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    Battery protection circuit module and battery pack comprising same
    7.
    发明授权
    Battery protection circuit module and battery pack comprising same 有权

    公开(公告)号：US10756550B2

    公开(公告)日：2020-08-25

    申请号：US15749635

    申请日：2016-08-11

    申请人： ITM SEMICONDUCTOR CO., LTD.

    发明人： Hyuk Hwi Na ,  Ho Seok Hwang ,  Young Seok Kim ,  Sang Hoon Ahn

    IPC分类号： H02J7/00 ,  H02H7/18 ,  H01M10/44 ,  H01M10/42

    摘要： According to an aspect of the present invention, there is provided a battery protection circuit module including a first positive terminal and a first negative terminal electrically connected to electrode terminals of a battery bare cell, a second positive terminal and a second negative terminal electrically connected to a charger or an electronic device, a single field-effect transistor including a drain terminal, a source terminal, a gate terminal, and a well terminal, wherein the drain terminal is electrically connected to the first negative terminal and the source terminal is electrically connected to the second negative terminal, and a protection integrated circuit (P-IC) for controlling charging/discharging of the battery bare cell by controlling the gate terminal to control whether to switch on the single field-effect transistor and controlling a bias voltage of the well terminal by using an internal switch.

    Protection IC and semiconductor integrated circuit
    9.
    发明授权
    Protection IC and semiconductor integrated circuit 有权

    公开(公告)号：US10283981B2

    公开(公告)日：2019-05-07

    申请号：US15640699

    申请日：2017-07-03

    申请人： MITSUMI ELECTRIC CO., LTD. ,  ITM Semiconductor Co., Ltd.

    发明人： Shuhei Abe ,  Hyuk Hwi Na ,  Ho Seok Hwang ,  Young Seok Kim ,  Sang Hoon Ahn

    IPC分类号： H02J7/00 ,  H01L23/535 ,  H01L27/088 ,  H03K17/16 ,  H03K17/06 ,  H01L27/02

    摘要： A protection IC includes a bias output terminal connected to a back gate of a MOS transistor, a load side terminal connected to a power supply path between a load and the MOS transistor, a load side switch inserted in an electric current path connecting the bias output terminal and the load side terminal, and a control circuit configured to control the load side switch based on a state of a secondary battery and thereby cause a back gate control signal for controlling a voltage of the back gate to be output from the bias output terminal. The load side switch is formed on an N-type silicon substrate and includes at least two NMOS transistors whose drains are connected to each other, and the control circuit is configured to simultaneously turn on or turn off the two NMOS transistors based on the state of the secondary battery.

    Secondary battery protection circuit
    10.
    发明授权
    Secondary battery protection circuit 有权

    公开(公告)号：US10090690B2

    公开(公告)日：2018-10-02

    申请号：US15640713

    申请日：2017-07-03

    申请人： MITSUMI ELECTRIC CO., LTD. ,  ITM Semiconductor Co., Ltd.

    发明人： Shuhei Abe ,  Hyuk Hwi Na ,  Ho Seok Hwang ,  Young Seok Kim ,  Sang Hoon Ahn

    IPC分类号： H02J7/00

    摘要： A secondary battery protection circuit includes a first terminal connected to a power supply path between a secondary battery and a MOS transistor, a second terminal connected to the power supply path between a load and the MOS transistor, a third terminal connected to a gate of the MOS transistor, a fourth terminal connected to a back gate of the MOS transistor, a control circuit that outputs a switch control signal based on a detected abnormal state of the secondary battery, and a switch control circuit including a first switch for connecting the fourth terminal with the first terminal and a second switch for connecting the fourth terminal with the second terminal. At least one of the resistance between the fourth terminal and the first terminal and the resistance between the fourth terminal and the second terminal is greater than the on resistance value of the MOS transistor.