太阳能充电器电路设计.doc

目 录 摘 要 5 ABSTRACT 6 第一章 绪论 7 1.课题背景 7 1.2.1国内外光伏发电产业现状 8 1.2.2光伏发电市场需求分析 8 1.3光伏系统的工作原理与组成 9 1.3.1光伏系统的工作原理 9 1.3.2光伏系统的组成 9 1.4设计指标 10 1.5设计思路 10 本章小结 10 第二章 方案选择及单元电路的设计 11 2.1方案选择及方框图 11 2.1.1方案选择 11 2.1.2 方框图 11 2.2 太阳能充电器电路的原理 11 2.2.1太阳能电池组件的概述、分类 11 2.2.2单片机电路介绍 13 2.2.3锂蓄电池的充电特性 16 2.2.4控制器充放电电路 17 2.2.5液晶显示电路 18 2.2.6报警电路设计 19 2.2.7 PADS简介 20 2.3本章小结 22 第三章 锂蓄电池电压电流的检测 23 3.1锂蓄电池电压的检测 23 3.2本章小结 23 第四章 系统软件设计 23 4.1设计思路 23 4.2系统主程序流程 24 4.4 A/D转换子程序 25 4.5显示子程序 25 4.6本章小结 25 结论 25 致谢 25 参考文献 27 附录1 程序 28 摘 要 Fossil energy drying up, peoples attention to the problem of environmental protection degree are also constantly improve, look for clean alternative energy issues become more and more urgent.Solar energy as a renewable energy it has abundant, an inexhaustible, clean and safe characteristics and therefore has a broad application prospect, photovoltaic power generation technology is also more and more get the attention of people, with the price of photovoltaic modules and the decrease of the development of photovoltaic technology, solar photovoltaic power generation system will be gradually by the additional energy to make the transition to alternative energy now.Solar powers history can be dated back to 1800, Berkeleys discovery of a semiconductor material after irradiation light, to cause volt-ampere characteristics change.In the end, found the photovoltaic effect, which made from semiconductor photovoltaic cells.Thereafter, selenium, copper oxide semiconductor materials such as research, also found that the photovoltaic effect, also made a similar photovoltaic effect.This course is designed to introduce a kind of multi-purpose solar charger, using single-chip microcomputer control, the solar energy through to stabilize the dc charging circuit transformation, after completion of the battery and can automatically stop charging, can also be used as a general dc power supply, so as to get rid of the dependence on the grid for the freedom