| 摘要 |
PROBLEM TO BE SOLVED: To provide a non-contact power receiving device capable of surely protecting electrical equipment that is connected to a power receiving coil, from overvoltage.SOLUTION: The non-contact power receiving device includes a power receiving section 100, a battery 300, a non-contact battery charger 150, cutoff relays RY1 and RY2, a communication section 510 and a control section 500. The power receiving section 100 includes a power receiving coil 752 and receives power supplied from a power transmitting device 90. The non-contact battery charger 150 includes at least one of a rectifier, a converter and a filter and is provided between the power receiving section 100 and the battery 300. The cutoff relays RY1 and RY2 are provided between the non-contact battery charger 150 and the power receiving section 100. The control section 500 makes the communication section 510 transmit a signal requesting power transmission to the power transmitting device 90 with second power smaller than first power for charging the battery 300, and checks whether the cutoff relays RY1 and RY2 are welded while using a voltage receiving the second power transmitted from the power transmitting device 90 by means of the power receiving coil 752. |
