POWER SUPPLY DEVICE AND POWER SUPPLY SYSTEM

A power supply device includes a first coil part and a second coil part, a power transmission request part configured to transmit a power transmission request to the movable object, a power reception information acquisition part configured to acquire first power reception information of the first coil part and second power reception information of the second coil part, a movable object position determination part configured to determine whether the movable object is positioned at a first power supply position or a second power supply position, and a power transmission control part configured to cause the first coil part to transmit power when it is determined that the movable object is positioned at the first power supply position, and to cause the second coil part to transmit power when it is determined that the movable object is positioned at the second power supply position.