A Resonant Switched-Capacitor LLC DCX in Data Center Applications

doi:10.1109/PEAS58692.2023.10394820

	A Resonant Switched-Capacitor LLC DCX in Data Center Applications
	Jiawei Liang; Haoyu Wang
	2023-11
会议录名称	2023 IEEE 2ND INTERNATIONAL POWER ELECTRONICS AND APPLICATION SYMPOSIUM (PEAS)
页码	676-680
发表状态	已发表
DOI	10.1109/PEAS58692.2023.10394820
摘要	In this paper, a novel resonant switched-capacitor LLC topology is proposed to serve as the dc transformer (DCX) in data center applications. The proposed DCX is formed by a 2:1 resonant switched-capacitor cell and an LLC converter. To achieve a 4n:1 voltage step-down ratio, only an n:1 turns ratio transformer is required. It presents good soft-charging and soft- switching performances to effectively mitigate charge distribution loss and switching loss. Furthermore, the voltage stresses of primary switches are only half of the input voltage, and the current stresses are also lower than that of conventional LLC converter. The operational principle of steady-state circuit and theoretical analysis are provided to highlight its advantages. To verify the proposed concept, a 300W-rated hardware prototype that converts 48 V to 12 V is designed and tested with 1MHz switching frequency. © 2023 IEEE.
会议录编者/会议主办者	China Power Supply Society (CPSS) ; IEEE Power Electronics Society (PELS)
关键词	dc transformer LLC soft switching switched-capacitor converter voltage regulator modules
会议名称	2nd IEEE International Power Electronics and Application Symposium, PEAS 2023
会议地点	Guangzhou, China
会议日期	10-13 Nov. 2023
URL	查看原文
收录类别	EI
语种	英语
出版者	Institute of Electrical and Electronics Engineers Inc.
EI入藏号	20240815584104
原始文献类型	Conference article (CA)
来源库	IEEE
文献类型	会议论文
条目标识符	https://kms.shanghaitech.edu.cn/handle/2MSLDSTB/354928
专题	信息科学与技术学院信息科学与技术学院_PI研究组_王浩宇组信息科学与技术学院_博士生
作者单位	School of Information Science and Technology, ShanghaiTech University, Shanghai, China
第一作者单位	信息科学与技术学院
第一作者的第一单位	信息科学与技术学院
推荐引用方式 GB/T 7714	Jiawei Liang,Haoyu Wang. A Resonant Switched-Capacitor LLC DCX in Data Center Applications[C]//China Power Supply Society (CPSS), IEEE Power Electronics Society (PELS):Institute of Electrical and Electronics Engineers Inc.,2023:676-680.