WIRELESS POWER TRANSMISSION DEVICE AND POWER RECEIVING DEVICE

摘要

A wireless power transmission device (1) supplies power to a power receiving device (2) including a second self-resonant coil (202) having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a second central axis. The wireless power transmission device (1) includes: a first self-resonant coil (102) having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a first central axis and supplying power to the second self-resonant coil (202) not being on the first central axis; and a third self-resonant coil (302) having a winding structure in which a conductive wire is wound one turn or more perpendicularly to a third central axis not being orthogonal to the first central axis and disposed on the first central axis. The degree of freedom of arrangement of the power receiving device (2) with respect to the wireless power transmission device (1) can be improved.