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Sensored Vs. Sensorless Brushless Motor

With so many different kinds of motors out there, it can be difficult to keep them all straight. Here is an overview of the key differences between a sensored vs sensorless brushless motor. By understanding these differences, you will gain a new appreciation for these incredibly useful machines.

What is a Sensored Brushless Motor?

Before going into the details of sensored vs sensorless brushless motor, let’s go over what a sensored brush motor is. A brushless motor is essentially a synchronous electric motor that runs on DC, or, direct current. They use DC to power special magnets that rotate around the stator.

When asked, what is a sensored brushless motor, just think of it this way. A sensored brushless motor is a brushless motor that equipped with sensors that report information to the ESC about the position of the rotor. That’s the basic function of a sensor in a sensored brushless motor.

What Is the Difference Between a Sensored and Sensorless Motor?

The primary difference between a sensored and sensorless motor is that the latter typically lacks the hall sensors that are generally found in the former. A brushless motor without hall sensors is essentially a sensorless motor.

Is Sensored or Sensorless Better?

Now that you know more about the difference between a sensored and sensorless motor, you might be wondering which one is better to have. A sensorless motor must be closely monitored by the controller to keep the speed of the rotor in check.

For example, when it comes to a sensorless brushless motor, the controller will need to use the back-EMF to keep the speed of the rotor at a safe level.

One could argue that sensorless brushless motors are the better option here because they have fewer parts that can be damaged which makes them potentially less costly in the long run.

You should also know that sensorless brushless motors are the superior option in terms of speed. In the open loop, they are widely considered to be the fastest option. Finally, due to the fact that there are fewer parts that are more susceptible to damage, sensorless brushless motors can be used in harsh environments.

Get Yours at Telco!

In the market for a new brushless or sensorless motor? Then check out our selection of motors and find one that suits your preferences. Telco offers a wide variety of well-built motors to choose from at incredibly competitive prices.

Ready to experience the Telco difference? Click now and see what we have to offer!