- Patent Title: Wireless charging pad including plurality of small power transmission coils and device for and method of driving wireless charging pad in wireless power transmission system
-
Application No.: US15902543Application Date: 2018-02-22
-
Publication No.: US10693319B2Publication Date: 2020-06-23
- Inventor: Een Kee Hong , Joon Hwan Kim , Bom Son Lee , Gun Young Kim
- Applicant: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
- Applicant Address: KR Yongin-si
- Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
- Current Assignee: UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY
- Current Assignee Address: KR Yongin-si
- Agency: Sughrue Mion, PLLC
- Priority: com.zzzhc.datahub.patent.etl.us.BibliographicData$PriorityClaim@7ffde052
- Main IPC: H02J50/10
- IPC: H02J50/10 ; H02J50/90 ; H02J7/02 ; H02J50/40 ; H04B5/00
Abstract:
Disclosed are a wireless charging pad including a plurality of small power transmission coils and a device for and a method of driving the wireless charging pad. More particularly, the wireless charging apparatus includes a driving controller configured to generate a first control signal so as to apply a first driving voltage having a first phase to power transmission coils to be driven matching a device to be charged among the small power transmission coils and generate a second control signal so as to apply a second driving voltage having a phase opposite to the first phase to power transmission coils surrounding the power transmission coils to be driven; and a coil driver configured to apply the first and second driving signals to a wireless charging pad.
Public/Granted literature
Information query
