Title:
WIRELESS POWER TRANSMISSION APPARATUS, WIRELESS POWER RECEPTION APPARATUS, AND WIRELESS POWER TRANSMISSION SYSTEM USING AUXILIARY COIL
Document Type and Number:
WIPO Patent Application WO/2022/225376
Kind Code:
A1
Abstract:
A wireless power transmission apparatus in a wireless power transmission system comprises: a feeding coil, which is wound a plurality of times around a center, generates a time-varying magnetic field according to an operating frequency of a supply power, and wirelessly transmits electrical energy through magnetic induction coupling to a current collecting coil exposed to the time-varying magnetic field; and a feeding auxiliary coil, which is wound a plurality of times together with the feeding coil around the same center as the feeding coil, and generates a magnetic field of a phase affecting the feeding coil to provide additional inductance.
Inventors:
AHN SEUNGYOUNG (KR)
KIM JEDOK (KR)
AHN JANGYONG (KR)
KIM JEDOK (KR)
AHN JANGYONG (KR)
Application Number:
PCT/KR2022/005816
Publication Date:
October 27, 2022
Filing Date:
April 22, 2022
Export Citation:
Assignee:
KOREA ADVANCED INST SCI & TECH (KR)
International Classes:
H02J50/00; H01F27/28; H01F27/32; H01F27/34; H01F27/36; H01F27/38; H01F38/14; H02J50/10; H02J50/12; H02J50/70
Foreign References:
| KR20180132205A | 2018-12-12 | |||
| JP6399351B2 | 2018-10-03 | |||
| KR102004445B1 | 2019-07-26 | |||
| JP6414650B2 | 2018-10-31 | |||
| US20190074719A1 | 2019-03-07 |
Attorney, Agent or Firm:
FIRSTLAW P.C. (KR)
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