摘要时代的快速发展使得电子行业的发展也越来越迅速，便携式和小型轻量化的电子产品也丰富多彩起来，而大部分的电子产品采用电池供电。日前，电池的种类包涵有镍镉、镍氢、铅蓄电池和锂电池等。这些电池的特点各有不同，那就决定了它们在接下来的时期内有共同共存发展的可能。根据不同类型电池的充电特性的不同，对不同类型，甚至不同电压、容量等级的电池都需要使用不同的充电器，而实际应用却有所不便。[1]68863

本次设计的充电器是基于单片机设计的智能锂离子电池充电器，其中应用了简便、高利用的硬件，编写出了稳定性较好的软件，对系统的硬件组成，包括本充电器的充电控制电路、ADC芯片、单片机电路、AT89C51单片机、电压转换及光耦隔离电路，进行了十分详细的介绍[2]。本设计阐述了以系统软硬件为基础，C语言进行详细设计和编码的软件为工具，设计出安全可靠的智能充电系统。

智能充电器是电子产品长时间使用的一种更科学的保障，在日常应用中可以极大的延长充电电池的寿命。

该论文有图20幅，表3个，参考文献19篇。

毕业论文关键词:充电器  单片机  锂电池  ADC0832

Smart Charger

Abstract

With the rapid development of the times, the development of the electronic industry has become more and more rapid, portable and small lightweight electronic products are also rich and colorful, and most of the electronic products using battery powered. Recently, the types of batteries included nickel cadmium, nickel metal hydride, lead-acid batteries and lithium batteries etc.. The characteristics of these batteries are different, it is determined that they have the possibility of common coexistence and development in the next period of time. According to different types of battery charging characteristics, different types, or even different voltage, capacity level of the battery needs to use different chargers, but the actual application is not.

The design of the charger is smart Li ion battery charger based on single chip design, which is used by the simple, high utilization of hardware and compiled the good stability of the software and hardware of the system, including the charger charging control circuit, ADC, monolithic machine circuit, AT89C51 microcontroller, voltage conversion and optocoupler isolation circuit, very detailed introduction. The design of the system software and hardware as the foundation, C language for the detailed design and coding of the software as a tool to design a safe and reliable intelligent charging system.

Intelligent charger is a more scientific guarantee for long time use of electronic products, which can greatly prolong the life of rechargeable battery in daily application.

Key Words:charger  MCU  lithium battery  ADC0832

目  录

摘要 Ⅰ

Abstract Ⅱ

目录 III

引言 1

第1章 绪论 2

1.1 课题研究的背景 2

1.2 本次设计的目的及其意义 3

1.3 本课题研究的必要性及其作用 3

1.4 本次设计研究的主要内容 4

第2章 电池的充电方法与充电控制技术 5

2.1 电池充能方式的介绍 5

2.2 充电器结构 9

第3章 锂电池充电器硬件设计