DocumentCode :
3333001
Title :
Analysis of quasi-resonant converters by using finite element method
Author :
Chan, C.C. ; Chau, K.T.
Author_Institution :
Dept. of Electr. & Electron. Eng., Hong Kong Univ., Hong Kong
fYear :
1991
fDate :
28 Oct-1 Nov 1991
Firstpage :
354
Abstract :
A computer-aided analysis of zero-current switching and zero-voltage switching quasi-resonant converters is accomplished by using the finite element method. Adopting the weighted residual approach with Galerkin´s procedures the state equations are replaced by recurrence formulas, and the solution is unconditionally stable. The recurrence formulas are so simple and efficient that they can be easily implemented in a PC. By successive calculation of these formulas and taking into account the parasitic resistances of the converter circuits, an accurate analysis of the transient and steady-state characteristics can be obtained. The dangerous peaks of the transient waveforms are pointed out, which are influenced by the mode of operation and the load value
Keywords :
finite element analysis; power convertors; Galerkin´s procedures; computer-aided analysis; finite element method; parasitic resistances; quasi-resonant converters; recurrence formulas; steady-state characteristics; transient waveforms; weighted residual approach; zero-current switching; zero-voltage switching; Circuit analysis; Finite element methods; Resonance; Steady-state; Switches; Switching converters; Time domain analysis; Transient analysis; Voltage; Zero current switching;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on
Conference_Location :
Kobe
Print_ISBN :
0-87942-688-8
Type :
conf
DOI :
10.1109/IECON.1991.239358
Filename :
239358
Link To Document :
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