Patent ID: 9692487
Date: 2017-06-27
CPC Classifications: H02J,H04B

Claim:
1. A wireless power transmitter for transmitting power by wireless to a terminal, comprising: a power conversion unit configured to form a wireless power signal for wireless power transfer using power supplied from a power supply unit; and a power transmission control unit configured to detect an orientation of the terminal, based on a change in the power for forming the wireless power signal and regulate a characteristic of the supplied power, based on orientation information of the terminal, wherein the characteristic of the supplied power is regulated so that a wireless power transmission method is converted, and the wireless power transmission method includes inductive coupling or electromagnetic resonance coupling, and wherein the wireless power transmission method is converted from the inductive coupling to the electromagnetic resonance coupling when axes of coils of the wireless power transmitter and the terminal cross each other due to a change in the orientation of the terminal.