Keisuke Fujita, Kohji Higuchi, Kazushi Nakano, Koji Matsushita, Tatsuyoshi Kajikawa, Fumiho Chino. Current control of a PWM power amplifier by an approximate 2-degree-of-freedom digital controller. Artif. Life Robotics, 14(3):433-439, 2009. [doi]
Abstract is missing.