新型电源滤波器的设计与开发

Design and Development of a New Power Supply Filter

开关电源的应用场景越来越多,各种电子设备之间的电磁干扰使电源系统的工作环境越来越恶劣,电源系统的电磁兼容问题也受到了更广泛的关注。文中针对电源端口的传导干扰问题,分析了电源滤波器的设计流程和主要设计指标参数,开发出小型化、高插损的电源滤波器,有效解决开关电源的电磁传导干扰问题,从而保障电源系统的稳定工作。

There are more and more application scenarios of switching power supplies.The electromagnetic interfer⁃ence between various electronic devices makes the working environment of the power system more and more severe.The electromagnetic compatibility of the power system has attracted more attention.This study analyzes the design process and main design parameters of the power supply filter for the conduction interference problem of the power supply port,and develops a miniaturized and high insertion⁃loss power filter to effectively solve the electromagnetic conduction interference problem of the switching power supply,thus to ensure stable operation of the power system.