IGBT Based Four Quadrant Chopper Drive Closed Loop Control for DC K. Santhosh, Khammapati R. Sree Jyothi, D. Anusha, Bhukya Rajkumar, Enuganti Venu and V. Jagadish E3S Web Conf., 472 (2024) 01009 Published online: 05 January 2024 DOI: 10.1051/e3sconf/202447201009