TY - GEN
T1 - Stability Analysis of Complete Two-Stage Power-Factor-Correction Power Supplies
AU - Dranga, Octavian
AU - Tse, Chi K.
AU - Wong, Siu Chung
PY - 2005/9
Y1 - 2005/9
N2 - Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.
AB - Power-factor-correction (PFC) power supplies are required to provide high input power factor and tight output voltage regulation. The usual configuration takes a two-stage cascade structure, consisting of a PFC preregulator and a dc/dc converter. Previous studies of the dynamical behaviour mainly focused on the boost PFC preregulator, assuming that it is being terminated by a resistive load. However, in practice, as the PFC preregulator is terminated by a dc/dc converter whose characteristics differ from resistive load's, the assumption of resistive load termination gives rather inaccurate information about the stability of the system. In this paper we study the complete two-stage PFC power supply and show that the interaction between the PFC stage and the dc/dc converter stage plays an important role in determining the stability of the system.
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UR - https://www.scopus.com/record/pubmetrics.uri?eid=2-s2.0-33749080143&origin=recordpage
U2 - 10.1109/ECCTD.2005.1522939
DO - 10.1109/ECCTD.2005.1522939
M3 - RGC 32 - Refereed conference paper (with host publication)
SN - 0780390660
SN - 9780780390669
VL - 1
T3 - Proceedings of the 2005 European Conference on Circuit Theory and Design
BT - Proceedings of the 2005 European Conference on Circuit Theory and Design
T2 - 2005 European Conference on Circuit Theory and Design
Y2 - 28 August 2005 through 2 September 2005
ER -