Motaparthi, Nagaraju, and Kiran kumar Malligunta. “Seven-Level Symmetrical Series/Parallel Multilevel Inverter With PWM Technique Using Digital Logic”. International Journal of Electrical and Computer Engineering Systems 12, no. 3 (August 27, 2021): 123-130. Accessed December 22, 2024. https://ijeces.ferit.hr/index.php/ijeces/article/view/92.