數(shù)字電子技術(shù)基礎(chǔ)課程設計報告-智力競賽搶答器-展示頁
2024-11-15 16:50本頁面
【正文】 ertainly market. This vies to answer first by using only very clever design and realize the digital digital chips. In knowledge responder petitions, especially when the topic, in doing vies to answer first vies to answer first process, in order to know what a group or a player to answer, you must have a system to plete this task. If only by the people in vies to answer first the vision is to figure out which group to answer. This design is to use several triggers and transistor clever design contest, above the problems were solved, even if the two groups of vies to answer first time, also can differ microseconds distinguish which group of priority. This paper introduces the working principle and the responder design, and its practical applications. The design of the quizzes responder, mainly consists of three parts: a few D flipflop is posed of a part, the responder used by several JK flipflop is used 74LS4511 and constitute part, another is down by two 74190 constitute a reversible counter JiFenQi, namely. 2 設計 以下是智力搶答器的原理框圖 以下是 智力搶答器的方案流程圖 方案一 圖 方案一流程圖 搶答器主要是由四個三極管、和四個 D 觸發(fā)器以及四個或非門構(gòu)成，其中三極管是與主持人一起配合使用，用來控制是否開始搶答，當主持人將開關(guān)接地時，三極管截至，此時三極管可以當作一個二極管使用當有選手搶答時就通過三極管將信號傳送給 D 觸發(fā)器， D 觸發(fā)搶答模塊 彩燈模塊聲響模塊時間模塊彩燈系統(tǒng)揚聲器掃描電路 數(shù)碼管秒脈沖 計時控制 顯示 搶答控制器 聲光提示 倒計時顯示 主持人控 制 計分器 3 器在將信號傳送給或非門并將其他選手鎖 存，同時將信號送給發(fā)光二極管與喇叭。 這次設計的智力競賽搶答器，主要是由三個部分構(gòu)成：一個是由幾個 D 觸發(fā)器的構(gòu)成的用于搶答的部 分，一個是由幾個 JK 觸發(fā)器和 74LS4511 構(gòu)成用于倒計時，另外一部分則是由兩個74190 構(gòu)成的一個可逆計數(shù)器，即計分器。這次設計就是用幾個觸發(fā)器以及三極管巧妙的設計搶答器，使以上問題得以解決，即使兩組的搶答時間相差幾微秒，也可分辨出哪組優(yōu)先答題。 目 錄 前言 ..................................................................1 總體方案設計 ..........................................................2 方案比較 ..........................................................2 方案論證及選擇 ....................................................4 主要器件介紹 ..........................................................4 單元模塊設計 .........................................................5 搶答器電路 ........................................................5 計時器電路 ........................................................7 計分器電路 ........................................................8 系統(tǒng)功能調(diào)試 .........................................................10 總結(jié)與體會 ............................................................10 參考文獻資料 .......................
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