The sign function is realized by fully hardware with a relatively high switching frequency. Meanwhile, a fast and practical rotation direction detection method which is based on back electromotive ...

It's time to test my ball-shaped wheeled vehicle off the road (or workshop floor) on other surfaces. I took it to #EMFCAMP ...

Tires come in different shapes, sizes, and treads, but have you ever wondered why some say inside and outside? Here's ...