Open-Loop Control Methods for Interleaved DCM/CCM Boundary Boost PFC Converters
Open-loop interleaving methods for PFC boost converters operating at the boundary of discontinuous-conduction mode and continuous-conduction mode with a master-slave relationship are analyzed. It is shown that the only method that results in stable operation is the synchronization of the slave conve...
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Veröffentlicht in: | IEEE transactions on power electronics 2008-07, Vol.23 (4), p.1649-1657 |
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Hauptverfasser: | , , |
Format: | Artikel |
Sprache: | eng |
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Zusammenfassung: | Open-loop interleaving methods for PFC boost converters operating at the boundary of discontinuous-conduction mode and continuous-conduction mode with a master-slave relationship are analyzed. It is shown that the only method that results in stable operation is the synchronization of the slave converter to the turn-on instant of the master converter, where each converter operates with current-mode control. Effects of mismatched inductances, phase-shift error, switching-frequency limit, and valley switching on the quality of the input current are discussed in detail. |
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ISSN: | 0885-8993 1941-0107 |
DOI: | 10.1109/TPEL.2008.924611 |