Title :
Quadrature oscillator with independent frequency control using ECCIIs
Author :
Kumngern, Montree ; Tuntrakool, Sunti
Author_Institution :
Dept. of Telecommun. Eng., King Mongkut´s Inst. of Technol. Ladkrabang, Bangkok, Thailand
Abstract :
This paper presents a new mixed-mode quadrature oscillator. The proposed structure employs two electronically tunable second-generation current conveyors, two grounded capacitors and three grounded resistors which is suitable for integrated circuit implementation. Unlike previously oscillators, both the condition of oscillation and the frequency of oscillation of the proposed oscillator can be controlled using resistors and/or current-gain of ECCII. The circuit provides two quadrature current outputs and two quadrature voltage outputs. The current output terminals also possess high-impedance level which can be directly connected to the next stage without additional buffer circuits. PSPICE simulation results are given to confirm the workability of the proposed structure.
Keywords :
buffer circuits; capacitors; circuit tuning; current conveyors; frequency control; oscillators; resistors; ECCII; PSPICE simulation results; buffer circuits; electronically tunable second-generation current conveyors; grounded capacitors; grounded resistors; independent frequency control; integrated circuit implementation; mixed-mode quadrature oscillator; oscillation frequency; quadrature current outputs; quadrature voltage outputs; Decision support systems; ECCII; analog circuit; mixed-mode oscillator; quadrature oscillator;
Conference_Titel :
TENCON 2014 - 2014 IEEE Region 10 Conference
Conference_Location :
Bangkok
Print_ISBN :
978-1-4799-4076-9
DOI :
10.1109/TENCON.2014.7022368