Electronics > Open Source Hardware

Designing an Opensource DC Load

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OpenWare:
I am designing Open source DC load with multi channel /Modular design, It would have a touch screen interface along with encoders knobs for fast selection and toggle for menu.

Suggestions are welcome
HMI interface - STM32H750 With 5" or 7" Touch Panel
DAC - 16 bit DAC
Resolution- 0.1mA @ 6.55A OR 1 mA is 10A.
Working Voltage 150v
Working Current 6.5 AMP -10 Amp
I need input from the community on the consideration taken to build a precise and accurate DC load

Roehrenonkel:
Hi OpenWare,
 
welcome to the forum.
Make it understand SCPI,
over  RS232, LAN, GPIB or so.

Good luck

Doctorandus_P:
Building a DC load is a common project, there are probably already 100+ of them floating around the internet. You can look at several of them to get some inspiration on how to build one yourself.

https://html.duckduckgo.com/html?q=open+source+dc+load

OpenWare:
Agreed with you, there are literally tons of project but accuracy and precision is lacking in nearly all of them.

RoGeorge:
You may want to make it work in all four quadrants, those are rather rare.  Search for SMU.  Some models have service manuals and schematics available online, for inspiration.

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