Monday, December 15, 2014

Sensored Cd-Rom BLDC Motor Hall Effect Sensors

BLDC Motor hall effect sensors

In this post I will show how to test the hall effect sensors attached with the sensored BLDC motor. Totally there are 3 hall effect sensors in the sensored BLCD motor.
The hall effect sensors are necessary to know the position of the motor in order to energize just two windings.
The hall effect sensor is a small IC has 4 pins in the cd-rom drive motor, vcc, gnd and the two others are data pins.
This schematic diagram shows how to test the three hall effect sensors.

cd rom bldc brushless dc motor hall effect sensor

BLDC motor hall effect sensors testing circuit:

cd rom bldc motor hall effect sensors circuit connection

BLDC Motor hall effect sensors testing:
After the connection of the above circuit, it should work as shown in the following video.