Modeling and Design of Paralleled Buck Converter System with Automatic Current Sharing Technique

Journal of South China University of Technology (Natural Science Edition) ›› 2006, Vol. 34 ›› Issue (4): 56-60,69.

• Power & Electrical Engineering • Previous Articles Next Articles

Modeling and Design of Paralleled Buck Converter System with Automatic Current Sharing Technique

Qiu Dong-yuan Zhang Bo Wei Cong-ying

College of Electric Power,South China Univ.of Tech.,Guangzhou 510640,Guangdong,China

Received:2005-06-17 Online:2006-04-25 Published:2006-04-25
Contact: 丘东元(1972-)，女，博士，副教授，主要从事电力电子技术研究. E-mail:epdyqiu@seut.edu.cn
About author:丘东元(1972-)，女，博士，副教授，主要从事电力电子技术研究.
Supported by:
广东省自然科学基金资助项目(04020012)

Abstract

Abstract:

A small-signal model of the paralleled Buck converter is established based on the theory of small-signal modeling.Then,the design process of an automatic current sharing control system,including the designs of the voltage loop and the current sharing loop,are analyzed and proposed.The established model is finally adopted to set up a prototype with two paralleled Buck moduli.By comparing the experimental results with or without the auto.matic curent sharing control,the corectness of the proposed design method is finally verified.

Key words: automatic curent sharing control, small-signal model, Buck converter, modeling, design

Qiu Dong-yuan Zhang Bo Wei Cong-ying. Modeling and Design of Paralleled Buck Converter System with Automatic Current Sharing Technique[J]. Journal of South China University of Technology (Natural Science Edition), 2006, 34(4): 56-60,69.

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Modeling and Design of Paralleled Buck Converter System with Automatic Current Sharing Technique

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