一种二级过吸保护电路及电子烟
By using load detection and logic control in a two-stage over-inhalation protection circuit, the problem of over-inhalation protection mechanism failure in the airflow sensor of electronic cigarettes is solved, preventing overheating damage to the switching unit and improving the safety and reliability of electronic cigarettes.
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
AI Technical Summary
In existing electronic cigarettes, the over-inhalation protection mechanism of the airflow sensor is prone to failure, causing the first switching unit to work for a long time, resulting in excessive temperature rise, damage to the device and potential safety issues, especially under high current discharge conditions.
A two-stage over-suction protection circuit is adopted. Through the load detection unit and the over-suction logic unit, the current and voltage are judged and the first switching unit is kept stopped within a preset time to prevent overheating.
It effectively prevents the first switching unit and its surrounding circuits from being damaged by high temperature, reduces the failure rate and safety hazards of electronic cigarettes, has good compatibility and low cost, and does not require major modifications to the original circuit.
Smart Images
Figure CN114617310B_ABST
Abstract
Citation Information
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