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.
Original language | English |
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Pages (from-to) | 341-355 |
Number of pages | 15 |
Journal | International Journal of Circuit Theory and Applications |
Volume | 34 |
Issue number | 3 |
DOIs | |
Publication status | Published - 1 May 2006 |
Keywords
- Bifurcation
- dc-dc converter
- Fast-scale instability
- Power factor correction
- Single-stage converter
ASJC Scopus subject areas
- Electrical and Electronic Engineering