Hi everyone, now I'm looking for the current transformer to provides the power in case of single-wire (Neutral missing)
so I unofficially call "CT power supply" circuit as attached files
Circuit spec:
- when Iprimary = 1A to 60A , Output must be 3.3Vdc (load: 5mA) for supply MCU

So I would like to know how to select CT burden for this circuit?

 

Please, one thread per topic. You already have one here:

https://forum.allaboutcircuits.com/threads/how-to-select-ct-burden-for-ct-power-supply.144426/

Besides, this doesn't seem like a wireless or RF question.