Patent ID: 9531442
Filing Date: 2016-12-27
CPC Classification: B60R,H04B

Claim Text:
1. A contactless power transmitting device that contactlessly transmits electric power to a power receiving device, comprising: a transmitter that transmits electric power at a transmission frequency which is variable; and a power transmission controller sets the transmission frequency, based on frequency information concerning a frequency of a broadcast wave transmitted from outside the contactless power transmitting device that is received at a position of the contactless power transmitting device, wherein: the power transmission controller sets the transmission frequency so that one of the transmission frequency and the frequency of the broadcast wave is different from an integer multiple of the other of the transmission frequency and the frequency of the broadcast wave; the contactless power transmitting device further includes a receiver that receives the broadcast wave; and the power transmission controller performs a frequency searching operation using the receiver, and determines the frequency information based on a strength of the broadcast wave received by the receiver.