| 摘要 |
A contactless power supply device (1) contains a power transmission device (10) and sends an alternating magnetic flux from a primary coil (30) provided in the power transmission device (10) to a secondary coil (40) provided in the power receiving device (20). The power transmission device (10) is provided with multiple primary coils (31-33) electrically connected in parallel. The power transmission device (10) changes the form of use of the multiple primary coils (31-33) in accordance with a signal received from the power receiving device (20). |
