公开(公告)号：US09368981B2

公开(公告)日：2016-06-14

申请号：US14328355

申请日：2014-07-10

申请人： O2Micro, Inc.

发明人： Guoxing Li ,  Yan Li ,  Weidong Xue ,  Anquan Xiao

IPC分类号： H01M10/44 ,  H01M10/46 ,  H02J7/00

CPC分类号： H02J7/0016 ,  H02J7/007

摘要： A battery module includes: a battery pack including multiple cells; control circuits corresponding to the cells, each control circuit including a control unit for managing the corresponding cell and a compensation unit for generating a corresponding compensation current such that the sum of the corresponding consumed current and the corresponding compensation current is equal to a target total current, where the control circuits include a first control circuit and a second control circuit, where the first control circuit includes a first control unit operating with a first consumed current, the second control circuit includes a second control unit operating with a second consumed current, and where the first control circuit conditionally generates a first compensation current and the second control circuit conditionally generates a second compensation current based on a comparison of the first consumed current and the second consumed current.

摘要翻译： 电池模块包括：包括多个电池的电池组; 每个控制电路包括用于管理相应单元的控制单元和用于产生相应的补偿电流的补偿单元，使得相应的消耗电流和相应的补偿电流之和等于目标总电流 ，其中所述控制电路包括第一控制电路和第二控制电路，其中所述第一控制电路包括以第一消耗电流工作的第一控制单元，所述第二控制电路包括以第二消耗电流操作的第二控制单元，以及 其中第一控制电路有条件地产生第一补偿电流，并且第二控制电路基于第一消耗电流和第二消耗电流的比较有条件地产生第二补偿电流。

公开(公告)号：US12095047B2

公开(公告)日：2024-09-17

申请号：US18237840

申请日：2023-08-24

申请人： O2Micro Inc.

发明人： Yan Li ,  Weidong Xue

IPC分类号： H01M10/42 ,  G01R19/165 ,  G01R31/3835 ,  G01R31/396 ,  H02J7/00 ,  H03K5/24

CPC分类号： H01M10/4264 ,  G01R19/16542 ,  G01R31/3835 ,  G01R31/396 ,  H02J7/0016 ,  H02J7/0019 ,  H03K5/24 ,  H01M2010/4271 ,  H01M2010/4278

摘要： An open cell detection system includes a battery management system. The battery management system includes a control unit that transmits an open cell detection signal, to enable a balance unit for a first time period and to disable it for a second time period, and to enable an under-voltage comparison unit and an over-voltage comparison unit for a third time period. The under-voltage comparison unit compares a voltage with a first open cell threshold and outputs a first comparison result in the third time period. The over-voltage comparison unit compares a voltage with a second open cell threshold and outputs a second comparison result in the third time period. A judging unit determines whether a connection between a first battery unit and the battery management system is inoperative based on the first and second comparison results.

公开(公告)号：US09698611B2

公开(公告)日：2017-07-04

申请号：US15140257

申请日：2016-04-27

申请人： O2Micro Inc.

发明人： Guoxing Li ,  Yan Li ,  Weidong Xue ,  Anquan Xiao

IPC分类号： H01M10/44 ,  H01M10/46 ,  H02J7/00

CPC分类号： H02J7/0016 ,  H02J7/007

摘要： A battery module includes: a battery pack including multiple cells; control circuits corresponding to the cells, each control circuit including a control unit for managing the corresponding cell and a compensation unit for generating a corresponding compensation current such that the sum of the corresponding consumed current and the corresponding compensation current is equal to a target total current, where the control circuits include a first control circuit and a second control circuit, where the first control circuit includes a first control unit operating with a first consumed current, the second control circuit includes a second control unit operating with a second consumed current, and where the first control circuit conditionally generates a first compensation current and the second control circuit conditionally generates a second compensation current based on a comparison of the first consumed current and the second consumed current.

公开(公告)号：US11777154B2

公开(公告)日：2023-10-03

申请号：US17940931

申请日：2022-09-08

申请人： O2Micro Inc.

发明人： Yan Li ,  Weidong Xue

IPC分类号： H01M10/42 ,  G01R19/165 ,  G01R31/3835 ,  G01R31/396 ,  H02J7/00 ,  H03K5/24

CPC分类号： H01M10/4264 ,  G01R19/16542 ,  G01R31/3835 ,  G01R31/396 ,  H02J7/0016 ,  H02J7/0019 ,  H03K5/24 ,  H01M2010/4271 ,  H01M2010/4278

摘要： An open cell detection system includes a battery management system. The battery management system includes a control unit that transmits an open cell detection signal, to enable a balance unit for a first time period and to disable it for a second time period, and to enable an under-voltage comparison unit and an over-voltage comparison unit for a third time period. The under-voltage comparison unit compares a voltage with a first open cell threshold and outputs a first comparison result in the third time period. The over-voltage comparison unit compares a voltage with a second open cell threshold and outputs a second comparison result in the third time period. A judging unit determines whether a connection between a first battery unit and the battery management system is inoperative based on the first and second comparison results.

公开(公告)号：US11469453B2

公开(公告)日：2022-10-11

申请号：US16881533

申请日：2020-05-22

申请人： O2Micro Inc.

发明人： Yan Li ,  Weidong Xue

IPC分类号： H02J7/00 ,  H01M10/42 ,  G01R19/165 ,  G01R31/3835 ,  G01R31/396 ,  H03K5/24

摘要： An open cell detection system includes a battery management system. The battery management system includes a control unit that transmits an open cell detection signal, to enable a balance unit for a first time period and to disable it for a second time period, and to enable an under-voltage comparison unit and an over-voltage comparison unit for a third time period. The under-voltage comparison unit compares a voltage with a first open cell threshold and outputs a first comparison result in the third time period. The over-voltage comparison unit compares a voltage with a second open cell threshold and outputs a second comparison result in the third time period. A judging unit determines whether a connection between a first battery unit and the battery management system is inoperative based on the first and second comparison results.