发明申请
- 专利标题： CHARGER
- 专利标题（中）： 充电器
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申请号： US13606524申请日： 2012-09-07
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公开(公告)号： US20130063079A1公开(公告)日： 2013-03-14
- 发明人: Akira KAWAI , Masaki IKEDA , Masaaki SAKAUE , Toshiharu OHASHI
- 申请人： Akira KAWAI , Masaki IKEDA , Masaaki SAKAUE , Toshiharu OHASHI
- 申请人地址： JP Osaka
- 专利权人： PANASONIC CORPORATION
- 当前专利权人： PANASONIC CORPORATION
- 当前专利权人地址： JP Osaka
- 优先权： JP2011-198279 20110912
- 主分类号： H02J7/00
- IPC分类号： H02J7/00
摘要：
A charger includes an output circuit unit to output a charging current to a secondary battery, a voltage detection unit to detect a voltage of the secondary battery, and a control unit to control the output circuit unit, whereby constant current charging and constant voltage charging are performed. The control unit decreases a constant current value of the charging current by stages during the constant current charging and determines that the secondary battery has deteriorated by using a first voltage drop value of the secondary battery occurring upon first conversion and a second voltage drop value of the secondary battery occurring upon second conversion.