No.5（2002）14.Development of an electric-powered carriage under simplified motor control

Isamu YAMAGUCHI, Katsumi YAMAMOTO, Hiroshi SHIGEMATSU, Teruhisa TAHARA, Hideki SHIMIZU,Midori HOSHINO and Hirohiko SUGAWARA

We developed a cost-efficient electric carriage by simplifying its control circuit. This is controlled to run at a constant speed. A microcomputer is used to start and stop the carriage smoothly.
The features are as follows:

1. Noise-tolerant algorithm in the software that controls starting and stopping
2. Reduction of parts on the control unit
3. Improvement of operability through the addition of an emergency button and an operation indicator

Keywords
PWM, Interrupt, Soft start, Power electronics, Speed detection

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