TY - GEN
T1 - A high step-down DC-DC converter based on switched-capacitor and two-phase buck
AU - Yu, Longyang
AU - Wang, Laili
AU - Zhu, Mengyu
AU - Yang, Chengzi
N1 - Publisher Copyright:
© 2019 IEEE.
PY - 2019/6
Y1 - 2019/6
N2 - A non-isolated high step-down voltage conversion ratio DC-DC topology is introduced in this paper. The proposed converter has a two-phase interleaved buck on its output side, in the meantime, having a switched-capacitor topology based on Dickson charge pump in its input side, the novel converter integrates two-stage converter based on switched-capacitor and two-phase interleaved buck, which makes its active switches reduced by half. Therefore, the novel converter combines advantages of switched-capacitor and two-phase interleaved buck, it has these features of high voltage gain, low voltage stress across these active switches and low output current ripple. It is very suitable for applications required high voltage gain and power density. A hardware prototype of the proposed converter with Vin =100V and Vo =12V has been built to verify its performance, the experimental results reach a good agreement with theoretical analysis, the peak efficiency of 60W prototype reaches 94.7%.
AB - A non-isolated high step-down voltage conversion ratio DC-DC topology is introduced in this paper. The proposed converter has a two-phase interleaved buck on its output side, in the meantime, having a switched-capacitor topology based on Dickson charge pump in its input side, the novel converter integrates two-stage converter based on switched-capacitor and two-phase interleaved buck, which makes its active switches reduced by half. Therefore, the novel converter combines advantages of switched-capacitor and two-phase interleaved buck, it has these features of high voltage gain, low voltage stress across these active switches and low output current ripple. It is very suitable for applications required high voltage gain and power density. A hardware prototype of the proposed converter with Vin =100V and Vo =12V has been built to verify its performance, the experimental results reach a good agreement with theoretical analysis, the peak efficiency of 60W prototype reaches 94.7%.
KW - High voltage gain
KW - Low voltage stress
KW - Switched-capacitor
KW - Two-phase interleaved buck
UR - https://www.scopus.com/pages/publications/85071915318
U2 - 10.1109/PEDG.2019.8807533
DO - 10.1109/PEDG.2019.8807533
M3 - 会议稿件
AN - SCOPUS:85071915318
T3 - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
SP - 110
EP - 114
BT - PEDG 2019 - 2019 IEEE 10th International Symposium on Power Electronics for Distributed Generation Systems
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 10th IEEE International Symposium on Power Electronics for Distributed Generation Systems, PEDG 2019
Y2 - 3 June 2019 through 6 June 2019
ER -