期刊
IEEE TRANSACTIONS ON POWER ELECTRONICS
卷 23, 期 4, 页码 1649-1657出版社
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/TPEL.2008.924611
关键词
interleaved boost; open-loop control; power factor correction (PFC); variable frequency; zero-voltage switching (ZVS)
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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