期刊名称:American Journal of Electrical and Electronic Engineering
印刷版ISSN:2328-7365
电子版ISSN:2328-7357
出版年度:2019
卷号:8
期号:1
页码:1-10
DOI:10.12691/ajeee-8-1-1
出版社:Science and Education Publishing
摘要:A class of second order sinusoidal oscillators is presented which employs a single Current feedback-operational amplifier, four capacitors and four to five resistors which can be realized by CMOS linear voltage controlled resistors (VCR). The proposed circuits are simultaneously single resistance controlled oscillators (SRCO) as well as single capacitor controlled oscillators (SCCO) providing independent control of condition of oscillation and frequency of oscillation through independent resistors as well as independent capacitors. To the best knowledge of the authors, any single-CFOA-based oscillators which are simultaneously SRCOs as well as SCCOs have not been reported in the literature earlier. SPICE simulation results using 0.18μm CMOS technology have been given which confirm the validity of the proposed circuits.
关键词:current feedback op-amps; sinusoidal oscillators; voltage controlled oscillators