Showing papers by "Jean-Christophe Crebier published in 2000"

Comparison between current-driven resonant converters used for single-stage isolated power-factor correction

Abstract: The aim of this paper is to analyze the power factor correction capability of isolated current-source resonant converter topologies with two energy storage elements, which takes advantage of the leakage inductance of the HF transformer. These converter topologies are studied and modeled. Computer simulation results are also given. Thanks to its interesting characteristics, a converter topology is chosen and a converter prototype is built in order to validate theoretical study. Using this converter topology, a very good power factor is achieved.

PSPICE-compatible electrical equivalent circuit for busbars

Abstract: The paper shows that it is possible to provide a PSPICE-compatible electrical equivalent scheme to represent the electrical behaviour of busbars. First a modeling method is proposed. Then it is shown how to get the equivalent circuit. This method is applied to an industrial busbar, which can be represented with a simple PSPICE macro-component. Experimental validation is given in time and frequency domain.

Frequency domain analysis and evaluation of differential mode input current for three-phase DCM boost rectifiers with different control strategies

Abstract: By using frequency domain analysis, it is possible to predict the low and high frequency harmonics of the differential mode input current of three-phase DCM boost rectifiers. This analysis is applied to three different modulation strategies, which are the constant duty-cycle control, the harmonic injection method and the variable switching frequency control. The results can be used to design the differential mode EMI input filter and to observe the PFC capabilities of DCM rectifiers. The theoretical approach is validated by time domain simulation and practical results.