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opto isolators circuits

Marcio
Expert 1650 points

Hello all,

I would like to ask for two isolators circuits.

One is for a microcontroller powered by 3,3Vdc read a input signal by 4N25 interpreting a signal of 0/24Vdc.

Another one is for a microcontroller powered by 3,3Vdc switch an output by 4N33 for a load of 24Vdc 50mA.

Thank you.