最简单的台灯就是接到离线信号后点亮一组不带调光功能的白色LED。
In the simplest fashion it takes an offline signal and drives a set of white LEDs with no dimming.
微控制器还需要输入信号来修改输出调光波形，而这就会增加通信网络的复杂度。
The microcontroller will also require an input signal to modify the output dim waveform, which can introduce the complexity of a communication network.
介绍了一个视频信号幅值提取电路的设计方案，并应用于摄像机自动调光系统。
The design method of video signal's magnitude extraction circuit is expounded, and this design method is applied in the automatic dimmer system.
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