Adaptive sigmoidal molten metal pouring control. - Emad Tabatabaei; Allon Guez; Hyuntae Choi (IEEE Trans. Control. Syst. Technol., 1998)

High gain DC/DC converter for the grid integration of large-scale PV systems. - Hyuntae Choi; Mihai Ciobotaru; Vassilios G. Agelidis (ISIE, 2012)

Hybrid energy storage for large PV systems using bidirectional high-gain converters. - Hyuntae Choi; Minsoo Jang; Mihai Ciobotaru; Vassilios G. Agelidis (ICIT, 2016)