Saturday, November 1, 2014

Sensored Cd-Rom BLDC Motor Hall Effect Sensors

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

This video shows how should it work: