中图分类号：LED智能台灯的设计焦作大学机电工程学院2012年12月毕业设计专业名称：应用电子技术学生姓名：王子龙导师姓名：王春霞职称：讲师中图分类号：密级：UDC：单位代码：11522LED智能台灯的设计LEDthedesignofintelligentlamp焦作大学机电工程学院姓名王子龙学制3年专业应用电子技术研究方向电子技术导师王春霞职称讲师论文提交日期2012.12.27论文答辩日期2013.1.4摘要我这个设计针对台灯的节电性和使用的方便性两个方面进行创新设计与研究，以单片机为核心，综合运用热释电红外、光检测等技术，设计制作出智能型多种功能的实用型LED台灯。该台灯具有自动开、关，多级调光等功能，实现对台灯用电情况和亮度调节的智能控制。而对光源的选取，我们选用了5mm的草帽型LED作为光源。LED发光器件是冷光源，光效高，工作电压低，而且能耗低，控制性能简单好用、无辐射。LED寿命可达10万小时，是荧光灯的10倍，白炽灯的100倍。随着能源紧缺、电价越来越高、环保要求及LED的光效的提高，用LED替代现在台灯普遍使用的白炽灯或荧光灯，环保无污染。关键词：智能台灯；LED驱动；红外感应AbstractIthisdesignaccordingtothedesklampofpowersavingsexandeaseofusetwoaspectsofinnovativedesignandresearch,basedonthesinglechipcomputerasthecore,theintegrateduseofpyroelectricinfrared,lightdetectiontechnology,designavarietyoffunctionsofintelligentpracticalLEDdesklamp.Thisdesklampcanautomaticallyopenandclose,multistagedimming,andotherfunctions,realizethedesklamppowerconditionandbrightnesscontrolofintelligentcontrol.Andtotheselectionoflightsource,wechoosethe5mmstrawhattypeLEDaslightsource.LEDluminousdeviceiscoldlightsource,highefficiency,lowvoltageoperation,andlowenergyconsumption,thecontrolperformanceissimpletouse,noradiation.LEDlifecanreach100000hours,itis10timesoffluorescentlamp,incandescentlamp100times.Withtheenergyshortage,electricitypriceismoreandmorehigh,environmentalprotectionrequirementsandLEDtheimprovementofefficiency,LEDlampreplacementnowcommonuseincandescentlamporfluorescentlamp,environmentalprotectionfreefromcontamination.Keywords：intelligentdesklamp;LEDdrive;PWMdimming;Infraredinduction.目录引言...........................................................................................III第一章LED智能台灯的设计思路..................................................................................................11.1LED智能台灯功能和指标................................................................................................11.2台灯的设计内容...............................................................................................................1第二章智能台灯系统电路的设计.................................................................................................32.1.总体电路图...............................................................................................................32.2系统电路的设计........................................................................................................42.3光源驱动电路.............................................................................................................4第三章单元电路的设计及仿真......................................................................................................63.189C51单片机....................................................................................................................63.1.1结构特点...............................................................................................................63.1.289C51单片机的主要特性.................
