Difficulty Identifying a 3-phase brushless motor from windings

Thread Starter

Elazar

Joined Oct 29, 2019
36
Hi All,

Can anyone identify this motor?
and any advice on how to drive it?
See pictures below...

The resistance between the wires are 1.8 ohms for all combinations,

There is around permanent magnet inside.

Pic2.pngpic1.png
 

MaxHeadRoom

Joined Jul 18, 2013
23,639
That appears to be a simple electronically self commutated fan motor, you require a specialized drive, usually microprocessor based version in order to detect rotor position at start up.
 

Thread Starter

Elazar

Joined Oct 29, 2019
36
I am designing a control board for this type of motor, the motor will be used as an air pump (a simple fan) that does not need to be very accurate but I will need to be able to control the speed...
 

MaxHeadRoom

Joined Jul 18, 2013
23,639
You could try it on straight 3ph and see what results you get, you will find out if commutation is needed.
A motor like this can also be driven in BLDC fashion, but would definately require commutation of some kind.
 
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