VDCC Based Sinusoidal Oscillators Using All Grounded Capacitors: A Series of Realization

A series of eight new current mode sinusoidal oscillators employing a versatile and less explored active element, i.e., voltage differencing current conveyor, is presented in this manuscript. All the derived oscillators provide an explicit current output from their high impedance port. Enumerated circuits require only a single active element, two grounded capacitors, and two passive resistors. Amongst all newly proposed oscillator circuits, two configurations utilize only grounded passive elements and can simultaneously provide explicit current quadrature outputs. The condition and frequency of oscillation, in all cases, are simple and orthogonal. All regular mathematical analysis, such as non-ideal, sensitivity and parasitic, are presented to support the design ideas.In addition to the experimental results performed using commercially available integrated circuits, software simulation results of all the proposed circuits have also been included in the manuscript. In the former case the range of frequencies, for the designed oscillators, as low as 349 kHz and as high as 2.64 MHz where as the experimental range of frequencies lies in the span of 192 kHz to 5.8 MHz. The best figure for total harmonic distortion can be found as low as 1.2% for oscillator no. 8.