05, 2021, 06:57:07 pmFan in the back of the case that is sold for the unit is normally off until things get fairly warm, then it switches to low speed, then if the unit gets very hot it switches to high speed. The only way I can get it to high speed is to run it at full power 60V, 6A into my DC load which has a loud fan, and the RD is not very loud in comparison. Of course everything is easy to get to in the case so you can modify it however you like or use a different case / power supply / fan entirely.

author: duckduck
author_rank: Frequent Contributor
timestamp: July 02, 2021, 07:27:27 am
content: Hey, UniSoft, I am working on a device file for the RD6006Pfor HKJ's wonderful testController PC software:Quote from: HKJ on March 25, 2020, 10:48:51 amWould you happen to have any information on how the RD6006Pdiffers from the plain old RD6006 when reading and writing via modbus? Ideally I'm looking for a reference like this (https://github.com/msillano/RD6006-Super-power-supply/blob/master/RD6006_prtotocol_en.pdf) which is for the plain old RD6006, but for the RD6006P. Thank you.

author: JorgH
author_rank: Newbie
timestamp: July 05, 2021, 10:46:46 am
content: Flashed with UniSoft's firmware (Thanks for making great stuff!)Screen seems to show artefacts and is rotated by 90 degrees.My unit came shipped with V1.39 Firmware (v1.12 bootloader).Everything is fine after flashing it back to stock v1.39.Thoughts?

author: UniSoft
author_rank: Frequent Contributor
timestamp: July 07, 2021, 03:41:54 pm
content: Quote from: duckduck on July 02, 2021, 07:27:27 amAll the same...

author: UniSoft
author_rank: Frequent Contributor
timestamp: July 07, 2021, 03:45:34 pm
content: Quote from: JorgH on July 05, 2021, 10:46:46 amI think they use some new LCD display...This also explains why they recently released new firmware for all models, and delete old version.I will check, and fix it in next release.

author: SteveyG
author_rank: Unknown
timestamp: July 10, 2021, 07:04:05 pm
content: Quote from: UniSoft on February 22, 2021, 11:20:11 pmGreat stuff. I will take a look through.I did a review a while back, but I've not yet found any need for the additional accuracy, though given the price difference it's a no brainer to go for the precision model.

author: UniSoft
author_rank: Frequent Contributor
timestamp: July 19, 2021, 02:57:02 pm
content: New firmware is here:https://www.eevblog.com/forum/testgear/ruideng-riden-rd6006-dc-power-supply/msg3610426/#msg3610426

author: duckduck
author_rank: Frequent Contributor
timestamp: July 19, 2021, 06:50:49 pm
content: Quote from: UniSoft on July 19, 2021, 02:57:02 pmTested out a few things. Seems to work great on mine with the old style LCD. I just changed the home screen layout and noticed the fan icon that comes up when the the fan is running. That is very nice. Thanks again for your work.

author: ExtraThiccBoi
author_rank: Contributor
timestamp: September 06, 2021, 04:41:26 pm
content: Hey, I really like your work, how well does it run with a linear power supply? I have some old audio amp parts, 55V 250VA transformer, 24000uF worth of caps and 25A rectifier. Was thinking about putting them together with the RD6006, but now I learned there is the P model. Costs 30 dollars more though. Is it really worth it?

author: Cliff Matthews
author_rank: Unknown
timestamp: September 06, 2021, 05:10:09 pm
content: @Extra - Transfo's can't go above ~46 volts AC so rectified, DC input is ~5 volts under 70v rating of input capacitors.

author: ExtraThiccBoi
author_rank: Contributor
timestamp: September 06, 2021, 05:20:37 pm
content: It's 55V rectified

author: luudee
author_rank: Frequent Contributor
timestamp: October 17, 2021, 03:39:14 pm
content: 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

author: UniSoft
author_rank: Frequent Contributor
timestamp: October 19, 2021, 06:45:01 pm
content: Quote from: luudee on October 17, 2021, 03:39:14 pmRD6012P will be released soon,they already announced ithttps://item.taobao.com/item.htm?spm=a1z10.3-c-s.w4002-22464327644.68.3f112636IzSCpA&id=649408312817

author: UniSoft
author_rank: Frequent Contributor
timestamp: November 06, 2021, 11:09:23 am
content: RD6012P already available for order (now have discount 2021.11.5 - 2021.11.10 PST)https://aliexpress.ru/item/1005003472332331.htmlhttps://budgetlightforum.com/node/79655PS:No custom firmware is planned for the RD6012P.However, as well as investing in its purchase.

author: Stefan H.
author_rank: Newbie
timestamp: November 14, 2021, 01:46:07 pm
content: 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?@UniSoftIs the hardware or software of the 6006P and 6012P so much different or why is it not planned?

author: UniSoft
author_rank: Frequent Contributor
timestamp: November 14, 2021, 07:15:08 pm
content: Quote from: Stefan H. on November 14, 2021, 01:46:07 pmI 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.

author: ceut
author_rank: Regular Contributor
timestamp: April 15, 2022, 05:30:47 pm
content: 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 problemFW 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:

author: ceut
author_rank: Regular Contributor
timestamp: April 16, 2022, 12:34:25 am
content: Quote from: UniSoft on November 14, 2021, 07:15:08 pmHello,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

author: UniSoft
author_rank: Frequent Contributor
timestamp: April 17, 2022, 06:29:22 pm
content: Hello,Quote from: ceut on April 16, 2022, 12:34:25 amNot,In RD60xxP all power part controlled by another MCU...

author: ceut
author_rank: Regular Contributor
timestamp: April 17, 2022, 06:49:48 pm
content: That is a very bad newsI 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)

author: UniSoft
author_rank: Frequent Contributor
timestamp: April 17, 2022, 08:25:02 pm
content: Quote from: ceut on April 17, 2022, 06:49:48 pmYes, MCU STM8S003Quote from: ceut on April 17, 2022, 06:49:48 pmThe main firmware is in the U4 MCU STM32F103... (256KB Flash)External Flash U8 used only for store the logo, nothing else.

author: ceut
author_rank: Regular Contributor
timestamp: April 18, 2022, 05:05:05 pm
content: Quote from: UniSoft on April 17, 2022, 08:25:02 pmThank 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 valueI 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 meAnd 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

author: UniSoft
author_rank: Frequent Contributor
timestamp: May 19, 2022, 03:12:53 pm
content: Hello,Quote from: ceut on April 18, 2022, 05:05:05 pmThey released new version...http://www.ruidengkeji.com/rdupdate/firmware/RD60065/RD60065_V1.41.bin2022.05.17 V1.41 1.Optimize the small spike at the moment of opening the output.Did you try it?

author: ceut
author_rank: Regular Contributor
timestamp: May 19, 2022, 09:19:34 pm
content: Quote from: UniSoft on May 19, 2022, 03:12:53 pmHello,No I have not seen this new FWThey 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

author: ceut
author_rank: Regular Contributor
timestamp: May 20, 2022, 03:39:19 pm
content: Quote from: UniSoft on May 19, 2022, 03:12:53 pmWow they have doneexactlywhat they told and sent meVery great job from them !And I'm super happy because I have contributed for the improvement of this really great little power supplyNow, I have to waityourfirmwareFirst 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

author: Sigi_cz
author_rank: Newbie
timestamp: October 01, 2022, 12:54:27 am
content: 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 themThanks

author: UniSoft
author_rank: Frequent Contributor
timestamp: October 02, 2022, 12:45:53 pm
content: Quote from: Sigi_cz on October 01, 2022, 12:54:27 amThere is no list of features.All features are described in areference document.RD60xx Custom Firmware ReferenceHereyou can download an official manual(s)...http://www.ruidengkeji.com/inst/RD6006P.pdfhttp://www.ruidengkeji.com/inst/RD6012P.pdfNote:forRD6012Pthere is no custom firmware!

author: gljuk
author_rank: Newbie
timestamp: May 04, 2023, 05:15:04 pm
content: 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?ThanksAlexupdate: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

author: Surgo
author_rank: Newbie
timestamp: December 01, 2023, 10:56:08 pm
content: 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?

author: electr_peter
author_rank: Unknown
timestamp: December 02, 2023, 09:53:08 am
content: Most probably it is a SMD fuse replacement. There is a SMD type fuse holder on PCB.

author: myf
author_rank: Regular Contributor
timestamp: December 02, 2023, 06:26:35 pm
content: Hello,I recently purchased an rd6012p power supply and also received this tiny component in its little pouch.The user manual can be found athttp://ruidengkeji.com/inst/RD6012P.pdfThe 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.

author: Surgo
author_rank: Newbie
timestamp: December 02, 2023, 09:40:20 pm
content: Thanks! Hadn't even considered that it might be a fuse. Never seen a SMD fuses before...makes perfect sense in retrospect!

author: B83C
author_rank: Newbie
timestamp: April 06, 2025, 03:48:54 am
content: Planning to get one here, but the fact that it is using micro b instead of usb c is a real bummer. Has anyone here done some mods on the usb port?

author: yangxl
author_rank: Newbie
timestamp: July 26, 2025, 07:44:04 am
content: First of all, thank you for the schematic diagram. However, there are some parts I don't understand. What's different from the schematic diagrams I've seen before is that the signals in the diagram are all connected to the same thick line. How should I distinguish the direction of the signals? For example, the LCD_SDO signal from pin 7 of U30 and PWR_RX are connected to this thick line at the same point. Does that mean they are connected together?

author: UniSoft
author_rank: Frequent Contributor
timestamp: July 26, 2025, 11:29:28 am
content: Quote from: yangxl on July 26, 2025, 07:44:04 amThis calling: "Bus", and the Bus have "Bus Entries"Quote from: yangxl on July 26, 2025, 07:44:04 amBy name of signal (Net Labels).So Bus Entry LCD_SDO connected with another Bus Entry LCD_SDO, on the same Bus (can be multiple entries).Quote from: yangxl on July 26, 2025, 07:44:04 amDoesn't mean... There is noreddot (junction dot).if wires on different nets simply cross without a junction dot, it signifies they are not connected.Quote