The paper demonstrates the existence of various modes of transformer-induced low-frequency oscillations (TLOs) which can be observed in the series-resonant power converter with a transformer integrated in the resonant circuit. The modes of operation under conditions of cyclic stability are explained for TLOs at both the primary side and the secondary side of the transformer. The TLO phenomena cause various problems, e.g. the instability of waveforms and reduction of the power capacity. The paper will also present a practical solution to overcome the indicated problems for series-resonant converters with an integrated transformer. The results of simulation and experimental observation confirm the existence of the TLOs.
| Filename: | EPE Journal - 02-3 - 3 - Paper Klaassens |
| Filesize: | 813 KB |
