COIL UNIT, AND POWER TRANSMISSION DEVICE AND POWER RECEIVING DEVICE USING THE COIL UNIT

摘要

PROBLEM TO BE SOLVED: To provide a coil unit suppressing an increase in footprints of a plurality of coils which are arranged for separate applications such as transfer of power and communication, and to provide a power transmission device and a power receiving device using the coil unit. SOLUTION: The coil unit includes a first coil L11 having an outer diameter of D1, and at least one second coil L12 having an outer diameter of D2 (D2