公开(公告)号：US10886783B2

公开(公告)日：2021-01-05

申请号：US16159818

申请日：2018-10-15

Applicant: WITS Co., Ltd.

Inventor： Se Joo Kim ,  Tae Seok Ko ,  Young Woon Choi ,  Joung Ho Son ,  Doo Young Song

IPC: H02J50/12 ,  H02M7/5387 ,  H01F38/14 ,  H02J7/02 ,  H02M7/48 ,  H02M7/487

Abstract: A wireless power transmission apparatus includes: an alternating current (AC) power output to convert input power into AC power and output the AC power; and a power transmitter including a plurality of resonators. The power transmitter receives the AC power and wirelessly transmits the AC power in a first operating mode in which two of the resonators are connected in series and the two resonators transmit the AC power, and in a second operating mode in which one of the resonators transmits the AC power.