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:
Apr. 18, 2023
Filed:
Aug. 21, 2019
Lg Innotek Co., Ltd., Seoul, KR;
Su Ho Bae, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
The present invention relates to a wireless power transmission method and apparatus therefor. A wireless power transmitter according to an embodiment may comprise: a plurality of transmission coils; an alternating current power generator for generating a plurality of alternating current power signals applied to the plurality of transmission coils; a power source for supplying direct current power to the alternating current power generator; and a controller for controlling the phases of the plurality of alternating current power signals, wherein the controller changes the phase of at least one of the plurality of alternating current power signals to control transmission power output through the plurality of transmission coils. Therefore, the present invention provides an advantage in that a wireless power transmitter including a plurality of transmission coils can more precisely control wireless power.