TY - GEN
T1 - A 8:1 Multi-Resonant Switched-Capacitor Converter
AU - Yan, Yuxin
AU - Fu, Yu
AU - Zhao, Yucheng
AU - Li, Shouxiang
N1 - Publisher Copyright:
© 2025 IEEE.
PY - 2025
Y1 - 2025
N2 - To satisfy the demands of the two-stage power distribution architectures in 48V data centers, this paper presents a multi-resonant switched-capacitor converter. This converter efficiently suppresses voltage fluctuations of the 48V data center bus, accomplishes soft capacitor charging, and guarantees high efficiency under low-voltage, high-current scenarios. The resonant frequency of the topology, the equilibrium voltage distribution across capacitors, and the phase-plane behavior are analyzed. The circuit operation, analysis, and experimental results from a 48 V-to-6 V laboratory prototype is presented, achieving a peak efficiency of 98.86% and a full-load efficiency 96.22%. The experimental results demonstrate the effectiveness of the proposed technology.
AB - To satisfy the demands of the two-stage power distribution architectures in 48V data centers, this paper presents a multi-resonant switched-capacitor converter. This converter efficiently suppresses voltage fluctuations of the 48V data center bus, accomplishes soft capacitor charging, and guarantees high efficiency under low-voltage, high-current scenarios. The resonant frequency of the topology, the equilibrium voltage distribution across capacitors, and the phase-plane behavior are analyzed. The circuit operation, analysis, and experimental results from a 48 V-to-6 V laboratory prototype is presented, achieving a peak efficiency of 98.86% and a full-load efficiency 96.22%. The experimental results demonstrate the effectiveness of the proposed technology.
KW - Data center
KW - state plane analysis
KW - switched-capacitor converter
UR - https://www.scopus.com/pages/publications/105019961683
U2 - 10.1109/WiPDA-Asia63772.2025.11184048
DO - 10.1109/WiPDA-Asia63772.2025.11184048
M3 - Conference contribution
AN - SCOPUS:105019961683
T3 - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
BT - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 2025 IEEE Workshop on Wide Bandgap Power Devices and Applications in Asia, WiPDA Asia 2025
Y2 - 15 August 2025 through 17 August 2025
ER -