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Negative-peak detector负峰值检知器电路: R1= 1 M, C1= 10 uF 只有在I/P电位低于OP-端电位时, O/P电位继续降低.负峰值必须高于电源负值，所得数据为最高值。......
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Opamps are very useful. But one of their major drawbacks is the requirement of a dual supply. This seriously l......
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