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:
Dec. 27, 2016
Filed:
Jun. 02, 2014
Daihen Corporation, Osaka-shi, Osaka, JP;
Yoshinori Tsuruda, Osaka, JP;
DAIHEN Corporation, Osaka, JP;
Abstract
A wireless power transmission system includes a transmitting antenna, a power supply for supplying power of a resonance frequency fto the transmitting antenna, a first capacitor connected in series to the transmitting antenna, a receiving antenna magnetically coupled to the transmitting antenna, a load connected to the receiving antenna, and a second capacitor connected in series to the receiving antenna. Supposing that the coupling factor between the transmitting antenna and the receiving antenna is represented by k, the internal resistance of the power supply by Rs and the resistance of the load by R, then the self-inductance Lof the transmitting antenna and the self-inductance Lof the receiving antenna are determined to satisfy an equation: L×L=R×R/(2πfk). Further, the capacitance Cof the first capacitor and the capacitance Cof the second capacitor are determined to satisfy equations: C=1/(2πf)Land C=1/(2πf)L.