With regard to power tools. I’ve Googled and read, and it only seems to confuse me more. Thank you.
In: Engineering
Electric motors have several electromagnets that need to be turned on and off at the right time to get it to spin.
In a brushed motor this switching on and off is done mechanically by a set of brushes riding on a spinning ‘commutator’. Picture a really tiny Wheel of Fortune with electrical contacts (brushes) instead of a flapper. Which magnet is turned on depends on which segment of the Wheel of Fortune is currently touching the brushes.
In a brushless motor this switching is done electronically using transistors instead of mechanical contacts. This has a number of advantages: Since there are no brushes, they don’t wear out, don’t make noise, you can use higher currents and you also have more control over the timing of when you turn a certain electromagnet on or off.
This is why brushless motors can be more powerful, quieter and they don’t have problems with brushes wearing out.
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