“…The disadvantage of this converter is the control, which is difficult because the transistor is floating, and the output voltage polarity is opposite to that of the input voltage. In the literature, different Buck-Boost-type topologies can be found, beginning with a buck-boost converter with positive output voltage, presented in [35], a bidirectional buck-boost converter [36][37][38], cascaded [39], quadratic [40] or multi-input converters [41,42], etc. Also, the classical Ćuk, SEPIC and ZETA converters [13,61] are of step-up/step-down nature.…”