| 摘要 |
<p>The present invention relates to a wireless power transmitting device using variable resonance frequency and a method for same, capable of controlling the resonance frequency of the wireless power transmitting device, which transmits power wirelessly, according to the resonance frequency of a power receiving device. The wireless power transmitting device, according to the present invention, comprises: a resonance frequency varying unit for varying the resonance frequency of a power signal to be transmitted; a power signal transmitting unit for generating a power signal according to the resonance frequency varied by the resonance frequency varying unit, and wirelessly transmitting same to a power receiving device; and a control unit for obtaining, by communicating with the power receiving device through the power signal transmitting unit, an information signal of the power receiving device, controlling the resonance frequency of the resonance frequency varying unit according to the obtained information signal, generating a power signal from the power signal transmitting unit according to the resonance frequency of the resonance frequency varying unit, and for controlling so that the power signal is transmitted to the power receiving device.</p> |
