Design Demo

This is a Powerpoint presentation of the mechanical and electrical design and assembly work I did during the first half of the course to design and manufacture a brushless DC motor from scratch. This design incorporated validation methods such as physical test-model verification and virtual simulation using software like FEMM and SimulationX. Since we also needed to assemble this motor by hand we incorporated DFA and DFM principles to push more ambitious goals.

As of mid-term demo day, March 2nd, we had demonstrated variable speed spinning under loaded and unloaded conditions with early iterations of a driver circuit and controls algorithm.

6MB

CustomMotor.pptx

Custom BLDC Motor

Single Phase Characteristics

• At 12V current draw is 1.26A (we would expect this to decrease when motor is in motion)

• At 15V current draw is 1.46A

• At 17V the motor starts to bind (plastic bends st rotor contacts stator)