发明名称
摘要 A battery protection device includes: switch elements (1, 2) which perform switching between connection and disconnection of a charge/discharge channel (9) between I/O terminals (5, 6) for discharging to an electronic device (300) using a secondary battery (200) as a power source and charging of the secondary battery (200) by a charger (400) and the two terminals (3, 4) of the secondary battery (200); and a protection IC (90) which controls switching operation of the switch elements (1, 2) as follows.  Upon detection of lowering of the inter-terminal voltage between the I/O terminals (5, 6) when the charge inhibit condition of the secondary battery (200) is satisfied to cut-off the charge/discharge channel, the switch element (1) temporarily makes the charge/discharge channel in the conductive state for a predetermined time and after the predetermined time has elapsed, the switch element (1) returns the charge/discharge channel to the cut-off state.
申请公布号 JP5110168(B2) 申请公布日期 2012.12.26
申请号 JP20100530783 申请日期 2009.08.20
申请人 发明人
分类号 H02J7/00;H01M2/10;H01M2/34;H01M10/44;H02H7/18;H02J7/34 主分类号 H02J7/00
代理机构 代理人
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