公开(公告)号：US20230275466A1

公开(公告)日：2023-08-31

申请号：US18313432

申请日：2023-05-08

Applicant: Korea Advanced Institute of Science and Technology

Inventor： Seungyoung AHN ,  Jedok KIM ,  Jangyong AHN

IPC: H02J50/12 ,  H02J50/40 ,  H02J50/00

CPC classification number: H02J50/12 ,  H02J50/402 ,  H02J50/005 ,  H01F38/14

Abstract: A wireless power transmission apparatus comprises a feeding coil configured to be wound a plurality of times with respect to a center, generate a time-varying magnetic field according to operating frequency of a supply power, and wirelessly transmit an electrical energy to a collecting coil exposed to the time-varying magnetic field through magnetic inductive coupling; and a feeding auxiliary coil configured to be wound along with the feeding coil a plurality of times with respect to the same center as the feeding coil, generate an auxiliary magnetic field with a phase that affects the feeding coil, and provide additional inductance generated by the auxiliary magnetic field.