一种电池保护芯片、电池组件及电子烟

By utilizing the secondary over-inhalation protection function of the battery protection chip, the load voltage is detected and the timing control switch unit is disconnected, which solves the problem of high-temperature damage caused by over-inhalation of the airflow sensor in electronic cigarettes, and improves the safety and reliability of electronic cigarettes.

CN114794587BActive Publication Date: 2026-07-17XI AN WENXIAN SEMICON TECH CO LTD
View PDF 2 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
XI AN WENXIAN SEMICON TECH CO LTD
Filing Date
2022-03-31
Publication Date
2026-07-17

Smart Images

  • Figure CN114794587B_ABST
    Figure CN114794587B_ABST
Patent Text Reader

Abstract

本申请实施例提供一种应用于电子烟的电池保护芯片，包括电源供电引脚、第二接地引脚、第二开关控制引脚、过放电压保护单元、放电过流保护单元；电池保护芯片还包括二级过吸保护单元和负载检测单元，二级过吸保护单元分别与负载检测单元和逻辑控制单元电连接，负载检测单元用于获得第一检测电压，第一检测电压用于与第二开关单元的压降呈线性关系，当所述二级过吸保护单元判断所述第一检测电压大于预设的第一参考电压时，所述逻辑控制单元开始计时，当所述逻辑控制单元计时时长大于或等于第二预设时长时，所述逻辑控制单元通过所述第二开关控制引脚用于控制所述第二开关单元保持断开。本申请实施例还提供一种电池组件及电子烟。
Need to check novelty before this filing date? Find Prior Art