TY - GEN
T1 - An Approach Combined CPWM with Passive Filter for Reducing EMI in a Flyback Converter
AU - Chentao, Li
AU - Yajing, Tong
AU - Ping, Xu
AU - Qishuang, Ma
N1 - Publisher Copyright:
© 2022 IEEE.
PY - 2022
Y1 - 2022
N2 - Chaotic pulse width modulation(CPWM) was used in power electronic converters to reduce electromagnetic interference (EMI) in recent decades. However, the CPWM technique has a good effect on the higher frequency but less on the lower as expectation, to give a better EMI reduction under 5MHz, this article proposes a method that combined CPWM with a passive filter for reducing EMI in a flyback converter which is the most common topology used in switching mode power supply. Compared with traditional PWM, there is about 20dB reduction can be reached by the proposed method applied in a flyback converter with 100kHz, respectively. Moreover, traditional PWM and Chaotic PWM effects on ripple were also analyzed.
AB - Chaotic pulse width modulation(CPWM) was used in power electronic converters to reduce electromagnetic interference (EMI) in recent decades. However, the CPWM technique has a good effect on the higher frequency but less on the lower as expectation, to give a better EMI reduction under 5MHz, this article proposes a method that combined CPWM with a passive filter for reducing EMI in a flyback converter which is the most common topology used in switching mode power supply. Compared with traditional PWM, there is about 20dB reduction can be reached by the proposed method applied in a flyback converter with 100kHz, respectively. Moreover, traditional PWM and Chaotic PWM effects on ripple were also analyzed.
KW - Electromagnetic interference (EMI)
KW - chaotic pulse width modulation (CPWM)
KW - insert loss
KW - passive filter
KW - voltage ripple
UR - https://www.scopus.com/pages/publications/85129308283
U2 - 10.1109/ICoPESA54515.2022.9754442
DO - 10.1109/ICoPESA54515.2022.9754442
M3 - 会议稿件
AN - SCOPUS:85129308283
T3 - 2022 International Conference on Power Energy Systems and Applications, ICoPESA 2022
SP - 133
EP - 137
BT - 2022 International Conference on Power Energy Systems and Applications, ICoPESA 2022
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2022 International Conference on Power Energy Systems and Applications, ICoPESA 2022
Y2 - 25 February 2022 through 27 February 2022
ER -