Apparatus and method for detecting foreign object in wireless power transmitting system

摘要

The present invention is related to an apparatus and method for detecting a foreign object in a wireless power transmitting system. The present document discloses a wireless power transmitting apparatus comprising a primary core block being coupled with a secondary core block installed in a wireless power receiving apparatus and transmitting wireless power to the wireless power receiving apparatus through magnetic induction or magnetic resonance; an electric driving unit applying an AC (Alternating Current) signal required for the primary core block to transmit the wireless power; a control unit being connected to the electric driving unit and generating a control signal for controlling the AC signal; and a current measurement unit measuring a current flowing into the primary core block and obtaining a current measurement value converted to a numeric value relevant for the control unit to analyze the current.