Input Voltage Sharing Control for Input-Series-Output-Parallel DC-DC Converters without Input Voltage Sensors

Zhiqiang Guo; Deshang Sha; Xiaozhong Liao

Input Voltage Sharing Control for Input-Series-Output-Parallel DC-DC Converters without Input Voltage Sensors

Zhiqiang Guo

Deshang Sha

Xiaozhong Liao

Vol. 12, No. 1, pp. 83-87, Jan. 2012

10.6113/JPE.2012.12.1.83

DC/DC converters

Input-series-output-parallel

Input voltage sharing

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Abstract

Input-series-output-parallel (ISOP) modular converters consisting of multiple modular DC/DC converters can enable low voltage rating switches for use in high voltage input applications. In this paper, an input voltage sharing control strategy for input-series-output-parallel (ISOP) full-bridge (FB) DC/DC converters is proposed. By sensing the difference in the input current of two modules, the system can achieve input voltage sharing for DC-DC modules. The effectiveness of the proposed control strategy is verified by simulation and experimental results obtained with a 200w-50kHz prototype.

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Cite this article

[IEEE Style]

Z. Guo, D. Sha, X. Liao, "Input Voltage Sharing Control for Input-Series-Output-Parallel DC-DC Converters without Input Voltage Sensors," Journal of Power Electronics, vol. 12, no. 1, pp. 83-87, 2012. DOI: 10.6113/JPE.2012.12.1.83.

[ACM Style]

Zhiqiang Guo, Deshang Sha, and Xiaozhong Liao. 2012. Input Voltage Sharing Control for Input-Series-Output-Parallel DC-DC Converters without Input Voltage Sensors. Journal of Power Electronics, 12, 1, (2012), 83-87. DOI: 10.6113/JPE.2012.12.1.83.