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Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/739

Title: Hopf-type intermediate-scale bifurcation in single-stage power-factor-correction power supplies
Authors: Dai, Dong
Li, Shengnan
Ma, Xikui
Tse, C. K. Michael
Subjects: Cascade connections
Computer simulation
Electric conductivity
Electric power factor correction
Issue Date: 2007
Publisher: IEEE
Citation: ISCAS 2007 : 2007 IEEE International Symposium on Circuits and Systems : New Orleans, Louisiana, May 27-30, 2007, proceedings, p. 797-800.
Abstract: This paper reports intermediate-scale instability in a single-stage power-factor-correction (PFC) power supply that employs a cascade configuration of a boost stage operating in discontinuous conduction mode (DCM) and a forward stage operating in continuous conduction mode (CCM). The two stages combine into a single stage by sharing one main switch and one control loop to achieve input PFC and tight output regulation. Main results are given by "exact" cycle-by-cycle circuit simulations. The intermediate-scale instability usually manifests itself as local oscillations within a line cycle. Based on the stability analysis of a buck converter operating in CCM, the underlying mechanism of such instability can be attributed to the Hopf bifurcation occurred in CCM forward stage. Finally, experimental results are presented for verification purposes.
Rights: © 2007 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.
This material is presented to ensure timely dissemination of scholarly and technical work. Copyright and all rights therein are retained by authors or by other copyright holders. All persons copying this information are expected to adhere to the terms and constraints invoked by each author's copyright. In most cases, these works may not be reposted without the explicit permission of the copyright holders.
Type: Conference Paper
URI: http://hdl.handle.net/10397/739
ISBN: 1424409217
Appears in Collections:EIE Conference Papers & Presentations

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