This is dumb but I wanna ask, Is it okay to use Arduino to power this High Voltage Boost Converter
the output voltage of this taser depends on the input voltage
so I'm thinking of using analogWrite function to adjust the input voltage from Arduino
I'm afraid that this taser can draw current which can damage the Arduino Board, is it?
just really curious.
Hi,
AnalogWrite does not produce an analog output, it produces a PWM output.
Having a source of EMP near electronics may cause your controller to either fail or reset and so not give you any level control.
Tom... 
HizonPastor:
I'm afraid that this taser can draw current which can damage the Arduino Board, is it?
Well, you most certainly cannot "power it" from an Arduino board in any manner. Arduino boards are not "power supplies".
If you have a power supply for it, you can control it with the circuit above.
By the way, "N-channel MOSFET" should read "N-channel Logic Level MOSFET" . 