TY - GEN
T1 - A Hybrid Wide-Range Step-Up DC-DC Converter
AU - Wei, Qiushuang
AU - Fu, Yu
AU - Wang, Yuzhe
AU - Li, Shouxiang
N1 - Publisher Copyright:
© 2023 IEEE.
PY - 2023
Y1 - 2023
N2 - This paper proposes a hybrid wide-range step-up DC-DC converter consisting of Ladder switched-capacitor (SC) structure, an inductor, and a coupled inductor (CL). In contrast to the traditional Ladder switched-capacitor converter (SCC), the proposed hybrid converter exhibits an expansive voltage gain range and superior step-up gain, which is advantageous for photovoltaic applications. Moreover, the inherent current spike problem prevalent in the traditional Ladder SCC is tackled. The working principle, voltage gain, component stress, and boundary condition are analyzed comprehensively. Furthermore, a comparison with other converters proves the superiority of the proposed converter. To substantiate its performance and utility, a 200W prototype operating with the input range of 28V-91V and delivering an output of 400V was designed, constructed, and validated.
AB - This paper proposes a hybrid wide-range step-up DC-DC converter consisting of Ladder switched-capacitor (SC) structure, an inductor, and a coupled inductor (CL). In contrast to the traditional Ladder switched-capacitor converter (SCC), the proposed hybrid converter exhibits an expansive voltage gain range and superior step-up gain, which is advantageous for photovoltaic applications. Moreover, the inherent current spike problem prevalent in the traditional Ladder SCC is tackled. The working principle, voltage gain, component stress, and boundary condition are analyzed comprehensively. Furthermore, a comparison with other converters proves the superiority of the proposed converter. To substantiate its performance and utility, a 200W prototype operating with the input range of 28V-91V and delivering an output of 400V was designed, constructed, and validated.
KW - DC-DC converter
KW - coupled inductor
KW - switched-capacitor
KW - wide gain range
UR - http://www.scopus.com/inward/record.url?scp=85187243892&partnerID=8YFLogxK
U2 - 10.1109/PEAS58692.2023.10395766
DO - 10.1109/PEAS58692.2023.10395766
M3 - Conference contribution
AN - SCOPUS:85187243892
T3 - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
SP - 19
EP - 23
BT - PEAS 2023 - 2023 IEEE 2nd International Power Electronics and Application Symposium, Conference Proceedings
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2nd IEEE International Power Electronics and Application Symposium, PEAS 2023
Y2 - 10 November 2023 through 13 November 2023
ER -
