It is shown that the common series resonant power converter is subject to a low frequency oscillation that can lead to the loss of cyclic stability. This oscillation is caused by a low frequency resonant circuit formed by the normal L and C components in series with the magnetizing inductance of the output transformer. Three methods for eliminating this oscillation are presented and analyzed. One of these methods requires a change in the circuit topology during the resonance cycle. This requires a new set of steady state equations which are derived and presented in a normalized form. Experimental results are included which demonstrate the nature of the low frequency oscillation before cyclic stability is lost.
Transformer Induced Instability of the Series Resonant Converter
IEEE Transactions on Aerospace and Electronic Systems ; AES-19 , 3 ; 474-482
1983-05-01
2840805 byte
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
Analysis of series-parallel resonant converter
IEEE | 1993
|Analysis of Series-Parallel Resonant Converter
Online Contents | 1993
|