POWER SUPPLY DEVICE, VEHICLE, AND CHARGING SYSTEM

摘要

A power supply device (300) supplies electric power from an external power source (500) to a vehicle (100). The power supply device (300) includes a control device (350) that determines whether to permit supply of electric power to the vehicle (100), based on a difference between a value of electric power supplied to the vehicle (100) and a value of received electric power, the value of the received electric power being included in a signal received from the vehicle (100) through communication.