Optimization algorithm for accurate frequency sine wave PWM generation with microcontrollers. - Humberto Bolanos-Cerrud; Albino Martínez-Sibaja; José P. Rodríguez-Jarquin; Karina Romero-Guizasola; Ignacio Herrera-Aguilar; Rubén Posada-Gómez (CCE, 2017)