A High Performance Dual Output DC-DC Converter Combined the Phase Shift Full Bridge and LLC Resonant Half Bridge with the Shared Lagging Leg

被引：21

作者：

Chen, Yu ^{[1
]}

Pei, Xuejun ^{[1
]}

Peng, Li ^{[1
]}

Kang, Yong ^{[1
]}

机构：

[1] Huazhong Univ Sci & Technol, Coll Elect & Elect Engn, Wuhan 430074, Peoples R China

来源：

2010 TWENTY-FIFTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2010年

关键词：

D O I：

10.1109/APEC.2010.5433418

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 new dual output dc-dc converter is proposed in this paper. The first output works as a conventional full bridge converter; by connecting a LLC resonant tank to the lagging leg, a half bridge resonant converter is structured, and the second output is obtained. The first output is regulated by the phase shift and the second output by the switching frequency. Both of the outputs are fully regulated and independent. The narrow frequency variation of the LLC part makes the magnetic components easy to optimize. The ZVS of the leading leg is easy to achieve by the phase shift operation, the ZVS range of the lagging leg is extended down to empty load by the shared structure. Moreover, compared to the conventional full bridge phase shift converter, the shared lagging leg offers a loose dead-time limitation. Therefore the proposed converter is low cost, high reliability, high efficiency and high performance. A 300V input, 36V/10A, 24V/10A outputs prototype is build to verify the design.

引用

页码：1435 / 1440

页数：6

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