A new voltage mode quadrature oscillator using grounded capacitors: An application of CDBA

Abstract The paper realizes a single-resistance-controlled oscillator employing current differencing buffered amplifiers as active devices, and virtually grounded resistors and grounded capacitors as passive components. Operating in voltage mode, the designed circuit is capable of generating quadrature outputs along with an unambiguous control of oscillating frequency and condition of oscillation. Initially, practicality and feasibility of the design has been justified by the results obtained using PSPICE simulation software. Simulation results include time response and frequency response outputs generated by using the commercially available I.C. of CFOA, i.e. AD844, as well as by using the CMOS structure of active device employed. Later, hardware experimentation of the design has been included, for which AD844 along with standard components have been employed. Validating results have been obtained in both the cases.

[1]  Raj Senani,et al.  Current Feedback Operational Amplifiers and Their Applications , 2013 .

[2]  J. Horng Current Differencing Buffered Amplifiers Based Single Resistance Controlled Quadrature Oscillator Employing Grounded Capacitors , 2002, IEICE Trans. Fundam. Electron. Commun. Comput. Sci..

[3]  Tajinder Singh Arora,et al.  Multifunction Filter Employing Current Differencing Buffered Amplifier , 2016 .

[4]  Hakan Kuntman,et al.  Single resistance-controlled sinusoidal oscillators employing current differencing buffered amplifier , 2000 .

[5]  R. K. Sharma,et al.  Sinusoidal Oscillators and Waveform Generators using Modern Electronic Circuit Building Blocks , 2015 .

[6]  Serdar Ozoguz,et al.  A new versatile building block: current differencing buffered amplifier suitable for analog signal-processing filters , 1999 .

[7]  R. K. Sharma,et al.  Adjoint-KHN Equivalent Realization of Current Mode Universal Biquad Employing Third Generation Current Conveyor , 2016 .

[8]  Tajinder Singh Arora,et al.  Current mode universal filter employing operational transconductance amplifier and third generation current conveyor , 2016, 2016 IEEE 1st International Conference on Power Electronics, Intelligent Control and Energy Systems (ICPEICES).

[9]  Abdhesh K. Singh,et al.  New Voltage Mode Universal Filters Using Only Two CDBAs , 2013 .

[10]  Ahmed M. Soliman Current Feedback Operational Amplifier Based Oscillators , 2000 .

[11]  Fırat Kaçar,et al.  Design and experiment of VDCC-based voltage mode universal filter , 2015 .

[12]  A. U. Keskin,et al.  Quadrature Oscillator Using Current Differencing Buffered Amplifiers (CDBA) , 2006 .

[13]  W. Tangsrirat,et al.  CDBA-based Quadrature Sinusoidal Oscillator , 2007 .

[14]  W. Tangsrirat,et al.  Single-resistance-controlled quadrature oscillator using current differencing buffered amplifiers , 2008 .

[15]  Raj Senani,et al.  Realization of a Class of Analog Signal Processing / Signal Generation Circuits: Novel Configurations Using Current Feedback Op-Amps , 1998 .

[16]  Shahram Minaei,et al.  A 22.5 MHz current-mode KHN-biquad using differential voltage current conveyor and grounded passive elements , 2005 .

[17]  Shahram Minaei,et al.  All-Grounded Passive Elements Voltage-Mode DVCC-Based Universal Filters , 2010, Circuits Syst. Signal Process..

[18]  Kobchai Dejhan,et al.  An integrable electronic-controlled quadrature sinusoidal oscillator using CMOS operational transconductance amplifier , 2002 .

[19]  Hakan Kuntman,et al.  Single DDCC Biquads with High Input Impedance and Minimum Number of Passive Elements , 2005 .

[20]  Jan Jerabek,et al.  Simple CMOS voltage differencing current conveyor-based electronically tunable quadrature oscillator , 2016 .

[21]  Tajinder Singh Arora,et al.  On the realisation of canonic single-resistance-controlled oscillators using third generation current conveyors , 2017, IET Circuits Devices Syst..

[22]  Worapong Tangsrirat,et al.  CDBA-Based Universal Biquad Filter and Quadrature Oscillator , 2008 .

[23]  Erhan Hancioglu,et al.  Current mode multifunction filter using two CDBAs , 2005 .

[24]  Tajinder Singh Arora,et al.  Single-resistance-controlled quadrature oscillator employing two current differencing buffered amplifier , 2016, 2016 2nd International Conference on Contemporary Computing and Informatics (IC3I).

[25]  Abdhesh K. Singh,et al.  Current Conveyors: Variants, Applications and Hardware Implementations , 2014 .