| 摘要 |
PROBLEM TO BE SOLVED: To prevent authentication failure caused by the movement of a power reception device to the outside of a power receivable range during power transmission of power transmission for authentication at a charging stand that performs wireless power transmission of power for detection to detect a placed object, power transmission for authentication for radio communication, and charging power transmission for charging in the order corresponding to this.SOLUTION: A power transmission device outputs power for detection intermittently and repetitively, and outputs power transmission for authentication if a power receiving object is detected during multiple times of consecutive output.SELECTED DRAWING: Figure 4 |
