逍遥七星
多功能充电器的硬件开发论文编号:JD781 包括任务书,开题报告,文献综述,外文翻译, 论文字数:14302,页数:29摘 要近年来,随着现代化工业的飞速发展,工业污染日趋严重,节能和环境保护己成为当今世人普遍关注的问题之一。研究低能耗、结构简单、操作简便的多功能充电器是未来发展的一大发展趋势。本文先介绍了多功能充电器开发的背景及意义,之后阐述了多功能能充电器的设计原理。通过4*4键盘可以输入所需充电的时间,在LED上实时显示剩余时间,同时采样充电器的实时电压并经A/D转换,单片机对输入的电压、电流信号进行比较,决定充电模式,通过D/A转换,控制输出信号,比较充电电源的电流、电压值给定,对充电电源电流进行控制,从而达到多功能充电的效果。通过对硬件和软件调试,基本能实现上述功能,具有较强的实用性。关键词:多功能充电器;单片机;蓄电池;A/D转换AbstractIn recent years, with the rapid development of modern industry, industrial pollution was worsening. Energy-saving and environmental protection had become one of the issues of common concern in the world today. Studying the multi-functional charger of low energy, simple structure, simple operating was a major trend of the development in the paper introduced the background and significance of multi-functional Charger firstly, and then introduced the design principle of the multi-functional charger. Through the 4*4 keyboard can input the required charging time, and display the remaining time in the LED, while sampling the real-time voltage of the charger and through the A/D converters, the MCU compared the importation voltage with the current signals, and charging into which mode ,through D/A conversion,controlled the output signal, analysis the given values of current and voltage with the Rechargeable power, and control the current of the charging power , so as to achieve the effect of multi-functional charger . Through the hardware and software debugging, achieved the above functions and the greater :Multi-functional charger;Single chip microcomputer;Storage battery;A/D transformation目 录摘 要 IAbstract II目 录 III第1章 概 述 课题研究的背景及意义 国内外发展现状 本课题研究的内容 4第2章 充电器设计的基本理论 常用充电器的充电方式 多功能充电器的充电原理 7第3章 多功能充电器的硬件设计 电源回路 PWM控制 检测部分 模数转换芯片ADC0809 单片机AT89C51 模数转换芯片DAC0832 时钟电路 概述 寄存器 时间地址 实时时钟硬件接口原理图 LED显示部分 共阳极数码管工作原理 数码显示电路 键盘控制部分 工作原理 矩阵键盘简介 19第4章 硬件系统可靠性设计 电路系统设计 PCB板设计 硬件电路调试 22第5章 总结及展望 总结 展望 23参考文献 24致 谢 25以上回答来自:
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1. Secondary (rechargeable) batteries are commonly tested using discharge and charge cycling.蓄电池(充电电池)通常利用放电和充电循环进行测试。来自互联网2. The solar controller: To control the entire system, and played a battery charge protection, over-discharge protection.太阳能控制器:控制整个系统的工作状态,并对蓄电池起到过充电保护、过放电保护的作用。来自互联网3. The discharging performance of positive active mass containing different additives in lead-acid batteries was studied.对不同添加剂的铅酸蓄电池正极放电性能进行研究。来自互联网4. The discharge characteristics of secondary battery provide im-portant information about the battery's capacity and life.蓄电池的放电特性提供了关于电池容量和寿命的重要信息。来自互联网5. The single battery possibly endures overcharge and overdischarge though the battery operates at normal voltage range.即使在整体不过充电、过放电的状态下,也可以出现单体蓄电池的过充电与过放电。
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具体看哪个省会有不同希望回答能够帮助你你也可以追问
原创论文,包通过,包修改。
这个可以在重庆维普搜各种期刊发表的论文的~
行政管理本科毕业论文 有的怎么 联系你呢。 或是你联下WO吧