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TPA6111A2

Other Parts Discussed in Thread: TPA6111A2

问题:使用TPA6111A2,当放大倍数为1倍时,R1=20K,其反馈电阻RF=22K,空载时候电压不升高,不发热.而当我要提高放大倍数为2倍时候,反馈电阻RF=51K的时候,空载时电压升高发热,负载时电压降低,就不会发热.请问是何原因,如何解决问题?谢谢!