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

    Joined:
    Jun 13, 2011
    5
    0
    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.
     
    #1
  2. Dodgydave

    Dodgydave Well-Known Member

    Joined:
    Jun 22, 2012
    2,840
    386
    looks like thats a DC motor!
     
    #2
  3. BMorse

    BMorse Senior Member

    Joined:
    Sep 26, 2009
    2,673
    233
    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.
     
    #3
  4. Manish Anand

    Manish Anand Thread Starter New Member

    Joined:
    Jun 13, 2011
    5
    0
    Thanks for replying!
    I am curious about that cooling fan motor driver circuit and how it works?
     
    #4
  5. NFA Fabrication

    NFA Fabrication Member

    Joined:
    Aug 12, 2012
    101
    3
    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.
     
    #5
  6. BMorse

    BMorse Senior Member

    Joined:
    Sep 26, 2009
    2,673
    233

    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.....
     
    #6
Loading...