汽车车灯控制电路.doc

成绩课程设计说明书课程设计名称: 电子技术课程设计题目: 汽车车灯控制电路学生姓名: 陈杰专业: 电气工程及其自动化学号: 3120140806620 指导教师: 吴昌东日期:2016年7 月1日汽车车灯控制电路摘要:本方案设计了一个“汽车车灯控制电路”。“汽车车灯控制电路”作为电子技术基础课程得一个实践,采用74LS138译码器控制输出实现对六盏指示灯得控制,并配合74LS76JK触发器实现三进制循环计数器控制,即可轻易实现汽车正常运行与刹车得情况模拟。为实现汽车左右转弯时车灯循环闪烁得功能,:汽车;指示灯,74LS138,555定时器Abstract:Thedesignof thisprojectisa”Automobilelamp controlcircuit", as abasic courseofelectronic technologypractice、In ordertorealize thecontrol ofthesix pilot lamp, automobile lampcontrol circuituses the 74LS138decodertocontrol theoutput,andwiththe74LS76JKtriggertoachieve threedecimalcyclecounter control,so that can easilyachieve simulationofnormal operationofthecarandbrake、Inordertorealizethefunctionofcycleflashing of thelamp whenthe vehicleturnsaround,needs tocooperatewith theanotherinputS1ofthe74LS138decoder、 The timing pulsesourceisrealized by thecircuitof multivibratorcircuitposed of555timer、Keyword:Automobile,pilotlamp,74LS138,555timerﻬ目录1、前言···································································11、1设计背景····························································1 1、2设计目标····························································1 1、3设计概述····························································1 1、4设计计划····························································12、方案设计与选择·························································22、1方案比较···························································22、1、1方案一··························································22、1、2方案二··························································22、2方案论证···························································32、3方案选择···························································33、总体设计方案···························································43、1设计思路···························································43、2 电路设计原理·······················································54、单元模块设计···························································64