CHARGING DEVICE AND OPERATING METHOD THEREOF

A charging device (100, 300) and an operating method thereof are provided. The charging device (100, 300) is installed to a power system (200, 400) through a first power line (101, 301), a second power line (102, 302) and a ground line (103, 303). The charging device (100, 300) includes a first processor (110, 310), a second processor (120, 320) and a microcontroller (130, 330). The first processor (110, 310) is coupled to the first power line (101, 301) and the second power line (102, 302) and generates a first voltage determination signal. The second processor (120, 320) is coupled to the second power line (102, 302) and the ground line (103, 303), and generates a second voltage determination signal. The microcontroller (130, 330) is used to determine a power standard of the power system (200, 400) according to the first voltage determination signal and the second voltage determination signal.