| 2. | At the same time , the parameter monitoring circuit is designed to check the operational parameters of pharos that include voltage of power supply , operational current , based on lm339 voltage comparer , optical sensor and logical circuit 以lm339电压比较器为核心,结合光传感器、逻辑电路等,设计出参数检测电路,监测航标灯的电源电压、工作电流等工作参数。 |