自绕电感，电感量计算软件，谢谢谢谢谢谢！-Since around the inductor, inductance calculation software, thank you thank you thank you!

用一个 EMI 滤波器插入电源线和 SMPS 之间能消除高频干扰-With an EMI filter is inserted between the power line and SMPS to eliminate high-frequency interference