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运放电路输出波形发生振荡怎么办?不要慌,教你一步步分析问题所在
闭环增益和开环增益的计算方式如下: Acl=Aol/(1+Aol*β) Acl:运放电路闭环增益 Aol:运放开环增益 β:闭环电路反馈因子 当分母1+Aol*β=0时,运放电路闭环增益Acl就会等于无穷大,这样运放电路就会处于不稳定状态,此时Aol*β=-1,所以分析运放稳定性就是在分析在 ...
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