数字式智能充电器设计_毕业设计论文.doc

毕业设计论文 数字式智能充电器 摘 要 随着生活中越来越多的人使用移动电子设备，各种各样的充电电池也应运而生；对于不同的充电电池，我们需要选择不同类型的的充电器，但充电器的性能却不能满足充电电池的充电需求；在硬件电路和软件设计方面还存在许多功能上的不足。面对目前市场上不同类型充电器功能上的不完善，结合各种充电电池的实际需求；设计了一种数字式智能充电器。 数字式智能充电器可以给端电压为 1.5V～16.8V INTELLIGENT DIGITAL CHARGER ABSTRACT As more and more people are using mobile devices for life, all kinds of rechargeable batteries also arises at the historic moment; For different rechargeable battery, we need to choose different types of chargers, but charger performance cannot meet the demand of rechargeable battery charge; There are many in the hardware circuit and software design function. Faced with different types of chargers on the market at present the function of the imperfect, combined with the actual needs of all kinds of rechargeable batteries; We design a digital intelligent charger. Intelligent digital charger can give a voltage of 1.5 V ~ 16.8 V nickel-cadmium batteries, nickel metal hydride batteries and lithium battery charge and discharge, at the same time also can give small capacity and low voltage battery recharged. This design use AVR single chip microcomputer to control charging rechargeable batteries for digital intelligent, real-time monitoring of battery during charging charging voltage and charging current in time in time, the charging process, according to the ideal charging curve in order to more reasonable use of the battery at the same time, digital intelligent charger also joined in the discharge of battery module, for different types of battery discharge that can prolong the service life of the battery; Charger uses the voltage control, temperature control, PID constant current control, in order to achieve both can protect the battery, you can also make the battery effect, realized the digital intelligent charge and discharge. KEY WORDS: charger ，intelligent，control，voltage，current 前　言 1 第1章 绪论 2 1.1 充电器的开发背景 2 1.2 数字式智能充电器的开发要求 3 第2章 方案的选择 4 2.1 方案选择的原理 4 2.2 方案选择的特点 4 第3章 电池的充电特性和控制算法 6 3.1 电池的充电特性 6 3.1.1 锂离子电池 6 3.1.2 镍镉、