EMI滤波器在反激式开关电源中的研究与实现:电源技术的发展使得体积小、高效能、高可靠性“绿色电源”成为下一代电源的发展趋势。但开关电源由于本身工作特性使得电磁干扰问题相当突出,电源作为一个电子系统中重要的部件,其可靠性决定了整个系统的可靠性。EMI( Electromagnet2ic Interference) 滤波器是由电感、电容等构成的无源双向多端口网络,能衰减共模和差模干扰,提高电子仪器、计算机和测控系统的抗干扰能力及可靠性。在研究了EMI 滤波器原理基础上,提出了EMI 滤波器在反激式开关电源中的设计与实现。关键词:电磁干扰; EMI 滤波器;共模;差模

文档内容节选

2 2 2 29 2006 2 6 Chinese J ournal of Elect ron Devices Vol 29 No 2 J un 2006 Design and Implementation of EMI Filter to the Flyback Switching Power Supply L I U Zhen g qi n g Z E N G Zhi g an g De pt of Elect En g H unan I nstit ute of En gi neeri n g H unan X i an gt an 411101 Chi na line power supply is becoming p re Abstract The green requisting based on t he develop ment of power supply stechnology wit h microminiat urization high energy efficency high credibilit y Because of t he ......