SWITCH CONTROL DEVICE AND BATTERY PACK INCLUDING THE SAME

    公开(公告)号:EP4422023A1

    公开(公告)日:2024-08-28

    申请号:EP23206209.1

    申请日:2023-10-26

    发明人: CHO, Kyusung

    摘要: A switch control device according to the present disclosure may include a controller configured to output a control signal to control an opening/closing of a switch; a low voltage protective circuit configured to generate an off signal indicating the opening state of the switch when a voltage of the battery module is lower than a predetermined value in a state that the control signal indicates a closing state of the switch, and to maintain the output of the off signal until the control signal indicates the opening state of the switch; and a switch driver that controls the opening/closing of the switch according to the control signal and the off signal and controls the switch in an opening state regardless of the control signal when the off signal is received from the low voltage protective circuit.

    SWITCH DRIVING CIRCUIT, BATTERY MANAGEMENT SYSTEM, BATTERY PACK, AND ELECTRICAL DEVICE

    公开(公告)号:EP4398445A1

    公开(公告)日:2024-07-10

    申请号:EP23220250.7

    申请日:2023-12-27

    IPC分类号: H02J7/00 H03K17/18

    摘要: This application discloses a switch driving circuit, a battery management system, a battery pack, and an electrical device. The switch driving circuit includes: a charging switch (11) and a discharging switch (12) that are connected in series between a discharging terminal (P+/P-) and a cell module (B+/B-). A driving voltage generation module (20), the charging switch (11), and the discharging switch (12) are electrically connected to a first node (N1). The first node (N1) is electrically connected to an isolation ground end (GND1). The driving voltage generation module (20) is configured to boost an input voltage of the driving voltage generation module and output a driving voltage (Vdri). An isolation switch (30) is electrically connected to an output end of the driving voltage generation module (20) and a control end of the charging switch (11) and/or a control end of the discharging switch (12). The isolation switch (30) is configured to perform conduction in response to a control signal, and output the driving voltage (Vdri) to the control end of the charging switch (11) and/or the control end of the discharging switch (12).

    MULTIPORT BATTERY
    9.
    发明公开
    MULTIPORT BATTERY 审中-实审

    公开(公告)号:EP4369560A3

    公开(公告)日:2024-06-12

    申请号:EP23209263.5

    申请日:2023-11-10

    IPC分类号: H02J7/00

    摘要: A battery (718) includes at least one battery cell (790), a bidirectional port (781) configured to provide current output to a load from the at least one battery cell (790) and to receive a charge current from a battery charger (490) to charge the at least one battery cell (790), a charge only port (788) configured to receive charge current from the battery charger (490) to charge the at least one battery cell (790), and a battery control system (780). The battery control system (780) is configured to detect a connection status of the bidirectional port (781) and/or the charge only port (788) and, based on the connection status of each port, to control the battery (718) between a power delivery mode where current can flow from the at least one battery cell (790) out of the bidirectional port (781), a charge mode where current can flow from the bidirectional port (781) or the charge only port (788) to the at least one battery cell (790), and a disconnected mode where current cannot flow between the bidirectional port (781) or the charge only port (788) and the at least one battery cell (790).