I need your help because I do not know much about electromagnetics.
I use Arduino UNO for control blinking LED(Cree CXA 1512 18v) fast(< 100KHz). Until now, i have used following circuit.
My project is changing micro controller Uno to RPI 3. However, If i just change it, circuit doesn't work. I think that the reason is RPi's GPIO output voltage is 3.3v. (And Arduino Uno is 5v, right?)
- Why this circuit doesn't work?
- So what should I do to make the circuit work with the RPI?
- I think i should change the MOSFET, do you have any product to recommend?
- And there are any other problems? (such as safety? I always afraid about electric shock....)