【正文】
電池充電下面六個圖是不同的充電方式的時間與電流、電壓關(guān)系示意圖。電池容量和重量(或尺寸)之比稱之為電池的存儲密度。沒有一個電池能永久地儲存能量。限制電池性能的主要因素是化學(xué)成分的反應(yīng)率、電池設(shè)計和發(fā)生反應(yīng)的區(qū)域。電池的化學(xué)成分和設(shè)計一起限定電池所能提供的電流。電池的額定容量(Ah或mAh)是在特定條件下完全充電時所能儲存(產(chǎn)生)的電量?! 〕潆娀蚍烹婋娏?安培)通常表示為額定容量的倍數(shù)(稱之為C率)。反之,可充電電池稱之為二次電池,二次電池由充電器充電而在應(yīng)用中放電?! ∫淮涡噪姵?稱之為不可充電或初級電池)從恒定變化電池的化學(xué)反應(yīng)產(chǎn)生電能?! ‰姵胤Q之為能量儲存系統(tǒng),這也包括續(xù)流和時鐘源。電池正在變得更小、更輕,在單位容積內(nèi)可容納更多能量。 charge protect。 MAX1898。關(guān)鍵字:智能充電器;MAX1898;預(yù)充;充電保護;充電報警。這一章主要介紹了軟硬件調(diào)試環(huán)境,調(diào)試過程,調(diào)試中碰到的問題及其解決方法,并給出了系統(tǒng)部分調(diào)試的結(jié)果。這一章詳細地介紹了手機鋰電池智能充電器軟件的總體構(gòu)架及程序說明;最后介紹了主要功能的具體實現(xiàn)。首先介紹了設(shè)計思路和主要器件,然后詳細地介紹了手機鋰電池智能充電器硬件部分的總體結(jié)構(gòu)設(shè)計和各部分電路的設(shè)計,并給出了相應(yīng)原理圖。綜述了電池、充電知識與充電器,提出了本論文的研究內(nèi)容以及系統(tǒng)設(shè)計的目標。論文共分為五章。對基于單片機的充電器的智能部分的設(shè)計與實現(xiàn)的研究,是本論文研究的主要任務(wù)。所有手機充電器其實都是由一個穩(wěn)定電源加上必要的恒流、限壓、限時等控制電路構(gòu)成。摘 要隨著手機的普及,手機充電器已經(jīng)成為現(xiàn)代家庭中常用的電器之一。雖然手機的品牌和型號眾多,各種手充電器形狀和接口不同,但它們的原理和功能基本一樣,電路結(jié)構(gòu)大同小異。本論文將以單片機和充電芯片MAX1898為核心來構(gòu)建一種智能充電器。本論文的重點有兩方面內(nèi)容:;。第一章是緒論部分。第二章是手機鋰電池智能充電器的硬件結(jié)構(gòu)設(shè)計部分,該部分是本論文的重點之一。 第三章 是手機鋰電池智能充電器軟件設(shè)計部分,該部分是本論文的另一個重點。 第四章是系統(tǒng)實現(xiàn)及調(diào)試部分。最后一章后對本文的研究內(nèi)容做了總結(jié),并對基于單片機的手機智能充電器的發(fā)展作了展望。AbstractAs the popularization of the mobile phone, the mobile charger bees the universal electric appliance in family. Although the difference of the brands and models exists, the principle and function of mobile phone and mobile charger are similar, and their circuits are also resemblance. The entire mobile phone charger contains a constant voltage source and some circuits that contains the constant current, limit voltage or limit time. In this thesis, an intelligent charger with the center of MCU and a charge chip MAX1898 is elaborates. The main task of the project is the design and realization of an intelligent phone charger based on the MCU. The emphasis of this thesis contains two parts: first, realization of charge, second, realization of intelligence. There are five chapters posed this thesis. The first part is preface. It elaborates the knowledge about battery, charger and how to charge the battery. It also introduces the task of the project and the purpose of this design.The second part introduces the hardware construction of the designed intelligent mobile telephone charger for Lithium battery. It is one of the emphases of this thesis. It introduces the design’s thought and the main chips, and then, introduces the main construction and all parts of the circuit in detail. It also gives the principle schemes. The third chapter is another emphasis of this thesis. It is software design of mobile phone battery charger. This part introduces the main construction and procedure of the charger in detail. It introduces how to realize the function at last.The forth part introduces how to realize and debug this charge system. It contains the environment of debugging hardware/software, debugging procedure, the problem that will be found in debug and how to deal with it and also gives some result of debugging. The last chapter is to summarize this research and gives the prospect of MCU’s mobile phone intelligent charger.Keywords: intelligent charger。 precharge。 charge alarm.目 錄第1章 緒論………………………………………………………………………………1 充電電池簡介…………………………………………………………………………1 電池定義…………………………………………………………………………1 電池充電…………………………………………………………………………1 常見充電電池……………………………………………………………………3 充電知識簡介…………………………………………………………………………4 充電方法…………………………………………………………………………4 快速充電的基本原理……………………………………………………………4 充電器知識簡介………………………………………………………………………5 充電器要求………………………………………………………………………5 充電終點控制方法………………………………………………………………5 手機鋰電池充電知識簡介……………………………………………………………6 鋰電池……………………………………………………………………………6 鋰電池充電………………………………………………………………………7 現(xiàn)代鋰離子電池充電器…………………………………………………………7 本課題的設(shè)計任務(wù)……………………………………………………………………8第2章 手機鋰電池智能充電器硬件設(shè)計…………………………………………9 設(shè)計思路分析…………………………………………………………………………9 充電器的智能化要求……………………………………………………………9 充電器智能化實現(xiàn)………………………………………………………………9 主要器件及其功能……………………………………………………………………9 AT89C51引腳說明………………………………………………………………9 MAX1898引腳說明………………………………………………………………11 6N137引腳說明…………………………………………………………………13 電路原理圖及說明……………………………………………………………………14 單片機電路………………………………………………………………………14 電壓轉(zhuǎn)換及光藕隔離部分電路…………………………………………………15 充電控制電路……………………………………………………………………15 充電過程………………………………………………………………………………16 預(yù)充………………………………………………………………………………16 快充………………………………………………………………………………16 滿充………………………………………………………………………………16 斷電………………………………………………………………………………17 報警………………………………………………………………………………17第3章 手機鋰電池智能充電器軟件設(shè)計…………………………………………18 實現(xiàn)功能………………………………………………………………………………18 程序程序圖……………………………………………………………………………18 流程圖一…………………………………………………………………………18 流程圖二…………………………………………………………………………19 流程圖三……………………………………………………