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數(shù)據(jù)檢測器設(shè)計
摘要：進(jìn)入到21 世紀(jì), 集成電路作為電子工業(yè)乃至整個信息產(chǎn)業(yè)的基礎(chǔ)，呈現(xiàn)出快速發(fā)展的態(tài)勢。數(shù)字電路比較簡單、抗干擾性強(qiáng)、精度高、便于集成, 因而在無線電通訊、自動控制系統(tǒng)、測量設(shè)備、電子計算機(jī)等領(lǐng)域獲得了日益廣泛的應(yīng)用。數(shù)字電路分為組合邏輯電路和時序邏輯電路兩類。鑒于電子當(dāng)今技術(shù)的迅速發(fā)展，本課題根據(jù)實際需要，提出用數(shù)字電路來設(shè)計脈沖數(shù)據(jù)檢測器。整個電路可分為時序脈沖電路、邊沿觸發(fā)JK觸發(fā)器組成的時序邏輯電路、顯示電路、NE555報警電路等四部分電路。
關(guān)鍵詞：數(shù)字電路；時序脈沖電路；時序邏輯電路; NE555報警路; 邊沿JK觸發(fā)器

The Design Of Data Detection
Abstract Entered the 21st century, integrated circuits and electronics industry as a whole the basis of the information industry, showing a rapid development of the situation. Digital circuit is relatively simple, and anti-sexual and high accuracy, ease of integration, which in radio communications, control systems, measurement equipment, computers and other fields were increasingly wider range of applications. Digital circuit into combinational logic circuit and sequential logic circuit two. In view of today's electronic technology is developing rapidly, according to the actual needs of this project, proposed by the digital circuit design data pulse detector. The whole circuit can be divided into four of the circuit which are sequential pulse circuit; triggered JK flip-flop edge of the sequential logic circuits, display circuit, the NE555alarm circuit.
Key words Digital circuit; timing pulse circuit; sequential logic circuit; NE555 alarm circuit; edge JK flip-flop

1 電路設(shè)計框圖及實現(xiàn)方法 2
1.1 電路設(shè)計框圖 2
1.2 電路設(shè)計實現(xiàn)方法 2
2 數(shù)據(jù)檢測電路設(shè)計 2
2.1數(shù)據(jù)檢測電路原始狀態(tài)圖 2
2.2數(shù)據(jù)檢測電路狀態(tài)化簡 3
2.3數(shù)據(jù)檢測電路狀態(tài)分配圖 3
2.4數(shù)據(jù)檢測電路觸發(fā)器的選擇 4
2.4.1觸發(fā)器的選擇[4]185 4
2.4.2邊沿JK 觸發(fā)器工作原理 5
2.4.3 邊沿JK 觸發(fā)器特性方程 6
2.5數(shù)據(jù)檢測電路驅(qū)動方程及電路設(shè)計 6
2.5.1數(shù)據(jù)檢測電路驅(qū)動方程 6
2.5.2數(shù)據(jù)檢測電路設(shè)計 7
2.6電路自啟動 7
3 報警電路設(shè)計 7
3.1 555定時器 7
3.1.1 555定時器功能 7
3.1.2 555定時器管腳圖 8
3.1.3 555定時器邏輯功能示意圖 8
3.1.4 555定時器真值表 8
3.2報警電路圖 9
3.2.1報警電路設(shè)計方案比較 9
3.2.2 555定時器構(gòu)成多諧振蕩器 9
3.2.3報警電路顯示電路設(shè)計原理圖 10
3.3報警器工作原理 10
4 時鐘脈沖源 10
4.1時鐘脈沖源電路 10
4.2時鐘脈沖源工作原理 11
4.3時鐘脈沖源元件參數(shù)選擇 11
5 數(shù)據(jù)檢測器總電路及工作原理 12
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