Patent ID: 9350201
Filing Date: 2016-05-24
CPC Classification: H02J,H04B

Claim Text:
1. A wireless power transmission device, comprising: a determiner configured to determine a coupling frequency between a source resonator and a target resonator, based on a reflected wave received from the target resonator that is in response to a transmission signal transmitted from the source resonator to the target resonator, wherein the coupling frequency being an odd mode frequency, and wherein the odd mode frequency is less than a center frequency between the source resonator and the target resonator; and a controller configured to control a transmission frequency such that power is transmitted from the source resonator to the target resonator at the determined coupling frequency, wherein, the determiner scans a band of frequencies lower than the transmission frequency in response to the distance between the source resonator and the target resonator decreased, and the determiner scans a band of frequencies higher than the transmission frequency in response to the distance between the source resonator and the target resonator increased, for measuring the reflected wave.