Current-sharing characteristic of converter composed of LLC with series-parallel transformer and interleaved Buck

被引：0
|
作者：
Liu X. [1 ]
Zheng X.-J. [1 ]
Hou Q.-H. [1 ]
Shi J.-J. [1 ]
机构：
[1] College of Electrical Engineering, Zhejiang University, Hangzhou
来源：
Zhejiang Daxue Xuebao (Gongxue Ban)/Journal of Zhejiang University (Engineering Science) | 2018年 / 52卷 / 04期
关键词：
Buck; Current auto-balance; LLC; Series-parallel transformer;
D O I：
10.3785/j.issn.1008-973X.2018.04.026
中图分类号：
学科分类号：
摘要：
A high power density and high power DC-DC converter topology was analyzed, which is a two-stage structure and suitable for high voltage and wide voltage input, low voltage and high current output application. The first stage of the converter is LLC resonant converter with series-parallel transformers working in fixed-frequency and open-loop mode, and the later stage is the interleaved Buck working in closed-loop mode. The three operating modes and the current sharing characteristics for the converter were analyzed under the conditions of different magnetizing inductance, turns ratio and duty cycle. The simulation and experiment show that the converter topology has good current auto-balance characteristics and is suitable for high power density and high power DC-DC power conversion application. © 2018, Zhejiang University Press. All right reserved.
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页码：806 / 818
页数：12
相关论文
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