A Novel Phase Shedding Scheme for Improved Light Load Efficiency of Interleaved DC/DC Converters

被引：0

作者：

Su, Jen-Ta ^{[1
]}

Hung, Chung-Wen ^{[2
]}

Chang, Tsun-Hsi ^{[2
]}

Liu, Chih-Wen ^{[1
]}

机构：

[1] Natl Taiwan Univ, Dept Elect Engn, 1,Sec 4,Roosevelt Rd, Taipei 10617, Taiwan

[2] Natl Yunlin Univ Sci & Technol, Dept Elect Engn, Taipei 10764, Taiwan

来源：

2011 TWENTY-SIXTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION (APEC) | 2011年

关键词：

phase shedding; gain scheduling; light load efficiency; dc/dc converters;

D O I：

暂无

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：

In this paper, a novel phase shedding scheme for Interleaved DC/DC converters is proposed to improve the light load efficiency. The proposed phase shedding architecture is based upon gain scheduling method to automatically tune the parameters of Power MOSFETs such as the on resistance (Rds_on) for optimization in light load efficiency with power saving. The proposed scheme is verified on 12V input with 1.2 V output, 40 A 2-phases interleaved DC/DC synchronous buck converter and the experimental results are presented to demonstrate the theoretical analysis. The experimental results show that using the proposed scheme significant improvement in light load efficiency.

引用

页码：1482 / 1487

页数：6

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