Sensorless Brushless DC Motor Reference Design

This reference design provides a hardware and software solution for Sensorless Brushless dc motors. This document includes complete schematics, printed circuit board layout, and firmware. The Sensorless Brushless dc motor reference design may be used as a starting point for motor control system designers using Silicon Laboratories MCUs, significantly reducing the design time and time to market.

Brushless dc motors consist of a permanent magnet rotor with a three-phase stator winding. Brushless dc motors evolved from conventional dc motors where the function of the brushes is replaced by electronics. Brushless dc motors offer longer life and less maintenance than conventional brushed dc motors.