Multilevel digital sonar power amplifier with modified unipolar SPWM. - Bineesh P. Chacko; V. N. Panchalai; N. Sivakumar (ICACCI, 2015)

Multilevel converter for excitation of underwater transducers. - Anand Sreekumar; V. N. Panchalai; Bineesh P. Chacko; Preethi Thekkath (ICACCI, 2015)