WIRELESS POWER TRANSMITTER, WIRELESS POWER RECEIVER AND METHOD FOR CONTROLLING EACH THEREOF

摘要

Provided is a method for detecting foreign materials except a wireless power receiver by a wireless power transmitter. The method for detecting the foreign materials according to the present invention includes the steps of: receiving power consumption information from the wireless power receiver; calculating a power loss based on the power consumption information from the wireless power receiver; determining whether the power loss exceeds a preset threshold value; and controlling the transmission power of the wireless power transmitter by determining that the foreign materials are on the wireless power transmitter if the power loss exceeds the preset threshold value. [Reference numerals] (500) Wireless power transmitter; (510) Wireless power receiver; (520) Foreign materials