A Soft-Switching High Step-Down Regulated DC-DC Converter: Topology Construction and Control Method

被引:0
作者
Guan, Yueshi [1 ]
Li, Xiang [1 ]
Yao, Tingting [2 ]
Yang, Wei [1 ]
Wang, Yijie [1 ]
Wang, Wei [1 ]
Xu, Dianguo [1 ]
机构
[1] Harbin Inst Technol, Sch Elect Engn & Automat, Harbin 150001, Peoples R China
[2] Northeast Forestry Univ, Coll Comp & Control Engn, Harbin 150001, Peoples R China
基金
中国国家自然科学基金;
关键词
Voltage control; Switches; Computer architecture; Microprocessors; Control systems; Capacitors; Power system measurements; Density measurement; Zero voltage switching; Inductors; Hybrid switched-capacitor converter; phase-shift control; voltage regulation; zero-voltage switching;
D O I
10.1109/TPEL.2024.3510566
中图分类号
TM [电工技术]; TN [电子技术、通信技术];
学科分类号
0808 ; 0809 ;
摘要
Resonant switched-capacitor converters have been widely studied and applied with the ability of high efficiency and power density, which well meets the requirements of data center power supply systems. However, due to its operation in DC transformer (DCX) mode, it does not have the ability to regulate voltage, which limits its application in certain situations and makes it difficult to meet the continuously increasing demand for data center applications. This article proposes a soft-switching high voltage step-down ratio hybrid switched-capacitor converter with voltage regulation capability and their corresponding phase-shift voltage regulation method. The voltage regulation principle and soft switching characteristics are analyzed in detail through mathematical derivation. In order to verify the theoretical analysis, an experimental prototype is built. The prototype can achieve 12 V output voltage under 40-60 V input voltage and the power density achieves 1987 W/in(3) with 98.4% peak efficiency.
引用
收藏
页码:4952 / 4968
页数:17
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