Invention Grant
- Patent Title: Multi-coil based wireless power transmission device and method
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Application No.: US16627200Application Date: 2018-06-28
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Publication No.: US11271436B2Publication Date: 2022-03-08
- Inventor: Sungkyu Kim , Jeongkyo Seo , Jinmoo Park , Seonghun Lee , Bongsik Kwak , Jaesung Lee , Jihyun Lee , Gyunghwan Yook , Joonho Park , Youngchan Cho
- Applicant: LG Electronics Inc.
- Applicant Address: KR Seoul
- Assignee: LG Electronics Inc.
- Current Assignee: LG Electronics Inc.
- Current Assignee Address: KR Seoul
- Agency: Fish & Richardson P.C.
- International Application: PCT/KR2018/007357 WO 20180628
- International Announcement: WO2019/004753 WO 20190103
- Main IPC: H02J50/80
- IPC: H02J50/80 ; H02J50/12 ; H01F38/14 ; H02J50/40 ; H02J50/60 ; H02J7/02 ; H04B5/00 ; H02J50/90 ; H04L27/02

Abstract:
A multi-coil based wireless power transmission device is disclosed that includes a primary coil array forming a magnetic coupling with a secondary coil provided in a wireless power reception device to transmit wireless power to the wireless power reception device; a plurality of inverters connected to a plurality of primary coils one-to-one to selectively drive each of the plurality of primary coils; a communication and control unit controlling the plurality of inverters and communication with the wireless power reception device such that at least one primary coil is driven based on the degree of magnetic coupling formed by each primary coil and the secondary coil, thereby determining output, which can be provided by the primary coil array, within a value obtained by summing all the maximum outputs individually set to the respective primary coils.
Public/Granted literature
- US20200244108A1 MULTI-COIL BASED WIRELESS POWER TRANSMISSION DEVICE AND METHOD Public/Granted day:2020-07-30
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