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如图，VB引脚通过Rctl,再接到CTL引脚，再接到光耦，，请问这一部分怎么理解，怎么计算等。谢谢
Hi
这类芯片的参考设计文档： http://www.ti.com.cn/cn/lit/an/slva305c/slva305c.pdf
对于相关参数的计算上述文档都描绘得很清楚。
