Improved harmonic analysis of RC-active phase shift oscillators

John Taylor; Christopher Clarke

doi:10.1109/ISCAS.2008.4541657

Improved harmonic analysis of RC-active phase shift oscillators

John Taylor, Christopher Clarke

Department of Electronic & Electrical Engineering

Research output: Contribution to conference › Paper › peer-review

3 Citations (SciVal)

Abstract

This paper describes an improved method for calculating the harmonic distortion content of active-RC phase shift oscillators. The proposed method introduces the truncated harmonic transfer function (THTF) which is related to the two-sinusoidal-input describing function (TSIDF) of non-linear control theory. This allows accurate calculation of the distortion terms in oscillator systems containing higher signal levels and therefore higher levels of nonlinearity than is possible with conventional methods. Although the method is quite general in its application, in this paper it is demonstrated using examples employing the Wien RC-bandpass oscillator with a quadratic nonlinearity.

Original language	English
Pages	1272-1275
DOIs	https://doi.org/10.1109/ISCAS.2008.4541657
Publication status	Published - 2008
Event	IEEE International Symposium on Circuits and Systems (ISCAS 2008) - Seattle, WA, USA United States Duration: 18 May 2008 → 21 May 2008

Conference

Conference	IEEE International Symposium on Circuits and Systems (ISCAS 2008)
Country/Territory	USA United States
City	Seattle, WA
Period	18/05/08 → 21/05/08

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10.1109/ISCAS.2008.4541657

Cite this

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title = "Improved harmonic analysis of RC-active phase shift oscillators",

abstract = "This paper describes an improved method for calculating the harmonic distortion content of active-RC phase shift oscillators. The proposed method introduces the truncated harmonic transfer function (THTF) which is related to the two-sinusoidal-input describing function (TSIDF) of non-linear control theory. This allows accurate calculation of the distortion terms in oscillator systems containing higher signal levels and therefore higher levels of nonlinearity than is possible with conventional methods. Although the method is quite general in its application, in this paper it is demonstrated using examples employing the Wien RC-bandpass oscillator with a quadratic nonlinearity.",

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AU - Clarke, Christopher

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AB - This paper describes an improved method for calculating the harmonic distortion content of active-RC phase shift oscillators. The proposed method introduces the truncated harmonic transfer function (THTF) which is related to the two-sinusoidal-input describing function (TSIDF) of non-linear control theory. This allows accurate calculation of the distortion terms in oscillator systems containing higher signal levels and therefore higher levels of nonlinearity than is possible with conventional methods. Although the method is quite general in its application, in this paper it is demonstrated using examples employing the Wien RC-bandpass oscillator with a quadratic nonlinearity.

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U2 - 10.1109/ISCAS.2008.4541657

DO - 10.1109/ISCAS.2008.4541657

M3 - Paper

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EP - 1275

T2 - IEEE International Symposium on Circuits and Systems (ISCAS 2008)

Y2 - 18 May 2008 through 21 May 2008

ER -

Improved harmonic analysis of RC-active phase shift oscillators

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