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, 2013
Filed:
Nov. 26, 2010
Kyozo Terao, Sumoto, JP;
Shoichi Toya, Minamiawaji, JP;
Kyozo Terao, Sumoto, JP;
Shoichi Toya, Minamiawaji, JP;
Sanyo Electric Co., Ltd., Osaka, JP;
Abstract
A charging pad is provided with a power supply coil, and a device housing a battery containing an induction coil. The device housing a battery is provided with a rectifying circuit that rectifies AC power induced in the induction coil, a charging circuit that charges the internal battery with output from the rectifying circuit, a shorting circuit that short circuits the terminals of the induction coil, and a control circuit that controls the shorting circuit ON when a charging abnormality is detected. If the control circuit detects a charging abnormality during power transmission from the charging pad power supply coil to the device housing a battery induction coil, it controls the shorting circuit ON to cut-off the supply of power from the induction coil to the rectifying circuit.