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:
Nov. 30, 2021
Filed:
May. 24, 2017
Lg Innotek Co., Ltd., Seoul, KR;
Su Ho Bae, Seoul, KR;
LG INNOTEK CO., LTD., Seoul, KR;
Abstract
An electromagnetic resonance-type wireless power transmitter according to one embodiment of the present invention may comprise: a power conversion unit including a converter capable of converting a voltage received from a power supply unit into a particular voltage; a power transmission unit including a wireless power transmission coil for receiving the particular voltage from the power conversion unit and wirelessly transmitting power, using a particular resonance frequency; a communication unit capable of performing data communication with a wireless power receiver; and a control unit for controlling the power conversion unit, the power transmission unit, and the communication unit, wherein the wireless power transmission coil may comprise an outer coil part having a first loop shape, and an inner coil part disposed within the first loop shape and having a second loop shape, the direction of a current flowing through the outer coil part may be opposite to that of a current flowing through the inner coil part adjacent to the outer coil part, and the direction of a magnetic field generated by the outer coil part may be identical to that of a magnetic field generated by the inner coil part in a first area between the outer coil part and the inner coil part adjacent to the outer coil part.