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电路是手册上的2倍放大
供电是7815和7915
吧输入信号对地接1k电阻电压会降到160mv
输入信号后输出的直流消失
估计你的静态工作, 是输入悬空了吧,
手册看, 静态测试是输入信号置零后测试的.
找到原因了
就是输入悬空然耦合电容吧噪声积分了然后就饱和了
