Small-signal analysis and control design of asymmetrical half-bridge DC-DC converters

被引：60

作者：

Choi, B ^{[1
]}

Lim, W

Bang, S

Choi, S

机构：

[1] Kyungpook Natl Univ, Sch Elect Engn & Comp Sci, Taegu 702701, South Korea

[2] Hanyang Univ, Sch Elect & Comp Engn, Seoul 133791, South Korea

来源：

IEEE TRANSACTIONS ON INDUSTRIAL ELECTRONICS | 2006年 / 53卷 / 02期

关键词：

asymmetrical half-bridge (ASHB) converter; feedback compensation design; small-signal modeling and dynamic analysis; voltage-mode control;

D O I：

10.1109/TIE.2006.870715

中图分类号：

TP [自动化技术、计算机技术];

学科分类号：

0812 ;

摘要：

This paper presents the small-signal modeling, dynamic analysis, and control design of the asymmetrical half-bridge dc-dc converter that employs a clamp capacitor and a magnetizing inductor to accommodate pulsewidth-modulated operation V with asymmetrical duty ratios. The circuit averaging technique is applied to extract the small-signal dynamics of the power stage, and a graphical loop-gain method is used to design the feedback compensation and analyze the closed-loop performance of the converter. The distinctive power-stage dynamics of the converter are addressed and design guidelines for voltage feedback compensation are established. The results of the control design and closed-loop analysis are substantiated by experiments using an experimental converter.

引用

页码：511 / 520

页数：10

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