This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

LM3886实验现象分析续

一组实验数据:

输入信号频率:45KHZ,正弦波;

供电电压:+24V,-24V;

示波器显示峰峰值:47Vpp(放大倍数正常);

万用表测量交流电流值:0.922A;

负载:8欧;

功率计算:24/根号2 x 0.922=15.6W;

请问这个输出功率值是正常的吗?我怎么感觉这个实际值跟我想的有点偏小,电压都加到正负24V了,电流都不到1A,功率才15.6W