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.

LM3478: 的应用实例

Part Number: LM3478

您好!请问

1.在这张电路图中LM3478引脚7为何要连接开关器件T2?该芯片内部震荡频率不是固定的吗?

2.开关器件Q4具体作用是什么呢?

3.关于芯片LM3478在反激式开关电源中的应用有无具体实例可供参考?