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:
Aug. 27, 2024
Filed:
Mar. 28, 2022
Lapis Technology Co., Ltd., Yokohama, JP;
Takashi Taya, Yokohama, JP;
LAPIS Technology Co., Ltd., Yokohama, JP;
Abstract
A contactless power supply device contactless power supply device includes a power transmission module and a power reception module. The power transmission module includes a resonance circuit. The resonance circuit includes a power transmission coil generating a high-frequency magnetic field. The power reception module includes a resonance circuit. The resonance circuit includes a power reception coil generating a high frequency current by the high-frequency magnetic field. At least one of the power transmission module and the power reception module includes a relative movement detection unit that detects an amplitude change of a high-frequency voltage corresponding to the high frequency current flowing through the at least one resonance circuit of the power transmission module or the power reception module and outputs an output signal indicating a physical relative movement of the power transmission coil and the power reception coil.