48-V Input DC-DC High Step-Down Converter in GaN-Based Design

被引：6
作者：
Folmer, Szymon [1 ]
Kosakowski, Mateusz [1 ]
Stala, Robert [1 ]
机构：
[1] AGH Univ Sci & Technol, Dept Power Elect & Energy Control Syst, PL-30059 Krakow, Poland
来源：
IEEE ACCESS | 2022年 / 10卷
关键词：
Switches; Capacitors; Voltage; Buck converters; Zero voltage switching; Transistors; Inductors; DC-DC power converters; High-voltage technqiues; Switched capacitor circuits; DC-DC converters; high voltage step-down gain converter; switched-capacitor circuit; SWITCHED-CAPACITOR; VOLTAGE;
D O I：
10.1109/ACCESS.2022.3218309
中图分类号：
TP [自动化技术、计算机技术];
学科分类号：
0812 ;
摘要：
This paper presents a novel high step-down DC-DC converter based on a switched-capacitor resonant topology. It is presented in a 48/8 V version, which was verified by simulations and experiments. The most notable features specific to this converter are an almost non-iductive design and relatively low voltage stress across switching devices. The proposed topology allows for zero-current-switching (ZCS) and zero-voltage-switching (ZVS). Experimental tests confirm that ZVS operation brings a significant increase in the efficiency of the proposed device. Taking into account all the advantages of the suggested converter, it can be concluded that this device is suitable for any application where a high step-down voltage conversion is required. In a prospective application, the proposed converter can be utilized as a part of the power supply unit for data centers.
引用
收藏
页码：115958 / 115973
页数：16
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