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现有两种运放电路如上所示，运放正负15V电源供电，请求各位大虾指导我如何计算运放外围电阻的功率，先谢谢了！
这么多电阻都要算吗? 验证电阻的承受功率是否富足吗? 一般运放电路都不会遇到功率不足情况.
其实也不难, 根据输入的信号, 可以计算出电阻两端的电压的. 交流信号的话可以计算幅值来换算有效值.
比方说图2中R80、R85、R143的功率如何计算呢？
