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. 28, 2012
Filed:
Nov. 30, 2009
Ze-biao Zhang, Shenzhen, CN;
Ze-Biao Zhang, Shenzhen, CN;
Shenzhen Futaihong Precision Industry Co., Ltd., ShenZhen, Guangdong Province, CN;
Chi Mei Communication Systems, Inc., Tu-Cheng, New Taipei, TW;
Abstract
A charging device for connecting a battery to a power supply to charge the battery includes a charging unit connected between one pole of the power supply and one pole the battery, a first switch unit connecting another pole of the battery with the charging unit and including a first switch connected between another pole of the power supply and the charging unit, and a second switch unit connected between another pole of the power supply and the charging unit. The power supply charges the battery through the second switch unit when the second switch unit is switched on, the first switch is automatically switched on in the charging process, the power supply charges the battery through the first switch after the second switch unit is switched off, and the first switch is automatically switched off when the battery is fully charged.