TY - GEN
T1 - Impact of transformer stray capacitance on the conduction loss in a GaN-based LLC resonant converter
AU - Wang, Naizeng
AU - Jia, Haiyang
AU - Tian, Mofan
AU - Li, Zhenwei
AU - Xu, Guangzhao
AU - Yang, Xu
N1 - Publisher Copyright:
© 2017 IEEE.
PY - 2017/7/25
Y1 - 2017/7/25
N2 - Conduction loss, which is greatly affected by transformer stray capacitance, has a huge influence on the efficiency of LLC resonant converters. The reason is that different transformer stray capacitance means different winding charge or discharge during the dead time, and then the magnetizing current and the dead time are changed accordingly. In order to investigate the impact of transformer stray capacitance on device conduction loss in LLC resonant converters, this passage is arranged as follows. Firstly, the transformer stray capacitance model is established and several methods of calculating the transformer stray capacitance are introduced. Next, the relationship between transformer stray capacitance and device conduction loss in LLC resonant converters is derived. Finally, transformers with different stray capacitances are applied in a 1.1MHz 400V-12V 200W GaN-based LLC resonant converter. The loss analysis shows that lower transformer stray capacitance contributes to smaller dead time and higher efficiency.
AB - Conduction loss, which is greatly affected by transformer stray capacitance, has a huge influence on the efficiency of LLC resonant converters. The reason is that different transformer stray capacitance means different winding charge or discharge during the dead time, and then the magnetizing current and the dead time are changed accordingly. In order to investigate the impact of transformer stray capacitance on device conduction loss in LLC resonant converters, this passage is arranged as follows. Firstly, the transformer stray capacitance model is established and several methods of calculating the transformer stray capacitance are introduced. Next, the relationship between transformer stray capacitance and device conduction loss in LLC resonant converters is derived. Finally, transformers with different stray capacitances are applied in a 1.1MHz 400V-12V 200W GaN-based LLC resonant converter. The loss analysis shows that lower transformer stray capacitance contributes to smaller dead time and higher efficiency.
KW - conduction loss
KW - dead time
KW - efficiency
KW - LLC resonant converter
KW - transformer stray capacitance
UR - https://www.scopus.com/pages/publications/85034112554
U2 - 10.1109/IFEEC.2017.7992237
DO - 10.1109/IFEEC.2017.7992237
M3 - 会议稿件
AN - SCOPUS:85034112554
T3 - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
SP - 1334
EP - 1338
BT - 2017 IEEE 3rd International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 3rd IEEE International Future Energy Electronics Conference and ECCE Asia, IFEEC - ECCE Asia 2017
Y2 - 3 June 2017 through 7 June 2017
ER -