TY - GEN
T1 - Maximum efficiency point tracking based synchronous rectification for LLC converter
AU - Wei, Yuqi
AU - Mantooth, Alan
N1 - Publisher Copyright:
© 2021 IEEE.
PY - 2021/6/21
Y1 - 2021/6/21
N2 - Synchronous rectification (SR) is challenging for LLC resonant converter because of the difference between primary switches and secondary synchronous rectifier. Although numerous SR driving strategies have been proposed, they all have some disadvantages. A SR driving strategy is proposed based on the maximum efficiency tracking. The input current is sensed to find the maximum efficiency corresponded driving signals for SR. The proposed driving strategy has the following advantages: 1) it can applied to any LLC topologies; 2) the sampling circuit loss is small since the SR is normally used in low output voltage applications, where the input current is small; 3) the maximum efficiency operation for the converter can be ensured simultaneously. The operational principles, simulation and experiment verification are presented.
AB - Synchronous rectification (SR) is challenging for LLC resonant converter because of the difference between primary switches and secondary synchronous rectifier. Although numerous SR driving strategies have been proposed, they all have some disadvantages. A SR driving strategy is proposed based on the maximum efficiency tracking. The input current is sensed to find the maximum efficiency corresponded driving signals for SR. The proposed driving strategy has the following advantages: 1) it can applied to any LLC topologies; 2) the sampling circuit loss is small since the SR is normally used in low output voltage applications, where the input current is small; 3) the maximum efficiency operation for the converter can be ensured simultaneously. The operational principles, simulation and experiment verification are presented.
KW - LLC resonant converter
KW - Maximum efficiency tracking
KW - Synchronous rectification
UR - https://www.scopus.com/pages/publications/85114476784
U2 - 10.1109/ITEC51675.2021.9490100
DO - 10.1109/ITEC51675.2021.9490100
M3 - 会议稿件
AN - SCOPUS:85114476784
T3 - 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
SP - 1
EP - 6
BT - 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2021 IEEE Transportation Electrification Conference and Expo, ITEC 2021
Y2 - 21 June 2021 through 25 June 2021
ER -