基于單片機(jī)的相位測(cè)量?jī)x設(shè)計(jì)制作畢業(yè)設(shè)計(jì)-展示頁(yè)
2025-03-10 12:11本頁(yè)面
【正文】 的精確測(cè)量。 關(guān)鍵字：?jiǎn)纹瑱C(jī) 相位差測(cè)量 1602 The design and implementation of intelligent charger ABSTRACT In our daily life, mobile phone has bee more and more important. We often need to use a mobile phone, phone calls, text messaging, surfing the Inter, watching movies, listening to music, play games, and so on. With large screen and high frequency mobile phone, lithium ion battery bees more important, the lithium ion battery charger also brought to the attention of the consumers. This product adopts the liion battery charger IC MAX1898, through STC89C52RC control can realize prefi lled, fast charging, and constant voltage charge. By setting the other can easily change the charging time, etc., you can also monitor the charging process of each state, as well as the use of 1602 convenient displays information about the charging current. This design implements the circuit is simple, low cost, and charge effect is very good, including the high security, short timeconsuming, small damage to the battery, and meet the requirements of general users. Key words: single chip MAX1898 1602 目 錄 摘 要 ..................................................................... ABSTRACT ................................................................... 目 錄 ..................................................................... 1 緒論 ................................................................... 1 2 設(shè)計(jì)原理與方案論證 ....................................................... 1 設(shè)計(jì)要求 .................................................................... 1 方案論證 .................................................................... 2 控制部分的方案選擇和論證 ................................................... 2 顯示模塊的選擇方案和論證 ................................................... 2 相位測(cè)量方案選擇和論證 ..................................................... 3 相位差測(cè)量原理論證 ........................................................... 3 3 系統(tǒng)硬件電路設(shè)計(jì) .......................................................... 3 各單元模塊功能分析及模塊電路設(shè)計(jì) ............................................. 5 單片機(jī)控制模塊 .......................................................... 5 穩(wěn)壓電路設(shè)計(jì) .............................................................. 6 相位差測(cè)量模塊 ............................................................. 7 顯示模塊 ................................................................. 10 4 軟件部分設(shè)計(jì) ........................................................... 12 C語(yǔ)言的簡(jiǎn)介 ................................................................ 13 計(jì)思想 ............................................................ 13 5 仿真調(diào)試及結(jié)果 .......................................................... 15 硬件的調(diào)試 ................................................................. 16 軟件調(diào)試 ................................................................... 16 PROTEUS 中仿真圖的繪制與調(diào)試 .................................................. 17 仿真圖的繪制 ............................................................. 17 仿真結(jié)果 ................................................................. 20 .............................................................. 21 設(shè)計(jì)結(jié)果 ................................................................. 21 設(shè)計(jì)總結(jié) ................................................................. 21 參考文獻(xiàn) ................................................................. 22 致 謝 ................................................................. 24 附錄 ..................................................................... 25 1 1 緒論 在電子測(cè)量技術(shù)中，相位測(cè)量時(shí)最基本的測(cè)量手段之一，相位測(cè)量?jī)x式電子領(lǐng)域的常用儀器。硬件結(jié)構(gòu)簡(jiǎn)單 , 程序簡(jiǎn)單可讀寫性強(qiáng) ,軟件采用 C 語(yǔ)言實(shí)現(xiàn)。 。 基于單片機(jī)的相位測(cè)量?jī)x設(shè)計(jì)制作 摘 要 本次設(shè)計(jì) 提出了一種基于 8051 單片機(jī)開發(fā)的相位差測(cè)量?jī)x的設(shè)計(jì)， 系統(tǒng)以單片機(jī)8051 及計(jì)數(shù)器 為核心 , 構(gòu)成完備的測(cè)量系統(tǒng)。 系統(tǒng) 可以對(duì) 20Hz～ 20kHz 頻率范圍的信號(hào)進(jìn)行頻率、相位等參數(shù)的精確測(cè)量 , 測(cè)相絕對(duì)誤差不大于 1176。系統(tǒng)采用液晶 1602顯示被測(cè)信號(hào)的頻率、相位差。與傳統(tǒng)的電路系統(tǒng)相比 , 其有處理速度快、穩(wěn)定性高、性價(jià)比高的優(yōu)點(diǎn)。隨著相位測(cè)量技術(shù)廣泛 應(yīng)用于科學(xué)研究、實(shí)驗(yàn)、生產(chǎn)實(shí)踐等各個(gè)領(lǐng)域，對(duì)相位測(cè)量技術(shù)的要求也向高精度高智能化方向發(fā)展，在低頻范圍內(nèi)
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