[1]欧阳长莲,章国宝,严仰光.新一代计算机电源开关变换器的建模分析[J].东南大学学报(自然科学版),2001,31(6):81-86.[doi:10.3969/j.issn.1001-0505.2001.06.020]
 Ouyang Changlian,Zhang Guobao,Yan Yangguang.Modeling Analysis of Switch Converter in the Future Computer Power Supply[J].Journal of Southeast University (Natural Science Edition),2001,31(6):81-86.[doi:10.3969/j.issn.1001-0505.2001.06.020]
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新一代计算机电源开关变换器的建模分析()
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《东南大学学报(自然科学版)》[ISSN:1001-0505/CN:32-1178/N]

卷:
31
期数:
2001年第6期
页码:
81-86
栏目:
电气工程
出版日期:
2001-11-20

文章信息/Info

Title:
Modeling Analysis of Switch Converter in the Future Computer Power Supply
作者:
欧阳长莲1 章国宝2 严仰光1
1 南京航空航天大学自动化学院,南京 210016; 2 东南大学自动化研究所,南京 210096
Author(s):
Ouyang Changlian1 Zhang Guobao2 Yan Yangguang1
1 College of Automation Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016, China; 2 Research Institute of Automation , Southeast University, Nanjing 210096, China)
关键词:
建模方法 同步整流器 连续工作状态 直流-直流变换器
Keywords:
modeling method synchronous rectifier continuous conduction mode DC-DC converter
分类号:
TM131.1;TM133
DOI:
10.3969/j.issn.1001-0505.2001.06.020
摘要:
介绍新一代计算机电源同步整流BUCK变换器工作在连续状态的建模分析,给出一种新的开关变换器的建模分析方法.该方法考虑了变换器的寄生元件,功率开关等效为理想开关与开通电阻的串联,理想开关由受控电流源和受控电压源替代,基于能量守恒原理确定开通电阻等效平均值,为了简化模型,建立了将平均寄生元件转移到电感之路中的映射规则,推导了同步整流BUCK变换器工作在连续状态的大信号平均模型、线性电路模型、DC和小信号电路模型,导出了开环传递函数,并进行了计算机仿真分析,结果令人满意.该建模分析方法的优点是考虑了变换器的寄生
Abstract:
This paper introduces modeling analysis of synchronous rectifier BUCK converter in the future computer power supply, which operates in continuous conduction mode (CCM). A new modeling method is given for including parasitic components of the converter. Power switch is equivalent to a series connection of an on-resistance and an ideal switch with is replaced by dependent current and voltage sources. Equivalent average values of on-resistance are determined based on the principle of energy conservation. In order to simplify the obtained models of the converter, a reflection rule is developed, with which averaged parasitic components are shifted to the inductor branch. Large-signal averaged, DC and small-signal circuit models of synchronous rectifier BUCK converter operating in continuous conduction mode are derived. The open-loop transfer functions are educed. It satisfies the simulated models. The advantages of the proposed method are that the operation quantity of the method is much smaller compared with state-space averaging method and the models include parasitic components of the converter. It is apparent and of clear physical significance, therefore, convenient for further analysis research.

参考文献/References:

[1] Zhou X,Zhang X,Liu J,et al.Investigation of candidate VRM topologies for future microprocessors.In:Proc IEEE APEC Conference Record,1998.145~150
[2] Arbetter B,Maksimovic.DC-DC converter with fast transient response and high efficiency for low-voltage microprocessor loads.In:Proc IEEE APEC Conference Record,1998.156~162
[3] Wang T,Zhou X,A low voltage high efficiency and high power density DC-DC converter.In:Proc IEEE PESC Conference Record,1997.240~245
[4] Zhou X,Donati M,Amoroso L,et al.Improved light-load efficiency for synchronous rectifier voltage regulator module.IEEE Transactions on Power Electronics,2000,15 (5):826~834
[5] Middlebrook R D,Cuk S.A general unified approach to modeling switching converter power stages.In:IEEE Power Electronics Specialists Conference Record,1976.18~34
[6] Lee Y S.A systematic and unified approach to modeling switches in switch-mode power supplies.IEEE Trans Ind Electron,1985 (IE-32):445~448
[7] Xu Jianping.An analytical technique for the analysis of switching DC-DC converters.IEEE International Symposium on Circuits and Systems,Singapore,1991(2):1212 ~1215
[8] Rim C T,Joung G B,Cho G H.Practical switch based state-space modeling of DC-DC converters with all parasitics.IEEE Transactions on,Power Electronics,1991(6):611~617
[9] Sun J,Bass R M.Modeling and practical design issues for average current control.In:Proc IEEE APEC Conference Record,1999.980~986

备注/Memo

备注/Memo:
作者简介:欧阳长莲,女,1965年生,博士研究生.
更新日期/Last Update: 2001-11-20