TY - GEN
T1 - A phase-shift-based synchronous rectification scheme for bi-directional high-step-down CLLC resonant converters
AU - Gao, Yucheng
AU - Sun, Kai
AU - Lin, Xiang
AU - Guo, Zhiqiang
N1 - Publisher Copyright:
© 2018 IEEE.
PY - 2018/4/18
Y1 - 2018/4/18
N2 - A frequency-modulated bi-directional CLLC resonant converter with high-step-down feature designed for power-to-gas applications is presented. To avoid magnetizing current being provided from low voltage side, which causes remarkable conduction loss and current stress in a high-step-down design, a novel synchronous rectification scheme based on small phase shift technique is proposed. The switching transient under the proposed scheme is analyzed, which indicates that the reactive current of low-voltage side can be eliminated when the switching frequency equals the resonant one. Furthermore, the steady-state characteristics of the converter are discussed. A prototype is built, and experimental results have verified the principles and the benefits of the proposed scheme.
AB - A frequency-modulated bi-directional CLLC resonant converter with high-step-down feature designed for power-to-gas applications is presented. To avoid magnetizing current being provided from low voltage side, which causes remarkable conduction loss and current stress in a high-step-down design, a novel synchronous rectification scheme based on small phase shift technique is proposed. The switching transient under the proposed scheme is analyzed, which indicates that the reactive current of low-voltage side can be eliminated when the switching frequency equals the resonant one. Furthermore, the steady-state characteristics of the converter are discussed. A prototype is built, and experimental results have verified the principles and the benefits of the proposed scheme.
KW - CLLC resonant converter
KW - High-step-down
KW - Phase shift
KW - Synchronous rectification
UR - https://www.scopus.com/pages/publications/85046969843
U2 - 10.1109/APEC.2018.8341226
DO - 10.1109/APEC.2018.8341226
M3 - Conference contribution
AN - SCOPUS:85046969843
T3 - Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
SP - 1571
EP - 1576
BT - APEC 2018 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 33rd Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2018
Y2 - 4 March 2018 through 8 March 2018
ER -