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关于TPA3110的输出功率问题

在固定负载,固定增益的情况下。输出电压应该也是确定了的啊。那么输出功率应该也是固定值了。

为什么看datasheet有关output power随着几个参数变化的曲线图中,输出功率会随着供电电压变化而变化。