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基于单片机的太阳能充电器的设计毕业论文设计.doc
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基于单片机的太阳能充电器的设计毕业论文设计.doc
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毕 业 设 计 [论 文]
题 目: 基于单片机的太阳能充电器的设计
学 院: 电气与信息工程
专 业: 自动化
姓 名: 杜 XX
学 号: 0924092XX
指导老师: 李老师
完成时间: 2013 年 06 月 03 日
河南城建学院本科毕业设计(论文) 摘要
摘 要
化石能源的日益枯竭、人们对环境保护问题的重视程度也在不断提高,寻找
洁净的替代能源问题变得越来越迫切。太阳能作为一种可再生能源它具有取之不
尽、用之不竭和清洁安全等特点,因此有着广阔的应用前景,光伏发电技术也越
来越受到人们的关注,随着光伏组件价格的不断降低和光伏技术的发展,太阳能
光伏发电系统将逐渐由现在的补充能源向替代能源过渡。
使用手机的人都有过这样的经历,外出或旅游时电池突然没电了,因不能及
时找到或没有 220V 市电而无法给手机充电,影响了手机的正常使用。为了解决这
一问题,本课程设计介绍一种多用太阳能手机充电器,利用单片机控制,将太阳
能经过电路变换为稳定直流电给手机充电,并能在电池充电完成后自动停止充电,
还可作为一般直流电源使用,从而摆脱对市电的依赖而获得通信的自由。与常规
的充电器相比,太阳能充电器有着明显的优势。
关键词:太阳能电池板,单片机, BUCK 变换器,光伏发电技术
河南城建学院本科毕业设计(论文) Abstract
I
Abstract
Increasing depletion of fossil energy, it's emphasis on environmental protection are
also rising, look for clean alternative energy issues become more urgent. Solar energy as
a renewable energy it has an inexhaustible and clean and safe and so on, so have a broad
application prospects, photovoltaic power generation technology is more and more
attention, with the PV module continue to lower prices and photovoltaic technology,
solar PV systems will gradually supplement the energy from the current transition to
alternative energy.
People who use mobile phones have had the experience, go out or travel no
electricity when the battery suddenly, and because they can not be found or does not
timely 220V electricity and not to charge their cell phones affect the normal use of
mobile phones. To solve this problem, the course design introduces a multi-purpose
solar charger, use MCU control, will transform solar energy through the circuit to
stabilize the direct current to charge their cell phones and can charge the battery
automatically stops charging after, but also as a general DC power use, so get rid of
dependence on electricity obtained the freedom of communication. Compared with the
conventional charger, solar charger has a clear advantage.
Key words: solar energybattery, single chip, BUCK converte,solar energy
河南城建学院本科毕业设计(论文) 目录
II
目录
摘 要 .......................................................................................................................................................I
Abstract................................................................................................................................................II
目录 .......................................................................................................................................................III
1 绪论 .......................................................................................................................................................1
1.1 本课题的研究背景及现状....................................................................................................1
1.2 课题设计思想............................................................................................................................1
1.3 论文结构 .....................................................................................................................................2
2 基于单片机的太阳能充电器系统总体方案设计..................................................................3
2.1 设计方案一 ................................................................................................................................3
2.2 设计方案二 ................................................................................................................................4
2.3 基于单片机的太阳能充电器的设计的总体设计方案 ................................................5
3 基于单片机的太阳能充电器系统的硬件设计 ......................................................................6
3.1 太阳能电池板的选用 ..............................................................................................................6
3.2 LM7805 稳压电路......................................................................................................................7
3.3 充电主电路的设计 ..................................................................................................................8
3.4 信号采集处理电路 ..................................................................................................................9
3.5 单片机选型 ................................................................................................................................9
3.6 单片机 STC89C52 介绍...........................................................................................................10
3.7 单片机电路..............................................................................................................................12
3.7.1 单片机复位电路 ............................................................................................................12
3.7.2 单片机时钟电路 ...........................................................................................................12
3.7.3 单片机 A/D 转换电路..................................................................................................13
3.7.4 按键电路...........................................................................................................................14
3.7.5 数码管显示电路 ............................................................................................................15
3.8 锂电池充电原理 .........................................................................................................................16
4 基于单片机的太阳能充电器系统的软件设计....................................................................17
4.1 设计思想...................................................................................................................................17
4.2 基于单片机的太阳能充电器系统的整体程序设计..................................................18
4.3 基于单片机的太阳能充电器系统的子程序的设计..................................................19
4.3.1 电路启动初始化 ............................................................................................................19
4.3.2 按键采集程序 .................................................................................................................20
4.3.3 数据采集及模数转换程序 .........................................................................................21
4.3.4 数码管显示子程序........................................................................................................22
4.3.5 充电子程序的设计 ......................................................................................................22
4.3.6 电源子程序的设计........................................................................................................24
河南城建学院本科毕业设计(论文) 目录
III
5 仿真与调试 ......................................................................................................................................25
5.1 充电电路仿真 .........................................................................................................................25
5.2 电流采样处理电路仿真 ......................................................................................................25
5.3 系统做直流电源使用时电路仿真图...............................................................................26
5.4 系统做充电器使用时仿真结果........................................................................................27
6 总结与展望 ......................................................................................................................................29
参考文献................................................................................................................................................30
致谢..........................................................................................................................................................31
附录 A 整体电路图............................................................................................................................32
附录 B 整体程序.................................................................................................................................33
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