BLDC Motor:Brushless DC Motor

 

Brushless DC motor with a driver is a typical mechatronic product.

 
Symmetrical three-phase star connection makes the motor stator windings. It is quite similar to three-phase asynchronous motors. The rotor of the motor consists of a permanent magnet. The motor comes with a built-in position sensor that can detect the polarity of the motor rotor.

 
As there are no excitation loss and carbon brush, it can save up to 30% energy. Brushless structure eliminates radio interference. As it does not produce sparks, this motor is particularly suitable for industries dealing with highly explosive materials.

 

Core Structure of a Brushless DC Motor

 

DC Motor

 

Usually, there are two types of Brushless DC motors, inner rotor motor, and outer rotor motor.

 

Inner Rotor Motor:

 
The rotating part, the rotor coil is placed in the inner portion of the structure. The outer portion consists of the pole that is a fixed part of the structure.

 

Outer Rotor Motor:

 
In this type of motor, rotating part is the magnetic pole. The magnetic pole is placed on the outside, while the fixed part (coil) is placed on the inside.

 

How to Select Your Suitable BLDC Motor

 

Compared to induction motors, BLDC motors have several advantages such as small size, a wide range of speed, and high efficiency.

 

Compared to brush motors, DC motors, and universal motors; BLDC motors have a few good features including long service life, low noise, anti-electromagnetic interference, and high efficiency.

 

List of BLDC Motor Selection Criteria:

 

1) Diameter

 

Our BLDC motor range consists of motors designed to meet different power and torque requirements. The diameter size ranges from 42mm to 130mm.

 

2) Type

 

You can choose from two types of motors, inner rotor BLDC motor, and outer rotor BLDC motor.

 

3) Winding

 

We make different types of windings as per your choice of voltages and torque constant specifications. However, 12V 24V BLDC motors are the most popular designs, today.

 

4) Driver or Controller

 

BLDC motors (Brushless DC electric motors) are also known as electronically commutated motors. In the case of a fixed number of rotor poles, changing the frequency of the stator rotating magnetic field can change the speed of the rotor. The driver control unit can convert the input power frequency on demand. You can choose from a variety of control options such as analog-to-digital converter (ADC) and pulse wide modulator (PWM).

 
Standard BLDC motor series by POWER JACK MOTION:

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