自动亮度控制台灯毕业论文.docVIP

交通职业学院 毕 业 论 文（设 计） 论文（设计）题目： 自动亮度控制台灯 所属系别 信息工程系 专业班级 电子信息工程技术一班 姓　　名 学　　号 指导教师 撰写日期 2010 年 5 月 摘要　Abstract This course is designed for reading and writing at night, some light control desk lamp, Xi writing in the region around the illumination from the power supply voltage, ambient light changes, so that the light around the lamp to keep fit in the context of the human eye, brightness control feature with self. Can be realized with the lamp light lamp light changes around the automatic regulation of its own to control the amount of light. When the environmental illumination is weak, it is great brightness; environmental illumination intensity, it brightness on the dark, to play the role of energy efficiency and protect the eyes.  It involves a kind of automatic adjustment of light intensity of the lighting fixtures. It includes a table lamp with photosensitive sensor, lamp described by the power plug, switches, light bulbs and spotlights cover composition, using 220-volt AC power supply. In the above described lamp base to set a photosensitive sensor, there are photosensitive resistor, it can change with the desktop, adjust the brightness of the changes within the current, and to adjust the lamp brightness changes, so that the desktop always maintain appropriate brightness. When the lamp brightness of the surrounding environment over a certain limit, the lamp will automatically shut down; when the ambient light below a certain threshold, it will automatically open. The model is mainly used for lighting, adjust brightness, protect eyesight. Keywords: automatic control, lighting circuits, differential amplifier, power amplifier circuit  目 录 1引言 1 2自动光控台灯亮度控制电路功能 1 3设计与论证 1 3.1单向可控硅的定义 1 3.2性能 2 3．3光控开关 2 3．4工作原理 3 4自动光控台灯控制电路的综合设计 4 4．1自动光控台灯控制电路的实体设计 4 4．2原件清单 4 4．3自动台灯亮度控制电路 5 4．4工作原理： 6 4．5元件选择与安装调试： 6 5.设计的扩展性 7 参考文献 8 致 谢 9 附录1：附录一题目 10 1引言