My question is how to separate the 2 grounds. I want to separate the ground for the high-power LDO from the ground for the low-power LDO. I need to use an optocoupler at 24V, and I want to isolate it from my ESP32. One issue I encountered was that the grounds for the optocoupler and the ESP32 were c…

[image] leansolution: Can surges goes to esp32 from Collector/Emitter to base of transistor? No but for extra protection you can put a TVS diode across the transistor from collector to emitter and pick a transistor with a high Vce rating

Separate out Grounds fom eachother

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jim-p May 26, 2025, 7:51am 6

As I already said no you cannot.

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Separate out Grounds fom eachother

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