TY - GEN
T1 - Common-Mode EMI Modeling and Analysis for GaN-Based Full-Bridge CRM PFC under Unipolar PWM Scheme
AU - Zhu, Hongkeng
AU - Li, Bingyang
AU - Wang, Kangping
AU - Yang, Xu
N1 - Publisher Copyright:
© 2020 IEEE.
PY - 2020/9/23
Y1 - 2020/9/23
N2 - Bridgeless power factor correction (PFC) circuits achieve higher efficiency with less components but generate higher electro-magnetic interference (EMI) noises than conventional boost PFC. This paper firstly introduces a novel control scheme that adopts unipolar double-frequency PWM scheme and critical mode (CRM) operation for single-phase full-bridge PFC rectifier, aiming at increasing power density and efficiency. To evaluate the EMI level of full-bridge PFC with the proposed control scheme, a universal common mode (CM) model is presented and the CM voltage noise equation is derived, which are also applicable to other full-bridge applications under different PWM schemes. Finally, the CM model is employed to compare three configurations of inductor from the EMI point of view for a GaN-based full-bridge PFC.
AB - Bridgeless power factor correction (PFC) circuits achieve higher efficiency with less components but generate higher electro-magnetic interference (EMI) noises than conventional boost PFC. This paper firstly introduces a novel control scheme that adopts unipolar double-frequency PWM scheme and critical mode (CRM) operation for single-phase full-bridge PFC rectifier, aiming at increasing power density and efficiency. To evaluate the EMI level of full-bridge PFC with the proposed control scheme, a universal common mode (CM) model is presented and the CM voltage noise equation is derived, which are also applicable to other full-bridge applications under different PWM schemes. Finally, the CM model is employed to compare three configurations of inductor from the EMI point of view for a GaN-based full-bridge PFC.
KW - bridgeless power factor correction (PFC)
KW - common mode (CM) noise modeling
KW - single-phase full-bridge PFC rectifier
KW - unipolar pulse-width-modulation (PWM) scheme
UR - https://www.scopus.com/pages/publications/85102289234
U2 - 10.1109/WiPDAAsia49671.2020.9360281
DO - 10.1109/WiPDAAsia49671.2020.9360281
M3 - 会议稿件
AN - SCOPUS:85102289234
T3 - 2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2020
BT - 2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2020
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2020 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2020
Y2 - 23 September 2020 through 25 September 2020
ER -