Title :
An active-only high-output impedance current-mode quadrature oscillator using CCCCTA based-lossless differentiators
Author :
Lawanwisut, Supawat ; Siripruchyanun, Montree
Author_Institution :
Dept. of Teacher Training in Electr. Eng., Univ. of Technol. North Bangkok, Bangkok, Thailand
Abstract :
This article presents a high-output impedance current-mode quadrature sinusoidal oscillator, providing sinusoidal signals, which differ of 90° in phase. The features of the proposed circuit are that; oscillation frequency can be electronically controlled; it can provide the quadrature signal, which is free from the preset of oscillation condition. In addition, since the proposed circuit comprises only active elements, which are 2 CCCCTAs and 2 operational amplifiers, it is very suitable to further develop into an integrated circuit. The PSPICE simulation results are depicted.
Keywords :
current-mode circuits; operational amplifiers; oscillators; CCCCTA based-lossless differentiators; PSPICE simulation; active elements; active-only high-output impedance current-mode quadrature oscillator; integrated circuit; operational amplifiers; oscillation condition; oscillation frequency; quadrature signal; sinusoidal signals; Circuit simulation; Educational technology; Energy consumption; Frequency; Impedance; Integrated circuit synthesis; Integrated circuit technology; Operational amplifiers; Oscillators; SPICE; Active-only; CCCCTA; Differentiator; Operational amplifier; Quadrature oscillator;
Conference_Titel :
TENCON 2009 - 2009 IEEE Region 10 Conference
Conference_Location :
Singapore
Print_ISBN :
978-1-4244-4546-2
Electronic_ISBN :
978-1-4244-4547-9
DOI :
10.1109/TENCON.2009.5395861
