Three-phase ac motor driver 2


Posted on Jun 9, 2012

By varying either Rl or R2, the oscillator frequency can be adjusted over a narrow range. The R3/R4 ratio sets the second amplifier's gain to compensate for signal attenuation occurring in the phase shifters. The circuits can be driven from an external source, such as a pulse or square wave, setting the gain of the left-hand amplifier to a level less than that required for oscillation.


Three-phase ac motor driver 2
Click here to download the full size of the above Circuit.

The RC feedback networks then function as an active filter causing the outputs to be sinusoidal.




Leave Comment

characters left:

Related Circuits

  • New Circuits

    .

     


    Popular Circuits

    50 Watt power Amplifier
    radio transmission to get the GPS data
    2 watt fm transmitter
    Crystal pickup pre-amplifier circuit
    Electret microphone amplifier circuit design using transistors
    Real-Time Energy Monitor with Arduino and LabVIEW
    Charge amplifier



    Top