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Analysis and Design of a Passive Lossless Snubber in the Two-Inductor Boost Converter with a Variable Input Voltage

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Open access
Authors
Li, Q.
Wolfs, Peter
Date
2005
Type
Conference Paper

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Citation
Li, Q. and Wolfs, Peter. 2005. Analysis and Design of a Passive Lossless Snubber in the Two-Inductor Boost Converter with a Variable Input Voltage, in Negnvitsky, M. (ed), Australasian Universities Power Engineering Conference AUPEC 2005, Sep 25 2005, pp. 521-526. Hobart, Tasmania: University of Tasmania.
Source Title
Australasian Universities Power Engineering Conference
Source Conference
Australasian Universities Power Engineering Conference AUPEC 2005
ISBN
Faculty
Department of Electrical and Computer Engineering
School of Engineering
Faculty of Science and Engineering
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Abstract

This paper offers a detailed analysis of the non-dissipative snubbers for the hard-switched two-inductor boost converter fed from a sinusoidally modulated two-phase synchronous buck converter. The state analyses and the theoretical waveforms are provided for the three active operation modes of the snubber circuit. The set of border conditions in terms of the buck stage duty ratio for each operation mode is explicitly established. The experimental waveforms are also provided to validate the theoretical analysis.