Electronic device

An electronic device, comprising:

• a first power supply circuit which supplies power to a first load circuit through a first power supply line;
• a second power supply circuit which supplies power to a second load circuit through a second power supply line;
• a first resistor of which one end is connected to the first power supply line;
• a second resistor of which one end is connected to the second power supply line;
• a third resistor which is connected to the other ends of the first and second resistors;
• a monitor circuit which receives a monitor voltage through the third resistor, and
• a fourth resistor of which one end is connected to a line connecting the third resistor and the monitor circuit, and the other end is grounded, wherein a ratio of the resistance value of the first resistor and the resistance value of the second resistor is about two times, and the resistance value of the fourth resistor is four times a combined resistance value of the first resistor, the second resistor, and the third resistor,
• wherein the monitor circuit determines an abnormality of the first power supply line and the second power supply line on the basis of the monitor voltage.