What is a brushless motor?
In: Engineering
A regular DC electric motor relies on a device called a “commutator” to allow the regular switches in magnetic field that allow it to spin. This is basically a pair of metal contacts mounted on the motor shaft. Current is transferred across to these contacts via stationary “brushes”, which might be metallic or carbon.
A brushless design, on the other hand, uses electronics rather than mechanical means to switch the magnetic field. This means they don’t need the commutator or the brushes, and more importantly, means they last a lot longer because brushes wear out over time due to the constant rubbing between them and the commutator. It also makes their speed a lot easier to control. This is why PC fans have been using brushless motors for years.
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