this post was submitted on 04 Sep 2025
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Current limiting (lemmy.world)
submitted 1 month ago by boojumliussnark@lemmy.world to c/askelectronics@discuss.tchncs.de
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I am wiring this up, and I would like to limit the current being drawn from 18v DC/DC converter.

What would be the simplest way of doing this?

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[–] socsa@piefed.social 3 points 1 month ago

Turning a voltage sensing relay into a current sensing relay is basically just putting a small resistor in parallel with the sensing pins and setting the cutoff accordingly. Or like the other poster said, using the pico to do the same thing with pwm control, or just driving a FET on the power feed if you want to avoid writing pwm control code.