LEAKAGE CURRENT DETECTING DEVICE, LEAKAGE CURRENT DETECTING METHOD, AND ELECTRIC VEHICLE

摘要

A leakage current detecting device for a battery included in an electric vehicle, according to the present invention, transfers a first voltage, corresponding to a voltage between an anode terminal of the battery and a chassis of the electric vehicle, to an analog-to-digital converter through a capacitor. The leakage current detecting device transfers a second voltage, corresponding to a voltage between a cathode terminal of the battery and the chassis, to the analog-to-digital converter through the capacitor. The analog-to-digital converter outputs, by using the anode terminal as a ground, digital signals indicating the first voltage and the second voltage. The leakage current detecting device determines, on the basis of the digital signals, the first voltage and the second voltage, and then detects a leakage current between the battery and the chassis on the basis of the first voltage and the second voltage.