【正文】
計數(shù)等功能,共引腳排列及邏輯符號如圖25(a)(b)所示。隨著輸出電壓的增大,二極管的正向電阻逐漸減小,直至RF1+RF2=2R1,電路達到穩(wěn)定狀態(tài)。保持不變,即電路中產(chǎn)生了一個正弦信號。 Counting circuit. 一、設計一個頻率可調的正弦波產(chǎn)生電路 產(chǎn)生正弦振蕩電路的方框圖如下由圖可知它是由放大電A和反饋網(wǎng)絡F組成。關鍵字:頻率幅度可調;正弦波產(chǎn)生電路;正弦波轉化方波電路;計數(shù)電路。 摘要正弦波信號是生活中比較常見的信號,而方波也是在我們的學習和生活中所比較熟悉的,而關鍵是怎樣進行把我們日常所見的正弦波轉化成方波并且運用所學的時鐘數(shù)字電路對所轉化的方波進行計數(shù)。AbstractSine wave signals is more mon in life, and the square wave is also familiar with in our .study and life, and the key is how to convert the sine wave of our everyday ChengFangBo and apply what they have learned by conversion of the digital circuit of clock square wave count.Through this course designed to consolidate and deepen the understanding of basic knowledge of electronic electrician technology lesson and