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請問用OP做的精密全波整流器
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請問有沒有朋友做過用OP構成的精密全波整流器電路,就是把一個正弦波濾成直流電壓輸出,因為我用的電源條件是5V單電源,而正弦波信號是在VCC/2準位上做振福變化,整流後的DC電壓再送給PIC做AD取樣。

而我現在碰到的問題是整流後的DC電壓並不夠平穩,但是我用雙電源時做出來的就很平穩,不知道這是什麼原因?可否請有經驗的先進指導一下,謝謝。

發表於: 2007/4/20 12:09
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