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有害氣體的檢測(cè)報(bào)警與抽排電路設(shè)計(jì)-展示頁

2025-06-15 14:20本頁面
  

【正文】 .......................................................... 1 設(shè)計(jì)要求 ............................................................................................................................... 2 .................................................................. 2 設(shè)計(jì)思路 .............................................................................................................................. 2 總方框圖 ............................................................................................................................... 3 電路總原理圖 ........................................................................................................................ 4 電路模塊分析 ........................................................................................................................ 5 電源電路 .................................................................................................................... 5 氣敏傳感器電路 ........................................................................................................... 6 555振蕩電路 ............................................................................................................... 7 聲報(bào)警 光報(bào)警 風(fēng)扇抽排電路 ..................................................................................... 8 整體工作原理說明 ................................................................................................................ 9 3.所用器件說明 ............................................................. 9 7805 三端穩(wěn)壓集成電路 ......................................................................................................... 9 555芯片及其構(gòu)成的多諧振蕩電路 ....................................................................................... 10 QMN5氣敏傳感器 ..............................................................................................................11 繼電器 .................................................................................................................................11 及遇到的問題 ................................................... 12 優(yōu)點(diǎn) .................................................................................................................................... 12 缺點(diǎn) .................................................................................................................................... 12 設(shè)計(jì)過程中遇到的問題 ....................................
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