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. 09, 2021
Filed:
Mar. 28, 2019
Panasonic Intellectual Property Management Co., Ltd., Osaka, JP;
Hiroshi Kanno, Osaka, JP;
Abstract
An electrode unit is used in a power transmitting device or a power receiving device in a wireless power transmission system of an electric field coupling method. The electrode unit includes a first electrode and a second electrode, which are a power transmitting electrode pair or a power receiving electrode pair, and a matching circuit to be connected between a power conversion circuit and the first and second electrodes in the power transmitting device or the power receiving device. The matching circuit includes a first inductor connected to the first electrode, a second inductor connected to the second electrode, and a first capacitor. The first capacitor is connected between a wire between the first electrode and the first inductor and a wire between the second electrode and the second inductor. The first inductor and the second inductor are magnetically coupled together with a negative coupling coefficient.