IC) that generates 5V for the microcontroller and 18V for the cooling fan and IGBT gate drive. Microcontroller (MCU):
: AC mains (220V–240V) enters through a fuse (usually 10A–15A) and a varistor for surge protection. chk-v9.04g circuit diagram
Never touch any part of the exposed board while it is connected to the wall. IC) that generates 5V for the microcontroller and