Fractional Wien Bridge Oscillator
Umesh Kumar
The classical Wien bridge sinusoidal oscillator is studied, in which the capacitors acquire fractional order. And the Wien Bridge is described by a set of fractional order non-linear differential equations. These are used to store energy and these types of devices are not yet commercially available. The sinusoidal oscillations are preserved but the phase shift between the waveforms of the two state variables and the frequency of oscillations. Both depend on fractional-order. These fractional order capacitors are used for power factor correction. The higher the fractional order, smaller the power loss and smaller the value of capacitance needed to correct the power factor.
Keywords: Oscillators, Wein bridge, Fractional capacitors, Electronic circuits.