公开(公告)号：US11271426B2

公开(公告)日：2022-03-08

申请号：US17096169

申请日：2020-11-12

Applicant: KOREA ADVANCED INSTITUTE OF SCIENCE AND TECHNOLOGY

Inventor： Seungyoung Ahn ,  Chan Jun Park ,  Jaehyoung Park ,  Yujun Shin ,  Sungryul Huh ,  Bomson Lee

IPC: H02J50/05 ,  H02J50/00 ,  B64C39/02

Abstract: According to one embodiment of the present disclosure, there is provided a capacitive coupler structure, including: power transmitters, each including a first metal plate and a second metal plate, and power receivers, each including a third metal plate and a fourth metal plate, where the first metal plate and the third metal plate form a first capacitor, the second metal plate and the fourth metal plate form a second capacitor, and each center of gravity of the first metal plate through the fourth metal plate is aligned on a single vertical line, and the first metal plate through the fourth metal plate form capacitive couplings.

公开(公告)号：US10971956B2

公开(公告)日：2021-04-06

申请号：US16566595

申请日：2019-09-10

Applicant: Korea Advanced Institute of Science and Technology ,  University-Industry Cooperation Group of Kyung Hee University

Inventor： Seungyoung Ahn ,  Jaehyoung Park ,  Bomson Lee ,  Hongkyun Kim

IPC: H02J50/70 ,  H02J50/12 ,  H02J50/40 ,  G01R33/02 ,  H05K9/00

Abstract: A leakage magnetic field shielding device includes: a leakage magnetic field determining unit for determining phase and magnitude of a leakage magnetic field based on information obtained from a power supply device and a current collector device; a shielding current controller for determining a shielding current based on the phase and magnitude of the leakage magnetic field and supplying the determined shielding current to the leakage magnetic field shielding device; and a shielding unit for shielding the leakage magnetic field by generating a shielding magnetic field in accordance with the supply of the shielding current. The shielding unit has a multiple resonance characteristic depending on an arrangement of capacitors and coils and is disposed to surround the power supply device or the current collector device. The shielding magnetic field has resonance frequencies canceling magnetic fields corresponding to fundamental frequency and multiple frequency of the leakage magnetic field.