Cooling Fan brushless motor driver

Discussion in 'General Electronics Chat' started by Manish Anand, Sep 9, 2012.

  1. Manish Anand

    Manish Anand Thread Starter New Member

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    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.

    Attached Files:

  2. Dodgydave

    Dodgydave Well-Known Member

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    looks like thats a DC motor!
  3. BMorse

    BMorse Senior Member

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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.
  4. Manish Anand

    Manish Anand Thread Starter New Member

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    Bangalore,India
    Thanks for replying!
    I am curious about that cooling fan motor driver circuit and how it works?
  5. NFA Fabrication

    NFA Fabrication Member

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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.
  6. BMorse

    BMorse Senior Member

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    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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