Browse > Article
http://dx.doi.org/10.6113/JPE.2016.16.5.1802

A Cross Regulation Analysis for Single-Inductor Dual-Output CCM Buck Converters  

Wang, Yao (School of Electrical and Information Engineering, Southwest University for Nationalities)
Xu, Jianping (School of Electrical Engineering, Southwest Jiaotong University)
Zhou, Guohua (School of Electrical Engineering, Southwest Jiaotong University)
Publication Information
Journal of Power Electronics / v.16, no.5, 2016 , pp. 1802-1812 More about this Journal
Abstract
Cross regulation is a key technical issue of single-inductor multiple-output (SIMO) DC-DC converters. This paper investigates the cross regulation in single-inductor dual-output (SIDO) Buck converters with continuous conduction mode (CCM) operation. The expressions of the DC voltage gain, control to the output transfer function, cross regulation transfer function, cross coupled transfer function and impedance transfer function of the converter are presented by the time averaging equivalent circuit approach. A small signal model of a SIDO CCM Buck converter is built to analyze this cross regulation. The laws of cross regulation with respect to various load conditions are investigated. Simulation and experiment results verify the theoretical analysis. This study will be helpful for converter design to reduce the cross regulation. In addition, a control strategy to reduce cross regulation is performed.
Keywords
CCM buck converter; Cross regulation; SIDO; Small signal model;
Citations & Related Records
연도 인용수 순위
  • Reference
1 D. Kwon and G. A. Rincn-Mora, "Single-inductor multiple-output switching DC-DC converters," IEEE Trans. Circuits Syst. II, Exp. Briefs, Vol. 56, No. 8, pp. 614-618, Aug. 2009.   DOI
2 H. P. Le, C. S. Chae, K. C. Lee, S. W. Wang, and G. H. Cho, "A single-inductor switching DC-DC converter with five output and ordered power-distributive control," IEEE J. Solid-State Circuits, Vol. 42, No. 12, pp. 2706-2714, Dec. 2007.   DOI
3 D. Trevisan, P. Mattavelli, and P. Tenti, "Digital control of single-inductor multiple-output step-down DC-DC converters in CCM," IEEE Trans. Ind. Electron., Vol. 55, No. 9, pp. 3476-3483, Sep. 2008.   DOI
4 K. Y. Lin, C. S. Huang, D. Chen, and K. H. Liu, "Modeling and design of feedback loops for a voltage-mode single-inductor dual-output buck converter," in IEEE Power Electronics Specialists Conference (PESC), pp. 3389-3395, Jun. 2008.
5 P. Patra, A. Patra, and N. Misra, "A single-inductor multiple-output switcher with simultaneous buck, boost, and inverted outputs," IEEE Trans. Power Electron., Vol. 27, No. 4, pp. 1936-1951, Apr. 2012.   DOI
6 D. S. Ma, W. H. Ki, C. Y. Tsui, and P. K. T. Mok, "Single inductor multiple output switching converters with time multiplexing control in discontinuous conduction mode," IEEE J. Solid-State Circuits, Vol. 38, No. 1, pp. 89-100, Jan. 2003.   DOI
7 X. S. Liu, J. P. Xu, J. P. Wang, and Q. B. Mu, "A single-inductor dual-output Buck converter with pulse-train control," in the 2nd International Symposium on Power Electronics for Distributed Generation Systems (PEDG), pp. 449-452, Jun. 2010.
8 D. S. Ma, W. H. Ki, and C. Y. Tsui, "A pseude-CCM/DCM SIMO switching converter with freewheel switching," IEEE J. Solid-State Circuits, Vol. 38, No. 6, pp. 1007-1014, Jun. 2003.   DOI
9 D. S. Ma and W. H. Ki, "Fast-transient PCCM switching converter with freewheel switching control," IEEE Trans. Circuits Syst. II, Exp. Briefs, Vol. 54, No. 9, pp. 825-829, Sep. 2007.   DOI
10 Y. Zhang, R. Bondade, D. S. Ma, and S. Abedinpour, "An integrated SIDO Boost power converter with adaptive freewheel switching technique," in IEEE Energy Conversion Congress and Exposition (ECCE), pp. 3516-3522, Sep. 2010.
11 W. W. Xu, Y. Li, Z. L. Hong, and D. Killat, "A dual-mode single-inductor dual-output switching converter with small ripple," IEEE Trans. Power Electron., Vol. 25, No. 3, pp. 614-623, Mar. 2010.   DOI
12 X. C. Jing, P. K. T. Mok, and M. C. Lee, "A wide load-range constant-charge-auto-hopping control single inductor dual output Boost regulator with minimized cross-regulation," IEEE J. Solid-State Circuits, Vol. 46, No. 10, pp. 2530-2362, Oct. 2011.   DOI
13 Y. H. Lee, T. C. Huang, Y. Y. Yang, W. S. Chou, K. H. Chen, C. C. Huang, and Y. H. Lin, "Minimized transient and steady-state cross regulation in 55nm CM0S single-inductor dual-output (SIDO) step-down DC-DC converter," IEEE J. Solid-State Circuits, Vol. 46, No. 11, pp. 2488-2499, Nov. 2011.   DOI
14 M. H. Huang and K. H. Chen, "Single-inductor multi-output (SIMO) DC-DC converters with high light-load efficiency and minimized cross-regulation for portable devices," IEEE J. Solid-State Circuits, Vol. 44, No. 4, pp. 1099-1111, Apr. 2009.   DOI
15 Z. H. Shen, X. G. Chang, W. W. Wang, and H. Ming, "Predictive digital current control of single-inductor multiple-output converters in CCM with low cross regulation," IEEE Trans. Power Electron., Vol. 27, No. 4, pp. 1917-1925, Apr. 2012.   DOI
16 C. S. Huang, D. Chen, C. J. Chen, and K. H. Liu, "Mix-voltage conversion for single-inductor dual-output buck converters," IEEE Trans. Power Electron., Vol. 25, No. 8, pp. 2106-2114, Aug. 2010.   DOI
17 P. Patra, J. Ghosh, and A. Patra, "Control scheme for reduced cross regulation in single-inductor multiple-output DC-DC converters," IEEE Trans. Ind. Electron., Vol. 60, No. 11, pp. 5095-5104, Nov. 2013.   DOI
18 J. D. Dasika, B. Bahrani, M. Saeedifard, A. Karimi, and A. Rufer, "Multivariable control of single-inductor dual-output Buck converters," IEEE Trans. Power Electron., Vol. 29, No. 4, pp. 2061-2070, Apr. 2014.   DOI
19 R. W. Erickson, Fundamentals of power electronics, New York Chapman & Hall, 1997.