独立式感烟探测器低功耗设计

Low-power Design of Independent Smoke Detector

本文针对独立式感烟探测器对功耗的严格要求,合理进行系统设计,选取适合低功耗工作的MSP430系列单片机,对其工作模式进行优化,使单片机大部分时间工作在极低功耗的模式下,有效地降低了单片机工作电流,同时对发光电路、运放电路等电路进行优化,通过一系列措施,使独立式感烟探测器的工作电流降到一个合理水平,满足相关标准的要求。

Based on the fact that the independent smoke detector has strict requirements for power consumption, a new independent smoke detector is designed. The MSP430 series SCM is selected to meet the requirements of low-power consumption. In order to make SCM work in a very low-power consumption mode during most of the time and effectively reduce the working current of SCM, the operating mode of SCM is optimized. Besides, light-emitting circuit, transmittal circuit and other circuits are also optimized to reduce the working current of independent smoke detector to a reasonable level, and meet the requirements of relevant standards.