声光控延时开关毕业设计

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1、 毕业设计(论文） 第 I 页 声光控路灯延时开关 摘要： 声光双控延时开光不仅适用于住宅区的楼道，而且也适用于工厂、办 公室、教学楼等公共场所，它具有体积小，外形美观，制作容易，工作可靠等优点， 而且降低能耗，节约能源，注重环保是当今世界的主潮流。此外，它在一定的场所使 用还可起防盗作用。 它是公共场所照明开关的理想选择， 被人们誉为 “长明灯的克星” 。 本次设计的是一个灵敏度较高的声光控制开关，行人只要拍个巴掌就能电路触 发。本电路仅使用一只 CMOS 门电路 TC4081BP、一个 CRZ2-113F 型小型驻极体式电容 话筒、一个 CdS 型光敏电阻器以及若干电阻、电容配合就能将电路

2、触发，使其导通， 将电灯打开。它不需要发送关闭信号，由电路自身的延时电路将灯关闭。当灯被打开 后，延时电路延时约 25s 后将灯自动关闭。该电路还具有自动光控作用，在白天由光 敏电阻器控制着电路。即使受到声音信号的触发，开关也不会打开。 关键词：声光控 与非门 RC 延时 Proteus 仿真 毕业设计(论文） 第 II 页 Abstract Acousto-optic dual control delay dedication applies not only to residential building, but also apply to factory, office buildin

3、gs, and other public places, it has small, beautiful appearance, easy to work, reliability, and reduce energy consumption, energy saving, pay attention to environmental protection is the main trend in todays world. In addition, it must use the site can also up security role. It is public lighting sw

4、itch ideal choice and was praised as “ever-burning lamps of conquerors. This design is a sensitivity high light control switch, pedestrians only take a slap can trigger circuit. This circuit using only a CMOS gate TC4081BP, a small CRZ2-113F type in a microphone, a posture capacitor and resistor of

5、photosensitive CdS with resistor, capacitor can trigger circuit, the electric conduction, will open. It does not need to send a signal by itself, close the circuit will delay circuit switched off. When the lights were opened, delay circuit will delay 25s about light automatically shut off. This circ

6、uit has automatic optical effect in the daytime, control circuit of photosensitive resistors. Even the voice signal is triggered, switch also wont open. Keywords: sound light double control NAND gate RC delay electricity Proteus emulate 毕业设计(论文） 第 III 页 目 录 第 1 章 绪论 1 第 2 章 单元电路设计 2 2.1 设计方框图. 2 2.2 声光处理电路设计. 2 2.2.1 声音放大电路 2 2.2.2 声控电路设计 4 2.2.3 光控制电路 5 2.3 灯光控制电路设计. 6 2.3.1 器件选择 6 2.3.2 延时电路设计 7 2.4 电源电路设计. 9 2.4.1 整流电路. 9 2.4.2 滤波电路. 10 2.4.3 电源电路工作原理 12 2.5 整机电路. 13 第