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National Taiwan Normal University Department of Technology Application and Human Resource Development


In this paper, we create a “newly designed LED motor teaching device” based on the innovative concept of substituting LED for coil inside the motor. The color of LED lights indicates the pole and direction of the magnetic field. With a control circuit to manipulate the LED lights, we can create visual effects that simulate the spinning motion of electromagnetic fields inside a motor. The colorful blinking LED light, resembles the neon sign, can attract students' attention easily and boost their learning motivation. This device will break down the “continuous” rapid action of rotating electrical machinery, into a “discrete” step-by-step manual operation mode. With the aids of the flashing LED lights, students will gradually understand the principles of rotating electrical machines through hands-on operation. The rotating electrical machinery teaching materials can be used in actual electrical machinery courses. The teaching evaluation estimated by surveys and examinations shows that the rotating electrical machinery teaching materials can significantly enhance the effectiveness of teaching and learning. The teaching aids and teaching materials can also be teaching reference of electrical machinery theoretical and experimental courses in vocational schools and universities.