Abstract—A novel interleaved
boost converter with zero-voltage switching (ZVS) and zero-current switching
(ZCS) characteristics is proposed in this paper. By using the interleaved
approach, this topology not only decreases the current stress of the main
circuit device but also reduces the ripple of the input current and output
voltage. Moreover, by establishing the common soft-switching module, the
soft-switching interleaved converter can greatly reduce the size and cost. The
main switches can achieve the characteristics of ZVS and ZCS simultaneously to
reduce the switching loss and improve the efficiency with a wide range of load. This topology has
two operational conditions depending on the situation of the duty cycle. A
driving circuit is designed for the proposed topology to determine the two
conditions automatically. The operational principle, theoretical analysis, and
design method of the proposed converter are presented. Finally, simulations and
experimental results are used to verify the feasibility and exactness of the
proposed converter.
Index Terms—Interleaved
boost converter, zero-current switching (ZCS), zero-voltage switching (ZVS).
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