Title :
EMI Filter Design for Power Supplies
Author :
Li, Wen Xing ; Feng, Chao ; Liu, Xing ; Li, Ping
Author_Institution :
Harbin Eng. Univ., Harbin, China
Abstract :
This paper introduces a method to design the external electromagnetic interference (EMI) filters for switching power supplies. The thesis expounds theory and calculates the filter insertion loss, then analyses the impact of the source impedance and the components model on insertion loss. According to the conducted EMI waveform of switching power supply, we make the corresponding EMI filter, and verify the feasibility of design method with experiments.
Keywords :
electromagnetic interference; power filters; switched mode power supplies; electromagnetic interference filter; filter insertion loss; source impedance; switching power supplies; Delta modulation; Electromagnetic interference; Impedance; Noise; Power filters; Power harmonic filters; Power supplies; EMI filte; Electromagnetic interference (EMI); common mode (CM); differential mode (DM);
Conference_Titel :
Measuring Technology and Mechatronics Automation (ICMTMA), 2011 Third International Conference on
Conference_Location :
Shangshai
Print_ISBN :
978-1-4244-9010-3
DOI :
10.1109/ICMTMA.2011.295
