IN APPLICATIONS where nonisolation,step-down conversion
ratio, and high output current with low ripple are required,
an interleaved buck converter (IBC) has received a lot
of attention due to its simple structure and low control complexity
[1]–[6]. However, in the conventional IBC shown in
Fig. 1, all semiconductor devices suffer from the input voltage,
and hence, high-voltage devices rated above the input voltage
should be used