摘要
As for the Domino effect dv/dt and electromagnetic interference during the rapid switching course of single-chip switching power supply,this article firstly analyzes electromagnetic interference source,and then diagnoses the essential interaction relationship between interference and switching activity based on the timely and area measured waveform,analyzes and studies the production mechanism and coupling path of interference mode,and sets up circuit model according to the features of transverse mode interference and common mode interference.Put forward different suppression methods finally.
As for the Domino effect dv/dt and electromagnetic interference during the rapid switching course of single- chip switching power supply,this article firstly analyzes electromagnetic interference source,and then diagnoses the essential interaction relationship between interference and switching activity based on the timely and area measured waveform,analyzes and studies the production mechanism and coupling path of interference mode, and sets up circuit model according to the features of transverse mode interference and common mode interference. Put forward different suppression methods finally.
出处
《现代电子技术》
2007年第2期159-161,共3页
Modern Electronics Technique
基金
Tianjin Natunal science Foundation of China(No:05YFSYSF033)
