Hi all,
I'm playing with the idea to build a 2 quadrant power supply, a DIY version of the R&S NGM202. So far this is the main circuit that I came up with:
Simulation:
This is just a concept of the voltage control, current limiter and amplifier. I plan to add isolated control with STM32G4 + 16bit DAC + 24bit ADC, some protection, more current measurement options, and a nice front panel using STM32U5 + 4.3inch IPS LCD, just like the original R&S device. (No fast measurement option though with FPGA
)
What do you think about the presented concept? Is there any idea how can I improve this design?
Disclaimer: Although I'm an EE I spent most of my time as a Software Developer, so this is only hobby for me.