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.

LM5180在输出8W的时候频率降到20k,变压器出现鸣叫声,设计的输出功率应该为22W

如题,我的电路在输入电压为10v的时候出现了输出功率为8W时,频率降低到20k左右,并且无输出电路图如下所示

所有器件都是按照这个来选择,请问工程师们这是什么原因呢?盼复!谢谢您