Design and Implementation of PID Controller for a two Quadrant Chopper Fed DC Motor Drive. International Journal of Current Engineering and Technology, [S. l.], v. 3, n. 3, p. 897–901, 2013. Disponível em: https://ijcet.evegenis.org/index.php/ijcet/article/view/408. Acesso em: 4 apr. 2026.