公开(公告)号：US20130026994A1

公开(公告)日：2013-01-31

申请号：US13421822

申请日：2012-03-15

申请人： Masaaki MORIKAWA

发明人： Masaaki MORIKAWA

IPC分类号： H02J7/00

CPC分类号： H01M10/482 ,  B60L58/22 ,  G01R19/16542 ,  G01R31/024 ,  G01R31/3835 ,  G01R31/396 ,  H01M10/425 ,  H01M10/46 ,  H01M2010/4271 ,  H01M2220/20 ,  H02J7/0021 ,  Y02T10/7005 ,  Y02T10/7055 ,  Y02T10/7061

摘要： According to one embodiment, a battery cell monitoring circuit detects an abnormity in the cell balancing and terminals of each battery cell. One end of the first switch is connected to the first cell balancing terminal, and the other end of the first switch is connected to the second cell balancing terminal, so that the first switch is turned on/off based on a first control signal to perform cell balancing. The current source and the second switch are arranged in parallel with the first switch, and are connected in series between the one end and the other end of the first switch. The current source supplies a current. The second switch is turned on/off based on a second control signal. The first detection unit receives a first cell voltage measuring terminal voltage and a first cell balancing terminal voltage, and detects a terminal open state. The second detection unit receives a second cell voltage measuring terminal voltage and a second cell balancing terminal voltage, and detects a terminal open state.

摘要翻译： 根据一个实施例，电池单元监控电路检测电池平衡的异常和每个电池单元的端子。 第一开关的一端连接到第一单元平衡端子，第一开关的另一端连接到第二单元平衡端子，使得第一开关基于第一控制信号而导通/截止以执行 电池平衡。 电流源和第二开关与第一开关并联布置，并串联连接在第一开关的一端与另一端之间。 电流源提供电流。 第二开关基于第二控制信号而导通/截止。 第一检测单元接收第一单元电压测量端电压和第一单元平衡端电压，并检测端子打开状态。 第二检测单元接收第二单元电压测量端电压和第二单元平衡端电压，并检测端子打开状态。