Products > Test Equipment
Looking for a chinese bench power supply with open source firmware
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cedric!:
Hi All,

I would like to buy a bench power supply from china. I'm looking for a model that has been reverse engineered, and can therefore be re-flashed with open source firmware.

So far I've found "opendps", open firmware for these PSU's:
DPS5005 Uin:6-55V Uout:0-50V Iout: 0-5A Pout: 250W
DPS3003 Uin:6-40V Uout:0-32V Iout: 0-3A Pout: 96W
DPS3005 Uin:6-40V Uout:0-32V Iout: 0-5A Pout: 160W
DPS5015 Uin:6-60V Uout:0-50V Iout: 0-15A Pout: 750W
DP50V5A Uin:6-55V Uout:0-50V Iout: 0-5A Pout: 250W
DPS5020 Uin:6-60V Uout:0-50V Iout: 0-20A Pout: 1000W
https://hackaday.com/2017/03/07/open-source-firmware-for-a-cheap-programmable-power-supply/
https://johan.kanflo.com/hacking-the-dps5005/
https://github.com/kanflo/opendps
https://rdtech.aliexpress.com/store/group/DPS-digital-control-power-supply/923042_508466030.html
EEVblog #1265 - $53 360W Lab Bench PSU!

Are there other PSU's with open firmware?
dobsonr741:
Obviously your desire is the Riden open source firmware - does not exist yet.
The mega thread on Riden is here: https://www.eevblog.com/forum/testgear/ruideng-riden-rd6006-dc-power-supply/
Alternative firmware images posted frequently, however you can not build it from source. I won't comment on how those images might have came about.
nctnico:
Why specifically Chinese? https://www.crowdsupply.com/envox/eez-h24005
cedric!:

--- Quote from: nctnico on February 12, 2023, 04:58:26 pm ---Why specifically Chinese? https://www.crowdsupply.com/envox/eez-h24005

--- End quote ---

I can't buy that one. (Not even when I'm willing to spend 399+18 dollars to buy a complete kit.)
Chinese is not a requirement. Cheap and open firmware is. (Cheap electronics usually have awful firmware)
cedric!:

--- Quote from: dobsonr741 on February 12, 2023, 04:47:50 pm ---Obviously your desire is the Riden open source firmware - does not exist yet.
The mega thread on Riden is here: https://www.eevblog.com/forum/testgear/ruideng-riden-rd6006-dc-power-supply/
Alternative firmware images posted frequently, however you can not build it from source. I won't comment on how those images might have came about.

--- End quote ---

If the source is not available, or not complete, can we call it open source?
I am very hesitant to buy something without the ability to change the firmware myself. 
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