Patent ID: 9614392
Date: 2017-04-04
CPC Classifications: H02J

Claim:
1. A wireless power transmission apparatus for tracking a charging capacity of each of a plurality of wireless power reception apparatuses in an environment in which the plurality of wireless power reception apparatuses are charged, the wireless power transmission apparatus comprising: a communication unit configured to receive information about either one or both of a charging support power and a requested power from each of the plurality of wireless power reception apparatuses; a controller configured to determine, based on a comparison between information about a power capacity of the wireless power transmission apparatus and the received information about the charging support power from each of the plurality of wireless power reception apparatuses, a charging capacity for a first wireless power reception apparatus among the plurality of wireless power reception apparatuses; and a power tracker configured to re-track, based on charging status information received from the plurality of wireless power reception apparatuses, the determined charging capacity.