Jiya, Immanuel, Wian Snyman, Nicoloy Gurusinghe, and Rupert Gouws. 2018. “PWM and Duty Ratio Switching of Multiple Input Converters Using FPGAs: A Digital Logic Circuit and VHDL Hybrid Approach”. International Journal of Engineering & Technology 7 (4): 4519-27. https://doi.org/10.14419/ijet.v7i4.20073.