Wireless power transmission device and control method therefor
摘要
說明書
For an example associated with the present disclosure, the wireless power transmitter may further include a display unit configured to display an amount of power consumed by the external metal material.
For an example associated with the present disclosure, the power transmission control unit may detect the total amount of lost power based on a frequency value for driving an LC resonant circuit of the wireless power transmitter, an inductor (L) value of the LC resonant circuit of the wireless power transmitter, and a current value of the LC resonant circuit of the wireless power transmitter.
For an example associated with the present disclosure, the current value of the LC resonant circuit of the wireless power transmitter may indicate a difference value between a first current value of the inductor (L) detected at a first time point when a first predetermined time or a predetermined number of cycles has passed from a time point when the LC resonant circuit of the wireless power transmitter stops while being driven and a second current value of the inductor (L) detected at a second time point when a second predetermined time or a predetermined number of cycles has passed from a time point when the LC resonant circuit of the wireless power transmitter stops while being driven, and the first time point is earlier than the second time point.
