Projector color wheel wiring

[camilozk]

Hi!

I got a color wheel from an old projector, and I would like to see it turning. It has 4 wires, but I have no idea which to connect. Any suggestion how to know to which wires I apply power?

thanks!

 

[Rixen]

This is most likely a Brushless DC motor, which require special circuitry to handle commutation, you cannot simply 'apply power' and expect it to run..

 

[camilozk]

thanks for the info. I am already in the look for how to drive this motor with an arduino.

 

[kellys_eye]

Potentially a 4-wire stepper too. Can you measure the resistance between each connection?

 

[camilozk]

1 - 2 = 5.6Ω

1 - 3 = 5.6Ω

1 - 4 = 3Ω

2 - 3 = 5.5Ω

2 - 4 = 2.9Ω

3 - 4 = 2.9Ω

 

[73's de Edd]

Sir camilozk . . . . .

In its former life, your 3-PHASE BRUSHLESS DC. MOTOR was typically connected to this family of driver chip.
See a typical application on page 10 and the pins 5-8-9-and 10 connections to the motor..

https://www.allegromicro.com/~/medi...hash=198BF118AAC04ABE4E4E25BAD24232492A727C04

PLUS . . . .
https://www.google.com/search?q=dri...gPTdAhUEaq0KHaOPDp4Q_AUIDigB&biw=1920&bih=938

73's de Edd
.....