Design considerations for VRM transient response based on the output impedance

被引：30

作者：

Yao, KW ^{[1
]}

Meng, Y ^{[1
]}

Xu, P ^{[1
]}

Lee, FC ^{[1
]}

机构：

[1] Virginia Polytech Inst & State Univ, Bradley Dept Elect & Comp Engn, Ctr Power Elect Syst, Blacksburg, VA 24061 USA

来源：

APEC 2002: SEVENTEENTH ANNUAL IEEE APPLIED POWER ELECTRONICS CONFERENCE AND EXPOSITION, VOLS 1 AND 23 | 2002年

关键词：

D O I：

10.1109/APEC.2002.989221

中图分类号：

TE [石油、天然气工业]; TK [能源与动力工程];

学科分类号：

0807 ; 0820 ;

摘要：

This paper discusses the transient response of voltage regulator modules (VRMs) based on the small-signal models. The concept of constant resistive output impedance design for the VRM is proposed, and its limitation in application is analyzed. The impact of the output filter and the feedback control bandwidth shows that there is an optimum design for the VRM to achieve fast transient response, small size and good efficiency. Simulations and experimental results prove the theoretical analysis.

引用

页码：14 / 20

页数：7

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