Servo Magazine (June 2017)

The Multi-Rotor Hobbyist — Brushless Motor Basics

By John Leeman    View In Digital Edition  


I often find arguments about the brushless motors we commonly use on our multi-rotor aircraft. It’s not surprising given the wall of constants and graphs presented in the datasheets for these motors. This month, I’m going to attempt to clear up the topic by introducing the fundamental workings of the brushless DC motor (BLDC), and help you select the right motor for your next project.

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