/diy/ - Do It Yourself

>>1737829
Reee I said it in the last thread. You can generate a analog output with the arduino pwm.
>measure current
>compare current
>send pwm output to the current control circuit

And R3 is used to measure the output voltage, not the current. Usually converters have a sense resistor somewhere for this. (If you know your power electronics you can control current with a single feedback pin, but I did not read the datasheet for that IC so).

Digital Pots are not good for this! Get your basics straight and stop overcomplicating things with stuff like stepper controlled pots and so on. Just delete the capacitor bank part of the pic. Some dude mentioned dave's power supply video and what he said also applies!