The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2020
Filed:
Feb. 22, 2018
University-industry Cooperation Group of Kyung Hee University, Yongin-si, Gyeonggi-do, KR;
Een Kee Hong, Seongnam-si, KR;
Joon Hwan Kim, Seoul, KR;
Bom Son Lee, Yongin-si, KR;
Gun Young Kim, Andong-si, KR;
UNIVERSITY-INDUSTRY COOPERATION GROUP OF KYUNG HEE UNIVERSITY, Yongin-si, KR;
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.