Dr. Carlos Ruiz. Digital PWM-Controlled Seven-Level Symmetrical Multilevel Inverter for Improved Power Quality and Efficiency. Int. Res. Jour. of Com. & Ele. Engg. [Internet]. 2022 Oct. 22 [cited 2026 Oct. 21];9(2):8088. Available from: https://urgcee.org/index.php/ircee/article/view/76