家用电风扇课程设计 终极版

湖南文理学院课程设计报告课程名称：电子技术课程设计院系：电气与信息工程学院专业班级：通信09103班学生姓名：王旭指导教师：杨峰完成时间：报告成绩：评阅意见：评阅教师日期家用风扇控制器绪论........................................................................................................................... - 6 -第一章设计内容及要求 ..................................................................................... - 7 -1.1设计内容.................................................................................................... - 7 -1.2 设计要求................................................................................................... - 7 -1.3 主要参考器件........................................................................................... - 7 -第二章系统组成及工作原理................................................................................. - 8 -2.1 系统组成................................................................................................... - 8 -2.2 系统工作原理........................................................................................... - 8 -第三章总体电路设计............................................................................................. - 9 -3.1 系统设计................................................................................................... - 9 -3.2 方案的修改............................................................................................. - 10 -3.3 电路工作原理......................................................................................... - 10 -3.4 单元电路设计......................................................................................... - 11 -第四章仿真性能测试........................................................................................... - 17 -4.1 风种、风速的选择电路......................................................................... - 17 -4.2 脉冲触发电路......................................................................................... - 17 -第五章家用电风扇系统调式............................................................................... - 19 -5.1调试仪器.................................................................................................. - 19 -5.2调试过程.................................................................................................. - 19 -5.3 结果分析................................................................................................. - 19 -第六章结论. (15)致谢 (16)参考文献 (17)附录一元器件清单............................................................................................... - 23 -附录二总设计电路图......................................................................................... - 24 -随着经济的发展，电风扇已是必不可少的家用电器。

它经济、简便、实用，是每个人家里可以负担起的电器。

并且随着科技的发展，电风扇的功能越来越完善，人们也更加注重电风扇的智能化、人性化。

许多厂家在制做风扇是运用了集成芯片构成数字电路或者单片机技术，使电风扇的电路更加简单。

本次实验运用了数字电路的知识，实现了家用电风扇控制逻辑电路设计。

设计内容是一个按钮来实现风速强、中、弱的转换并且实现循环；一个按钮来实现风种正常风、睡眠风、自然风的转换并且实现循环；不同颜色LED灯的显示来表示风速与风种的状态。

家用电风扇控制逻辑电路分为三大模块：第一个模块是风速、风种的循环控制电路，利用74ls175、74ls08芯片实现三种状态的循环计数，并且利用高低电平实现LED灯的亮灭；第二个模块是风种实现电路，利用555发生器产生周期为8s的方波，并且利用74ls175构成二分频电路形成周期为16s的方波，再利用74ls151芯片选择风种的输出。

第三个模块是按钮控制电路，利用按钮来给芯片脉冲，实现风速、风种的选择，并且可以实现关机的功能。

本课题基本实现了三个模块的功能，将之有效的连接在一起，实现了家用电风扇控制逻辑电路的总体功能。

虽然此次设计的电路较为简单，但它的成本较低，并且经济、实用而且风种、风种的选择体现了它的人性化，相信在市场有一定的潜力。

关键字：电风扇循环控制74ls175 LEDAbstractWith economic development, electric fans is essential appliances.It is economical, simple,practical,everyone can afford home appliances.And with the development of technology, fans of the functions become more perfect, and people pay more attention to fans of intelligent,user-friendly.Many manufacturers are making use of the integrated fan constitute a digital circuit or microcontroller chip technology,so fans of the circuit easier.The experimental use of digital circuit knowledge to achieve a home electric fan control logic circuit design.Design content is a button to achieve a strong wind,in the weak conversion and implementation cycle;a button to achieve the kind of wind normal wind, sleep wind,natural wind conversion and implementation cycle;LED light display different colors to indicate wind speed and wind species status.Household electric fan control logic circuit is divided into three modules:first module is the wind speed,the wind kind of loop control circuit,use74ls175, 74ls08chip three-state cycle count,and the use of high and low lights of LED lights off;the second module is the wind kind of circuit implementation, the use of555-cycle generator for the8s of the square wave, and the use of74ls175constitute divide the circuit form a square wave cycle of 16s, and then the wind kind of use74ls151chip select output.The third module is the button control circuit,use the pulse button to the chip to achieve the speed,the wind kind of choice,and can shut down function.The issue basically a function of three modules,the connection will be effective together,to achieve the home fans the overall function of the control logic circuit.Although the design of the circuit is relatively simple,but it's lower cost,and economic,practical and kind of wind,the wind kind of choice reflects its humanity,I believe there is some potential in the market绪论家用电器已经变得极为普遍，成了人们生活中不可或缺的生活用品。