发明授权
- 专利标题: Battery protection circuit and battery device
- 专利标题(中): 电池保护电路和电池装置
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申请号: US12393598申请日: 2009-02-26
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公开(公告)号: US07990669B2公开(公告)日: 2011-08-02
- 发明人: Kiyoshi Yoshikawa , Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Yoshihisa Tange
- 申请人: Kiyoshi Yoshikawa , Atsushi Sakurai , Toshiyuki Koike , Kazuaki Sano , Yoshihisa Tange
- 申请人地址: JP Chiba
- 专利权人: Seiko Instruments Inc.
- 当前专利权人: Seiko Instruments Inc.
- 当前专利权人地址: JP Chiba
- 代理机构: Brinks Hofer Gilson & Lione
- 优先权: JP2008-046374 20080227
- 主分类号: H02H3/00
- IPC分类号: H02H3/00
摘要:
Provided is a battery protection circuit and a battery device which may be manufactured at lower cost. Before all terminals of a battery protection circuit are each connected to batteries, even when a logical circuit malfunctions by an operation of a parasitic bipolar transistor formed by P-wells due to a connection order in which the batteries are connected, the logical circuit is reset by an operation of a parasitic bipolar transistor formed by the P-wells. For this reason, a charge/discharge path of the batteries is not interrupted due to the connection order. Accordingly, no limitation is placed on the connection order.
公开/授权文献
- US20090213511A1 BATTERY PROTECTION CIRCUIT AND BATTERY DEVICE 公开/授权日:2009-08-27