In Class Activity - 01 _ BLDC Motor

 During several lectures on AT 219, we learned some new knowledge and started an assignment regarding how a BLDC (Brushless DC) motor works.

The BLDC motor has a stationary stator with coils of wire and a rotating rotor with magnets. The stator generates a rotating magnetic field when electric current flows through the coils, which interacts with the magnets on the rotor, causing it to rotate. With a very high frequency, it produces the right amount of rotations which could power the propellor to produce thrust. The electronic control circuit determines the position of the rotor and sends signals to the coils in a specific sequence to ensure that the magnetic field rotates in the correct direction and speed to keep the rotor turning. 

There are typically three stator coils in a BLDC motor, which are arranged in an upside-down "Y"  configuration.  (As the picture shows below)

We have also attached several numbers of buttons, each button them are in charge of a different stage of the cycle, with the right order, we were able to power the motor and make it slightly spin in the proper direction. (Shown below is our completed model before testing.)

On our final testing, after replacing a dead wire, we were able to get the right output. Slight movements and rotations were conducted.