Method of fabricating battery protection circuit package

    公开(公告)号:US11452213B2

    公开(公告)日:2022-09-20

    申请号:US17183500

    申请日:2021-02-24

    摘要: Provided is a method of fabricating a battery protection circuit package, the method including preparing a complex package substrate obtained by connecting a flexible printed circuit board (PCB) including at least one external connection terminal for connection to an external device, to a rigid PCB for mounting components thereon, mounting the complex package substrate on a lead frame including at least one metal tab for connection to a battery cell, and encapsulating at least portions of the complex package substrate and the lead frame with a molded part while exposing the at least one metal tab and the at least one external connection terminal.

    SECONDARY BATTERY PROTECTION CIRCUIT
    3.
    发明申请

    公开(公告)号:US20180013299A1

    公开(公告)日:2018-01-11

    申请号:US15640713

    申请日:2017-07-03

    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.

    Battery protection circuit module and battery pack comprising same

    公开(公告)号:US10756550B2

    公开(公告)日:2020-08-25

    申请号:US15749635

    申请日:2016-08-11

    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.