| 摘要 |
An electric power transmission device transmits an electric power of a power supply to a battery. The electric power transmission device includes relay capacitor, power supply side switching element, and a battery side switching element. The relay capacitor is located between the power supply and the battery, and stores an electric power of the power supply. The power supply side switching element opens and closes a first electrical path between the power supply and the relay capacitor. The battery side switching element opens and closes a second electrical path between the relay capacitor and the battery. The power supply side switching element has a pair of ends in the first electrical path, one of which is connected to the relay capacitor and the other is not connected to another capacitor that is short-circuited with the relay capacitor when the power supply side switching element is closed. |
