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Old 09-09-2012, 03:38 PM
Manish Anand's Avatar
Manish Anand Manish Anand is offline
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Default Cooling Fan brushless motor driver

Hello Everyone!

Can anyone explain me the construction and working of this type of cooling fan motor.
Isn't it a single phase brushless motor.

I know how a 3 phase brushless motor works.

Please give me the circuit to drive this kind of motor.
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Old 09-09-2012, 03:58 PM
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looks like thats a DC motor!
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Old 09-09-2012, 04:13 PM
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those look like a 2 wire cooling fan for PC's..... connect it to 12 volts and you should be good to go, the speed on those 2 wire ones can be controlled using PWM.
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Old 09-10-2012, 04:03 AM
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Smile

Thanks for replying!
I am curious about that cooling fan motor driver circuit and how it works?
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Old 09-10-2012, 04:33 PM
NFA Fabrication NFA Fabrication is offline
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Is it only a 2 wire motor? It looks like it from the pics. Most brushless motors I have seen are 3 wire unless they had an internal driver. If it is a regular 2 wire DC motor, you don't need a driver.
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Old 09-10-2012, 04:37 PM
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Quote:
Originally Posted by NFA Fabrication View Post
Is it only a 2 wire motor? It looks like it from the pics. Most brushless motors I have seen are 3 wire unless they had an internal driver. If it is a regular 2 wire DC motor, you don't need a driver.

It is a brushless DC Motor for computer cooling, it is one of the older 2 wire ones without the tack output..... and it does have a built in driver which is on the PCB shown under the coils.....
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