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About Brushless Motors
Brushless motors are synchronous electric motors that have a magnetically (AC induction) or electronically (DC) controlled commutation system instead of a brush-based mechanical commutation system. Brushed motors are used in many applications, but have an important disadvantage in that the brushes wear out. Brushed motors also limit the speed of the motor, and the sparking from making and breaking connections creates electrical noise. In addition, the position of the electromagnet on the armature makes the motor difficult to cool. Brushless motors overcome these limitations because there are no brushes to wear out and there is no sparking. In addition, the electromagnets on the stator are easier to cool. Brushless motors are more efficient, but also more expensive.
Engineering Web: Brushless Motors - Machine Design
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Electric Motors & DC Motors The Electric Motors Reference Center, from Machine Design, is designed to provide design engineers with the information they need to specify or |
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Selecting Dc Brush and Brushless Motors | A fundamental... Selecting Dc Brush and Brushless Motors The decisions to be made include whether to employ brushless or brushed dc, or stepper motors. |
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Brushless DC Motors | Machine Design Brushless DC Motors November 15, 2002 Printer-friendly version |
