Sensored BLDC Motor
Imagine having a smart assistant constantly telling you where the wheels of your electric car are. This is how a brushless motor with a sensor works. It uses sensors to precisely control the movement of the motor, allowing electric vehicles to perform exceptionally well when starting up and climbing hills.
Our XBD-3064 motor lineup stands out for its robust performance and reliability. Engineered with precision, it offers seamless integration and superior control, making it ideal for a variety of applications, from UAVs to industrial machinery.
Sensorless BLDC Motor
Sensorless BLDC Motor, on the other hand, is like a self-taught athlete. It does not require external guidance and relies on its own senses to perceive and adjust. Despite the lack of sensors, it uses changes in the motor's current to estimate its position, reducing some costs and making it a more economical option for devices that don't require precise control, such as home appliances.
How to choose:
If you need a responsive and powerful assistant, then choose a sensing brushless motor. However, if cost is a major consideration and performance requirements are not that high, a sensorless brushless motor would be a good choice.
Sensored BLDC Motor
This type of motor is equipped with sensors, typically Hall effect sensors or encoders. These sensors are used to detect the position of the rotor, allowing the electronic controller to precisely manipulate the current and thus control the motor’s movement. The sensors provide real-time rotor position information, helping to ensure the smooth operation of the motor.
Sensorless BLDC Motor
This type of motor does not have additional sensors and instead relies on the electronic controller to estimate the rotor’s position by observing the waveforms of the motor’s phase current and voltage. This is known as the Back EMF (electromotive force) method, which infers the rotor position by monitoring changes in the motor’s current and voltage, thereby achieving motor control.
Advantages and Disadvantages:
Sensored Brushless Motor:
Due to the real-time sensor information, this type of motor typically exhibits better performance at low speeds and high loads. However, the sensors may introduce additional costs, complexity, and potential for failure.
Sensorless Brushless Motor:
This motor simplifies the motor system, reduces sensor usage, thereby lowering costs and improving reliability. However, there may be control uncertainties at low speeds and high loads.
Applications:
Sensored Brushless Motor:
Commonly used in applications that demand higher performance and response times, such as electric vehicles, industrial drives, and some precision instruments.
Sensorless Brushless Motor:
Due to its simplified structure and lower cost, it is often used in applications with relatively lower performance requirements, such as consumer electronics, household appliances, and low-end industrial applications.
When choosing between sensored and sensorless brushless motors, specific application requirements, cost considerations, and performance expectations need to be taken into account. Some applications may be better suited for sensored motors, while others may be more suitable for sensorless motors.
Sinbad Motor has more than a decade of professional experience in the field of BLDC motors and has accumulated a large amount of motor customized prototype data for customer reference. In addition, the company also provides precision planetary boxes or corresponding encoders with specific reduction ratios to quickly design micro transmission solutions that meet customer needs.
Post time: Apr-02-2024