driving a CD-ROM motor

Discussion in 'General Electronics Chat' started by rizwan_elias, Jul 4, 2011.

  1. rizwan_elias

    Thread Starter New Member

    Dec 11, 2009
    5
    0
    hi guys..i have a cd rom motor with me..after doing some research i came to know its a brushless dc..wat i cant find is how to drive it..thers a small chip "AN8499SH"..datasheet can be found here http://www.datasheetarchive.com/AN8499SH-datasheet.html

    i would really appreciate if someone guided me on how to drive the motor..ist really bugging me that i cant do anything with it..

    thanks in advance..
     
  2. BillB3857

    Senior Member

    Feb 28, 2009
    2,400
    348
    A BLDC (Brushless DC) motor actually runs on "manufactured" AC. Special circuits generate the AC from your DC supply. Some simply run an oscillator and others use sensors that are built into the motor, usually Hall devices, to provide commutation, or switching the power to different windings. Best way to use your motor is to reverse engineer the system it came from and see if you can find the input signal to the driver.
     
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