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Title: Coexisting fast-scale and slow-scale instability in current-mode controlled DC/DC converters : analysis, simulation and experimental results
Authors: Chen, Y
Tse, CKM 
Qiu, S
Lindenmüller, L
Schwarz, W
Keywords: Bifurcation
Current-mode control
Dc/dc converters
Fast-scale instability
Slow-scale instability
Issue Date: Nov-2008
Publisher: Institute of Electrical and Electronics Engineers
Source: IEEE transactions on circuits and systems. I, Regular papers, Nov. 2008, v. 55, no. 10, p. 3335-3348 How to cite?
Journal: IEEE transactions on circuits and systems. I, Regular papers 
Abstract: This paper investigates the coexisting fast-scale and slow-scale bifurcations in simple dc/dc converters under peak current-mode control operating in continuous conduction mode. Our focus is the boost converter as it is a representative form of dc/dc converter requiring current-mode control. Effects of varying the input voltage and some chosen parameters on the qualitative behavior of the system are studied in detail. Analysis based on a nonlinear simplified discrete-time model, which takes into account the effects of parasitics, is performed to investigate the coexistence of fast-scale and slow-scale bifurcations, and to identify the different types of bifurcation. Boundaries of stable region, slow-scale bifurcation region, fast-scale bifurcation region, coexisting fast and slow-scale bifurcation region are identified. Experimental measurements of the boost converter are provided for verification of the analytical results.
ISSN: 1549-8328
EISSN: 1558-0806
DOI: 10.1109/TCSI.2008.923282
Rights: © 2008 IEEE. Personal use of this material is permitted. However, permission to reprint/republish this material for advertising or promotional purposes or for creating new collective works for resale or redistribution to servers or lists, or to reuse any copyrighted component of this work in other works must be obtained from the IEEE.
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