摘 要：随着手机的普及，手机充电器智能化已是大势所趋，本论文以单片机和充电芯片MAX1898为核心设计一种智能充电器，不仅使得充电器更加耐用、经济、可靠，同时智能化的控制还可延长手机电池的使用寿命。本论文的重点有两方面内容:1.充电的实现；2.智能化的实现。文章在硬件设计上，完成了系统整体电路设计，详细给出了单片机电路、充电控制电路、电压转换及光耦隔离电路的设计，并对本充电器的核心器件—MAX1898充电芯片、AT89C51单片机进行了较详细的介绍；在软件设计上阐述了系统的工作流程，给出了软件程序设计。最后通过proteus仿真软件对程序进行了测试，并对实验结果进行分析，说明了本智能充电系统设计的合理性和可行性。62801

毕业论文关键字：智能充电器，MAX1898，预充，充电保护，充电报警

 Abstract：With the popularity of mobile phones, mobile phone charger intelligent is the trend of the times, the single-chip microcomputer and charging IC MAX1898 as the core design of intelligent charger, not only makes the charger is more durable, economical, reliable, intelligent control can also prolong the service life of the battery of the mobile phone.

There are two aspects in this paper: 1 charging realization; 2 intelligent realization. Article in the hardware design, completed the circuit design of the overall system, is given in detail circuit, charging control circuit, voltage conversion and photoelectric coupling isolation circuit design and the core device of the charger - MAX1898 charge chip, AT89C2051 were more detailed introduction of fine; in the software design describes the work flow of the system, and gives the software program design. At last, the program is tested by Proteus simulation software, and the experimental results are analyzed, and the rationality and feasibility of the intelligent charging system design is explained.

Keywords: intelligent charger,MAX1898,pre-charge,charge protect,charge alarm

1  绪论 4

1.1 课题背景 4

1.2 课题研究的意义 4

1.3课题研究的内容 4

2 智能手机充电器整体设计 5

2.1 设计思路分析 5

2.2 主要器件及其功能 7

3 智能手机充电器硬件电路设计 11

3.1 充电器电路总体设计框图 11

3.2 电路原理图及说明 11

3.3 充电过程 13

4 智能手机充电器软件程序设计 14

4.1 实现功能 14

4.2 主要变量说明 15

4.3 程序流程图 15

4.4 程序说明 17

5 系统调试与仿真 17

5.1 硬件调试 17

5.2 软件调试 18

5.3 智能充电器的proteus仿真 18

6 设计总结与展望 19

结 论 21

参考文献 22

致 谢 词 23

附录A：原理图 24

附录B：程序 25

1  绪论