What are Brushless DC Motors and why are they so important? 

Lately, brushless DC motors have increasingly become of common use in many applications. This is due to the presence of some useful advantages that they entail compared to other motor types and that relate to their nature and composition. In the following lines we are going to explain how brushless DC motors (BLDC) are structured and, after that, we are going to list the elements that make them so important nowadays.


Differently from brushed DC motors, their brushless version do not use brushes, as the name suggests. Therefore, the following question naturally arises: “how can brushless DC motors pass current to the rotor coil?”. They simply do not, since coils are not located in the rotor. On the contrary, the rotor is a magnet which is fixed in place on the stator. Therefore, since the coils are stationary, brushes are not requested. While a brushed motor generates energy by controlling the magnetic fields created by the coils on the rotor, a
BLDC motor generates itby changing the direction of the magnetic fields that are activated by the fixed coils and that causethe stationary magnet to rotate. In order to control the rotation process it, is necessary to adjust two elements of the electricity into the coils: magnitude and direction.


To begin with, brushless DC motors are more efficient than most of other motor types. In fact, they are able to control constantly at maximum rotational force, called torque, and can achieve high amount of power. In addition, due to the absent of a brush, BLDC motors function considerably more quietly and have high durability compared to the ones equipped with the brush, which often wear down as a result of continuous moving contact and the sparks produced during the process. Finally, and perhaps most importantly, they are extremely easy to control. By using feedback mechanisms, they can reach the precise and aimed torque and rotation speed, an element that results in a consistent reduction of energy consumption and heat generation.


BLDC motors are being used widely nowadays. Due to a continuous decrease in costs since their birth they have become a perfect fit for consumer electronics such as washing machines and heating and ventilation devices such as air conditioners. However, they have become crucial for expanding sector as well, such as model engineering and industrial engineering,but also for transports of any kind. For instance, they are the kind of motors adopted by Formula E, because they guarantee considerable power associated with a long lasting life. Moreover, new developments and improvements are constantly made with the aim to achieve results that are even difficult to imagine.

7 thoughts on “What are Brushless DC Motors and why are they so important? 

  1. I together with my guys have been reading through the best key points on the blog and then the sudden I had a terrible feeling I had not thanked the web site owner for them. All of the men are already for this reason warmed to see all of them and have in effect in truth been enjoying them. We appreciate you simply being really kind as well as for pick out such remarkable things millions of individuals are really desirous to know about. Our honest regret for not expressing gratitude to sooner.

  2. Thank you a lot for providing individuals with an exceptionally terrific opportunity to read in detail from this web site. It is often very sweet and as well , full of a lot of fun for me and my office acquaintances to visit the blog minimum thrice per week to find out the fresh secrets you have. Of course, I’m at all times fulfilled for the exceptional solutions served by you. Certain 2 areas in this post are easily the best I’ve had.

  3. I in addition to my pals happened to be reading through the good key points found on your web site then instantly developed an awful feeling I had not thanked the web site owner for those strategies. All of the boys were definitely certainly very interested to read through all of them and have actually been taking pleasure in those things. Appreciate your being indeed helpful and for settling on this sort of extraordinary useful guides most people are really eager to understand about. My very own honest regret for not expressing appreciation to you sooner.

  4. I actually wanted to post a small note to express gratitude to you for some of the pleasant ideas you are placing here. My long internet investigation has finally been honored with brilliant facts and strategies to share with my family. I would suppose that many of us website visitors actually are very endowed to live in a magnificent website with many marvellous people with great things. I feel very much lucky to have used your entire website page and look forward to many more fun minutes reading here. Thanks once more for all the details.

  5. I must convey my respect for your kind-heartedness for those people that have the need for guidance on this area. Your special dedication to getting the solution around was pretty valuable and have in every case made individuals much like me to reach their goals. The useful suggestions denotes a whole lot a person like me and further more to my colleagues. Many thanks; from each one of us.

Leave a Reply

Your email address will not be published. Required fields are marked *