A novel phase shedding scheme for improved light load efficiency of Interleaved DC/DC converters
A novel phase shedding scheme for improved light load efficiency of Interleaved DC/DC converters
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一种新颖的切相方案，可提高交错式 DC/DC 转换器的轻负载效率
DOI：
10.1109/apec.2011.5744788
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发表时间：
2011
期刊：
影响因子：
--
通讯作者：
Chih
中科院分区：
文献类型：
--
作者：
Jen;Chung;Tsun;Chih
本文提出了一种新的交错并联DC/DC变换器减相方案，以提高轻载效率。所提出的减相架构基于增益调度方法来自动调整功率MOSFET的参数，例如导通电阻（Rds_on），以优化轻载效率并节省功率。在12 V输入、1.2V输出、40 A两相交错并联DC/DC同步降压变换器上验证了该方案，并给出了实验结果以验证理论分析。实验结果表明，采用该方案可以显著提高轻载效率.
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.