Comparison of impedance-source networks for two and multilevel buck-boost inverter applicationsHusev, Oleksandr; Blaabjerg, Frede; Roncero-Clemente, Carlos; Romero-Cadaval, Enrique; Vinnikov, Dmitri; Siwakoti, Yam P.; Strzelecki, RyszardIEEE transactions on power electronics2016 / p. 7564-7579 : ill https://doi.org/10.1109/TPEL.2016.2569437

Novel family of single-phase modified impedance-source buck-boost multilevel inverters with reduced switch countHusev, Oleksandr; Strzelecki, Ryszard; Blaabjerg, Frede; Chopyk, Vasiliy; Vinnikov, DmitriIEEE transactions on power electronics2016 / p. 7580-7591 : ill https://doi.org/10.1109/TPEL.2016.2569535