摘要：电子技术的发展，尤其是模电、数字技术的发展，对我们当代飞速发展的生活提供了不可替代的作用。我们的现代生活离不开科学知识。人类文明的发展最可靠的是资源，所以节约能源是是当代各国的必要任务。

    本设计主要完成声、光同时控制的电路的制作。当白天或夜晚光线较亮时，整个电路由光控部分控制，声控部分不起作用。光控电路对外界光亮程度进行检测，输出与光亮程度相对应的电压信号，从而实现白天灯泡不亮。此时即便有声音，灯泡也不亮。当光线较暗时，负载电路的通断受控于声控部分。声控电路主要将声音信号转变为电信号，且电路是否接通，取决于声音信号的强度。当声强达到一定程度时，电路自动接通，点亮灯泡。 灯泡点亮后，延时电路控制延时15秒，当延时时间到，再等待下一次声音信号触发。主要有电源电路、光控电路、声控电路、延时电路、驱动电路来完成该设计。选择声敏传感器、光敏传感器、可控硅晶闸管、双向可控硅光耦、555定时器作为基本元件。节电并可延长灯泡寿命。光敏传感器,声控传感器两种传感器承载了声控、光控两种控制的电路。利用布局和布线规则完成了电路板的制作。实现了电子开关的两种控制，实验结果实现了灯的控制。在此设计中利用到了电源稳压、整流、滤波、三极管的放大 、光敏效应、555延时等， 让我们进一步空固和掌握前面所学的基础知识，加深对了对模拟电路、数字电路的理解，对元器件的使用更加深刻。学会了对Aout CAD 99se软件的使用。其具有灵敏、低耗、性能稳定、使用寿命长、节能等特点。

关键词：声光控照明电路；光敏电阻；极性话筒;节能

Abstract：The development of electronic technology, especially the mode power, the development of digital technology provides an irreplaceable role in the life of our modern rapid development. Our modern life is inseparable from scientific knowledge. Development of human civilization is the most reliable resources, energy conservation is a necessary task of the modern countries.

　　   Designed primarily to complete the sound, the production of light at the same time control circuit. When the day or night light is bright, the whole circuit is controlled by the light control section, the voice part does not work. The light control circuit on the outside light levels detected, the output light levels corresponding to the voltage signal, in order to achieve during the day light bulb does not shine. Even with the sound, light bulbs are not bright. When the lighting is dim, the load circuit and off is controlled by the voice part. Voice circuit to sound signals into electrical signals, and the circuit is switched on, depending on the intensity of the sound signal. When the sound intensity reaches a certain level, the circuit automatically switches the light bulb. After the bulb is lit, the delay circuit control delay of 15 seconds, when the delay time to a sound signal, and then wait for the next trigger.

　　   The main power supply circuit, the light control circuit, the voice circuit, delay circuit, drive circuit to complete the design. Select the sound sensor, light sensors, SCR thyristor, triac optocouplers 555 timer as the basic components. Energy-saving lamp life. Light sensors, two sensors of the voice sensor carrying the voice, light control and the two control circuits. Placement and routing rules to complete a circuit board production. Two electronic switch control, light control experimental results. Use this design to the voltage regulator, rectifier, filter and transistor amplification, the photosensitizing effects, 555 delay, let us further by solid basic knowledge and mastery of previously learned, deepen the right analog circuits, digital circuits understand more deeply the use of components. Learned to use Aout the CAD software 99se. With high sensitivity, low consumption, stable performance, long life, energy-saving features.

Key words: Sound electric lighting circuit; Photoconductive resistance; Polarity microphone