【正文】 踐的認(rèn)識。施密特觸發(fā)器電路如 圖 3 所示。 目錄 系統(tǒng)整體結(jié)構(gòu) ......................................................................................................1 模擬電子部分 ......................................................................................................1 聲音傳感器 ....................................................................................................1 放大電路 ........................................................................................................1 整形電路 ........................................................................................................2 單穩(wěn)態(tài)觸發(fā)器 ................................................................................................2 發(fā)光二極管模塊 .............................................................................................3 數(shù)字電子部分 ......................................................................................................3 時鐘發(fā)生電路 ................................................................................................3 計數(shù)器與選通電路 .........................................................................................4 譯碼器和數(shù)碼顯示管 .....................................................................................5 整體結(jié)構(gòu)分析、仿真與實現(xiàn) ...............................................................................6 電路調(diào)試及各模塊波形 ..........................