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

Yao Wang; Jianping Xu; Guohua Zhou

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

Yao Wang

Jianping Xu

Guohua Zhou

Vol. 16, No. 5, pp. 1802-1812, Sep. 2016

10.6113/JPE.2016.16.5.1802

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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.

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Cite this article

[IEEE Style]

Y. Wang, J. Xu, G. Zhou, "A Cross Regulation Analysis for Single-Inductor Dual-Output CCM Buck Converters," Journal of Power Electronics, vol. 16, no. 5, pp. 1802-1812, 2016. DOI: 10.6113/JPE.2016.16.5.1802.

[ACM Style]

Yao Wang, Jianping Xu, and Guohua Zhou. 2016. A Cross Regulation Analysis for Single-Inductor Dual-Output CCM Buck Converters. Journal of Power Electronics, 16, 5, (2016), 1802-1812. DOI: 10.6113/JPE.2016.16.5.1802.