Low-frequency oscillation in digitally controlled DC-DC Buck converters

被引：16
|
作者：
Zhang Xiao-Tian [1 ]
Ma Xi-Kui [1 ]
Zhang Hao [1 ]
机构：
[1] Xi An Jiao Tong Univ, Sch Elect Engn, State Key Lab Elect Insulat & Power Equipment, Xian 710049, Peoples R China
来源：
ACTA PHYSICA SINICA | 2008年 / 57卷 / 10期
基金：
中国国家自然科学基金;
关键词：
low-frequency oscillation; digitally control; converter; z-domain model;
D O I：
10.7498/aps.57.6174
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
The z-domain model of digitally controlled Buck converter is derived by only considering the effect of sampler-and-holder. Based on the z-domain model, the cause of the low-frequency bifurcation is analyzed. The location and type of the bifurcation point when a system loses stability is predicted in terms of the system eigenvalues. Moreover, the frequency and the amplitude of the low-frequency oscillation, i. e., the wave equations, are deduced. These theoretical results are verified by PSpice simulations.
引用
收藏
页码：6174 / 6181
页数：8
相关论文
共 13 条
  • [1] Bifurcations in DC-DC switching converters:: Review of methods and applications
    EL Aroudi, A
    Debbat, M
    Giral, R
    Olivar, G
    Benadero, L
    Toribio, E
    [J]. INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2005, 15 (05): : 1549 - 1578
  • [2] Quasiperiodicity and chaos in the DC-DC Buck-Boost converter
    El Aroudi, A
    Benadero, L
    Toribio, E
    Machiche, S
    [J]. INTERNATIONAL JOURNAL OF BIFURCATION AND CHAOS, 2000, 10 (02): : 359 - 371
  • [3] IU HHC, 2003, IEEE T CIRCUITS-I, V5, P679
  • [4] Foreword - Special issue on digital control in tower electronics
    Leeb, SB
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2003, 18 (01) : 293 - 293
  • [5] Liu Jian, 2004, Proceedings of the CSEE, V24, P174
  • [6] Research of bifurcation behaviour and chaos control in DC-DC buck converter
    Luo, XS
    Wang, BH
    Chen, GR
    Quan, HJ
    Fang, JQ
    Zou, YL
    Jiang, PQ
    [J]. ACTA PHYSICA SINICA, 2003, 52 (01) : 12 - 17
  • [7] High-frequency digital PWM controller IC for DC-DC converters
    Patella, BJ
    Prodic, A
    Zirger, A
    Maksimovic, D
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2003, 18 (01) : 438 - 446
  • [8] Quantization resolution and limit cycling in digitally controlled PWM converters
    Peterchev, AV
    Sanders, SR
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2003, 18 (01) : 301 - 308
  • [9] Architecture and IC implementation of a digital VRM controller
    Peterchev, AV
    Xiao, JW
    Sanders, SR
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2003, 18 (01) : 356 - 364
  • [10] Bilinear discrete-time modeling for enhanced stability prediction and digital control design
    Rajasekaran, V
    Sun, J
    Heck, BS
    [J]. IEEE TRANSACTIONS ON POWER ELECTRONICS, 2003, 18 (01) : 381 - 389
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