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:
Mar. 08, 2016
Filed:
Aug. 07, 2012
Keiichi Ichikawa, Nagaokakyo, JP;
Henri Bondar, Kyoto, JP;
Keiichi Ichikawa, Nagaokakyo, JP;
Henri Bondar, Kyoto, JP;
MURATA MANUFACTURING CO., LTD., Nagaokakyo-Shi, Kyoto-Fu, JP;
Abstract
A power transfer system includes a power transmission device and a power reception device which are capacitively coupled to allow electrical conduction therethrough in the manner of alternating current. The power transmission device includes an active electrode, a passive electrode, a step-up transformer, and a high-frequency voltage generating circuit. The power reception device includes an active electrode, a passive electrode, and a load circuit. A divider for voltage division based on load capacitances (Cand C) is provided between the active electrode and the passive electrode. The active electrode and the passive electrode have respective equivalent capacitances to ground (Ca and Cp) relative to the ground potential. A ground leakage current Ig is minimized by adjusting the values of the respective capacitances in an equivalent circuit so as to satisfy the relationship: C/C=Cp/Ca.