Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/22645
Title: Fast-scale bifurcation in single-stage PFC power supplies operating with DCM boost stage and CCM forward stage
Authors: Wu, X
Tse, CK 
Wong, SC 
Lu, J
Keywords: Bifurcation
dc-dc converter
Fast-scale instability
Power factor correction
Single-stage converter
Issue Date: 2006
Publisher: John Wiley & Sons
Source: International journal of circuit theory and applications, 2006, v. 34, no. 3, p. 341-355 How to cite?
Journal: International journal of circuit theory and applications 
Abstract: This paper describes the fast-scale bifurcation phenomena of a single-stage single-switch power-factor-correction (PFC) regulator comprising 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. Using 'exact' cycle-by-cycle computer simulations, the effects of various circuit parameters on fast-scale instabilities are studied. The results are qualitatively verified by experimental measurements. This work provides a clear picture of how the variation of certain practical parameters can render such a circuit fast-scale unstable.
URI: http://hdl.handle.net/10397/22645
ISSN: 0098-9886
EISSN: 1097-007X
DOI: 10.1002/cta.357
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