NDLI: Amplitude control in a triangular wave quadrature oscillator

Content Provider	IEEE Xplore Digital Library
Author	Vidal, E. Poveda, A. Alarcon, E.
Copyright Year	1999
Description	Author affiliation: Dept. d'Enginyeria Electron., Univ. Politecnica de Catalunya, Barcelona, Spain (Vidal, E.)
Abstract	The simple circuits that have been usually reported as triangular wave quadrature generators are based on conservative equations that do not properly describe the starting transient and the amplitude stabilization mechanism. As has been shown in a previous work, the slew-rate of the operational amplifier and the limited output voltage of the integrator are responsible for the starting and the stabilization of the generated waveforms. As an extension of this work, in this communication, a new simple circuit for generating triangular waves in quadrature is proposed. This circuit allows both obtaining the correct quadrature between the triangular waves and controlling their amplitude. This amplitude control is accomplished by the variation of a relation between resistors, thus allowing electronic control. Simulation results show good agreement with theoretical predictions.
Starting Page	348
Ending Page	351
File Size	556213
Page Count	4
File Format	PDF
ISBN	0818689145
DOI	10.1109/MWSCAS.1998.759503
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	1998-08-09
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Oscillators Circuits Delay effects Voltage Communication system control Propagation delay Operational amplifiers Strontium Equations Resistors
Content Type	Text
Resource Type	Article

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1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
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