抄録
We developed teaching materials of step-down chopper circuit experiments for efficient learning of power electronics. In this experiment, students learn the principle of the step-down chopper circuit and PWM control, and the relationship between transient response and current ripple. On the other hand, in order to prevent the spread of COVID-19 infection, the distance education was carried out in many technical colleges and many on-demand teaching materials were developed. In this study, we investigated the effect of applying on-demand teaching materials developed for distance education to engineering experiments. From confirmation tests, questionnaire surveys, and student reports, we confirmed that it is effective to apply on-demand teaching materials to engineering experiments.