PCB布板不当引起Surge测试Fail的原因分析和改善方案探讨

Analysis and improvement of surge test fail caused by improper PCB layout

本文研究了变频冰箱因PCB板布局走线不当而引起的浪涌(Surge)测试Fail的原因,提出了通过调整变频电路部分PCB板的地线走线以及去耦滤波电容的放置位置来提升变频电路抵抗Surge干扰能力的方法并解决问题。

This paper studies the reason of Surge test fail caused by the improper layout of PCB proposes a method to improve the performance of variable frequency circuit to resist Surge interference and solve the problem by adjusting the ground trace and decoupling capacitance of PCB of variable frequency circuit