Design and Shielding Effectiveness Simulation of Anechoic Chamber with Multi-Magnetic Power Source

doi:10.16628/j.cnki.2095-8188.2021.07.011

Abstract

Abstract:

In order to study the influence of shielding effectiveness caused by introducing multi-magnetic circuit power source on anechoic chamber in a low-voltage apparatus in the EMC test.A simulation model for calculating the shielding effectiveness of an anechoic chamber is established and then the accuracy of the model is verified by experiments.Then the simulation model is used to calculate the influence of shielding effectiveness of anechoic chamber after a multi-magnetic circuit power source is introduced.A new shielding chamber around the anechoic chamber is proposed to store the multi-circuit magnetic system,and the control part of the multi-magnetic circuit system is separated from the shielding chamber.In this method a multi-magnetic circuit system is introduced into the chamber,but the high frequency electromagnetic noise is avoided.

Key words: multi-magnetic circuit power source, anechoic chamber, shielding effectiveness, EMC

CLC Number:

TM46

SONG Zihao, WU Guichu, ZHANG Shangcong, CHEN Chong. Design and Shielding Effectiveness Simulation of Anechoic Chamber with Multi-Magnetic Power Source[J]. LOW VOLTAGE APPARATUS, 2021, 0(7): 61-65.

Figures/Tables 7

References 15

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