high voltage ground Isolation

[rangabanadara]

I planned constant power load control circuit. All parts are fully operational in computer simulation. But I want to Isolate High voltage (180V DC ) DC ground (GND 2) and low voltage (12V/3.3V DC) DC Ground (Gnd) What can be done for this? How to solve this problem?

Circuit Diagram

[HarryA]

I used an optocoupler between an Arduino Uno and a mosfet at 350 volts for an capacitor discharge ignition circuit.

[ivan234]

I personally play slot machines only when I have nothing to do, for me it is pure entertainment. But for example yesterday in slot machines syndicate casino https://syndicatecasinoaus.com/  won a good amount. I do not know how I was so lucky, but it was a very pleasant surprise