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运放稳定性——环路增益和误差

大家新年好,最近在看Tim Green运放稳定性的文档,第一部分14页(图1.23)有个地方不明白,就是运放的环路增益等于1时,文档说就没有环路增益纠正误差,闭环响应就会跟随开环响应曲线,具体如图所示,为了不耽误大家太多时间,把不懂的地方截图了,往前辈们指点

Operational Amplifier Stability - Part 1 of 15 Loop Stability Basics.pdf