ISSN:
1573-1979
Keywords:
analog multiplier
;
op-amp
;
linear VCOs
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
Notes:
Abstract A few linear voltage-controlled sinusoidal oscillators using IC op-amps (OAs) and IC analogue multipliers (AMs) in conjunction with passive components are already known. In present communication two new linear VCO circuits are proposed. The proposed configurations employ two IC OAs, two IC AMs and fewer passive components as compared to any other circuit of this class reported earlier. In these oscillators the condition of oscillation (CO) and frequency of oscillation (FO) are independently tunable. It has also been shown here that both the proposed circuits are reducible to single OA linear VCOs. The workability of all these configurations has been experimentally tested and the practical result conform with the theoretically obtained values.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1023/A:1008326900547
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