无法理解eDesign Studio Viper26的原理图

大家好，


我花了几个星期的时间试图找到一种AC / DC转换器小型化的解决方案。

今天我以为我已经找到了使用Viper26和精湛的eDesignSuite工具的解决方案，但是当我分析附加的结果电路时，我只是不明白两个不同接地的含义，用三角形表示（电路接地，我猜）和其他由三条水平条纹代表（也许是地球插头？）。

在丰富的文档ST中，我没有找到任何描述，也没有找到这两种类型的理由的例子，此外，我发现令人震惊的是GND / Source输出直接连接到电路接地并通过D连接到另一个接地（地球插头？）。

我感谢您的帮助。感谢您的时间和关注。



以下为原文





Hi to all,


I take weeks trying to find a solution for miniaturization of an AC / DC Converter.

Today I thought I had found the solution with the Viper26 and superb eDesignSuite tool but when I analyzed the attached resulting circuit, I just do not understand the meaning of the two different grounds, represented by a triangle (circuit ground, I guess) and the other represented by three horizontal stripes (earth plug, perhaps?).

In the abundant documentation ST, I haven't found anything nor description, nor examples with these two types of grounds, besides, I find it shocking that the GND/Source output is connected directly to the circuit ground and through D to the another ground (earth plug?).

I appreciate your help. Thank you for your time and attention.