Power electronic converters have been widely used, not
only for industry applications but also in many electronic
products in our daily life. In which, the power converters
perform conversion and regulation of voltage or current levels
between the power sources and loads. In general, a power
electronic converter is supplied from a power source and
provides the required voltage or current level to the loads. In
the case that two or more voltage or current levels are required
by the loads, an output transformer with multiple windings is
employed [1], [2]. However, for some practical applications of
renewable powers and battery systems, the load may not be
powered from single source but from different kinds of power
sources specified by dissimilar voltage, current, and power
ratings. For example, solar power street lamps are actually
powered from solar cells and batteries.