Patent ID: 9502922
Filing Date: 2016-11-22
CPC Classification: H01M,H02J,H04B,Y02E

Claim Text:
1. A charging apparatus that transmits electrical power to a charging target device by electromagnetic induction to charge a secondary battery of the charging target device, the charging apparatus comprising: a power transmission coil; a position detection section that detects a position of a power reception coil of the charging target device placed on the charging apparatus; and a resonant circuit that prevents attenuation of radio waves or a magnetic field generated around the charging apparatus, and wherein: the position detection section comprises coils disposed separately from the power transmission coil in a plurality of rows; the resonant circuit attenuates radio waves or a magnetic field of a predetermined frequency in which the charging target device performs communications with external devices other than the charging apparatus; and the resonant circuit is provided to the coils of the position detection section.