TY - GEN
T1 - A modeling based approach for the characteristic analysis of buck zero-voltage switching quasi-resonant converters
AU - Lin, Yi Cherng
AU - Liaw, Der-Cherng
PY - 2005/12/1
Y1 - 2005/12/1
N2 - In this paper, we propose a modeling based scheme to study the practical characteristics of Buck zero-voltage switching quasi-resonant converters (Buck ZVS-QRC's). Instead of assuming the unity power efficiency and/or having the ideal characteristics of all the circuit components in the most existing studies, a novel model taking the equivalent intrinsic resistance of each circuit component and the voltages of inductors into account is used to describe the steady-state operation of the converter. By using the developed technique, the governing equations of converter can be simplified. An iterative algorithm is then constructed for solving operating points. With the aid of the derived expressions for the circuit operating point, a parametric analysis of practical behavioral characteristics is also realized. Experimental study of a practical converter demonstrates the effectiveness of the proposed method.
AB - In this paper, we propose a modeling based scheme to study the practical characteristics of Buck zero-voltage switching quasi-resonant converters (Buck ZVS-QRC's). Instead of assuming the unity power efficiency and/or having the ideal characteristics of all the circuit components in the most existing studies, a novel model taking the equivalent intrinsic resistance of each circuit component and the voltages of inductors into account is used to describe the steady-state operation of the converter. By using the developed technique, the governing equations of converter can be simplified. An iterative algorithm is then constructed for solving operating points. With the aid of the derived expressions for the circuit operating point, a parametric analysis of practical behavioral characteristics is also realized. Experimental study of a practical converter demonstrates the effectiveness of the proposed method.
KW - Converter
KW - Quasi-resonant converter
KW - Zero-voltage switching
UR - http://www.scopus.com/inward/record.url?scp=33847406728&partnerID=8YFLogxK
U2 - 10.1109/PEDS.2005.1619672
DO - 10.1109/PEDS.2005.1619672
M3 - Conference contribution
AN - SCOPUS:33847406728
SN - 0780392965
SN - 9780780392960
T3 - Proceedings of the International Conference on Power Electronics and Drive Systems
SP - 123
EP - 128
BT - Proceedings of the International Conference on Power Electronics and Drive Systems
Y2 - 28 November 2005 through 1 December 2005
ER -