Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/23418
Title: A model for stability study of PFC power supplies
Authors: Chu, G
Tse, CK 
Wong, SC 
Issue Date: 2007
Source: PESC Record - IEEE Annual Power Electronics Specialists Conference, 2007, 4342181, p. 1298-1303 How to cite?
Abstract: Typically a power-factor-correction power supply consists of two stages, one responsible for power factor correction and the other for voltage regulation. In this paper, we propose to use a constant power sink to represent the voltage regulating stage, resulting in an analytically tractable model that is able to predict the period-doubled oscillations at line frequency which are not detectable by other conventional models. Using a generalized averaging approach, we investigate the lowfrequency dynamics and derive closed-form stability conditions which accurately locate the stability boundaries on selected parameter planes. The model can be conveniently used to evaluate the performance of power-factor-correction power supplies, such as harmonic distortion and power factor. Experimental results are presented to verify the model.
Description: PESC 07 - IEEE 38th Annual Power Electronics Specialists Conference, Orlando, FL, 17-21 June 2007
URI: http://hdl.handle.net/10397/23418
ISBN: 1424406552
9781424406555
ISSN: 0275-9306
DOI: 10.1109/PESC.2007.4342181
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