High-efficiency and wide-bandwidth performance obtainable from a two-input buck converter

被引:68
作者
Sebastian, J [1 ]
Villegas, PJ [1 ]
Nuno, F [1 ]
Hernando, MM [1 ]
机构
[1] Univ Oviedo, Dept Ingn Elect Elect Computadores & Systemas, Gijon 33204, Spain
关键词
multiple output dc-dc converters; power factor correction; switching postregulators;
D O I
10.1109/63.704143
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
A study of the two-input postregulators is carried out in this paper, In these postregulators, only a part of the total power undergoes a switching conversion process, whereas the remainder of the power comes up to the load directly, with no power conversion process. Due to this fact, very high efficiency is achieved. Moreover, the stress in the semiconductors and the filter size are both much lower than in standard postregulators. Two-input postregulators require two-output main converters. However, many converter topologies can be easily adapted to supply two-output voltages with no efficiency penalty, Two-input postregulators can he used in many power converters, Multiple-output de-to-de converters and ac-to-dc power factor correctors are two good examples.
引用
收藏
页码:706 / 717
页数:12
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