1、 编号 毕 业 论 文毕 业 论 文 题 目 电动自行车充电器的设计与制作 学生姓名 学 号 系 部 电子工程学院 专 业 电子信息工程技术 班 级 指导教师 顾问教师 二一一年六月 摘 要 I 摘摘 要要 文章主要介绍近年来,电动自行车市场与其相关的配套产品和技术的不 断发展。电动自行车作为新一代的绿色环保的代步工具,其技术也是我们要 讨论的内容,其核心问题就是充电器。本文将讨论密封铅酸蓄电池的分类, 充电特性,工作原理,硬件电路的设计以及其未来的发展趋势。随着电动车 的普及,电动车充电器的使用也越来越广泛。充电器的种类很多,其原理大 同小异。物美价廉使其得到广泛应用。本设计是基于对电动车充
2、电,采用普 通的电子元件、不用昂贵的专用集成电路,既便于制作又降低制作费用。 本次电动车充电器的设计是将 220V 市电经整流、滤波、稳压输出 44V 对电池进行充电, 同时本电路具有电压保护电路及灯光指示充电状态的功能。 主电路主要分为电源电路、振荡电路、电压保护电路、充电状态指示电路四 个单元电路。基准电路采用 TL431 精密基准稳压源输出 2.5V 电压以控制电 压变化,LM324 四运算放大器起到过流保护、稳定输出电压、控制充放电状 态等作用。本次设计主要从总体方案设计、基本电路介绍、单元电路设计等 方面进行详细的介绍。 关键词关键词:充电器 类型 振荡 保护电路 Abstract
3、II A Abstractbstract(外语专业的需要)(外语专业的需要) This paper mainly introduces the recent, electric bicycle market and the relevant supporting products and the development of technology. Electric bicycle as a new generation of green environmental protection, the technology of transport is also our to talk abou
4、t the content, the key issue is the charger. This paper will discuss the classification of sealing lead-acid battery charging, characteristics and work principle, the hardware circuit design and its future development trend is predicted. With the popularity of the electric car, the use of the electr
5、ic car charger more and more widely. There are many kinds of charger, the principle of the same. Cheap and fine make its widely used. This design is based on electric vehicle charging, using common electronic components, need not expensive application-specific integrated circuit, convenient for prod
6、uction and reduce the production cost. The electric car charger design is 220 V, filter, the utility the rectifier voltage output 44 V battery charging for, at the same time this circuit has a voltage protection circuit and the function of the charging light instructions. Main circuit are divided into power supply circuit, oscillating circuit, voltage protection circuit, indications for charging status circuit four unit circuit. Benchmark circuits using