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AC voltage driver?

  1. May 15, 2008 #1
    AC voltage driver??

    Do AC voltage drivers exist?
    I want to develop a control system using a DAQ to vary the amplitude of a 110V AC sine signal being fed into a 110V AC fan motor, in order to control its speed. Does anyone have any suggestions

    The method I was going in is to complicated, it involves generating a variable +/- 10v sine signal from the DAQ feeding it into a power amplifier and then feeding the amplified voltage to the motor.

    I appreciate all help and suggestions.

  2. jcsd
  3. May 16, 2008 #2


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  4. May 17, 2008 #3
    A triac regulator might work too if you don't require much power.
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