我是西南油气田成都公管中心的一名维修电工,负责照明设备的维修。有用户反映,一些声控灯亮的时间过长,超过1min,人都进屋了灯还会亮很久,造成浪费。针对这一问题,我对声控开关的内部结构和原理进行了了解。通过查阅相关资料,我发现,虽然各种声控开关的电路结构有所不同,但工作原理是一样的,都是以电容充放电时间的长短作 I am a maintenance electrician in the Chengdu Public Management Center of Southwest Oil and Gas Field, responsible for the maintenance of lighting equipment. Some users reflect that some of the voice-activated lights are too bright for more than 1min. People are entering the room and the lights will stay on for a long time, resulting in waste. In response to this issue, I understand the internal structure and principle of the voice switch. Through the access to relevant information, I found that although the various voice-activated switch circuit structure is different, but the working principle is the same, are based on the length of the capacitor charge and discharge time