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问题:几个月前,您曾经讨论过如何防止开关电源的固有高频噪声进入敏感的模拟电路中影响其性能。我现在发现我的运算放大器嗡嗡作响,采用电源滤波也没有什么用处。请问我该怎么办呢?
Problem: A few months ago, you discussed how to prevent the inherent high frequency noise from switching power supplies from entering sensitive analog circuits and affecting their performance. I now find my op amp buzzing and using power filtering too ineffective. May I ask what should I do?