A Realization of Third-Order CR Oscillator Using D-R Mutator

Katsuji IKEDA; Yasushi TOMITA

A Realization of Third-Order CR Oscillator Using D-R Mutator

Katsuji IKEDA, Yasushi TOMITA

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This paper proposes a circuit configuration for realizing third-order CR oscillator, and studies its oscillation characteristics. It is shown that the oscillator can be realized by using an inverter type D-R mutator, transforming a resistor into a frequency dependent negative conductance with Ys²D, and a positive type second generation current conveyor as a noninverting amplifier. Since the inverter type D-R mutator consists of two current conveyors which are basically voltage controlled current sources, an analysis has been carried out based on actual characteristics of current conveyors and an equivalent circuit has been derived. The oscillation condition of oscillator circuit consisting of D-R mutator and noninverting amplifier is derived. The frequency of oscillation of this oscillator is tunable over a wide range by single grounded resistor, and the condition of oscillation is shown to be very simple. Theoretical and experimental results have been compared and discussed, and usefulness of proposed circuit is confirmed.

Publication: IEICE TRANSACTIONS on transactions Vol.E71-E No.1 pp.51-55

Publication Date: 1988/01/25

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Type of Manuscript: PAPER

Category: Electronic Circuits

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Katsuji IKEDA
Yasushi TOMITA

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Katsuji IKEDA, Yasushi TOMITA, "A Realization of Third-Order CR Oscillator Using D-R Mutator" in IEICE TRANSACTIONS on transactions, vol. E71-E, no. 1, pp. 51-55, January 1988, doi: .
Abstract: This paper proposes a circuit configuration for realizing third-order CR oscillator, and studies its oscillation characteristics. It is shown that the oscillator can be realized by using an inverter type D-R mutator, transforming a resistor into a frequency dependent negative conductance with Ys²D, and a positive type second generation current conveyor as a noninverting amplifier. Since the inverter type D-R mutator consists of two current conveyors which are basically voltage controlled current sources, an analysis has been carried out based on actual characteristics of current conveyors and an equivalent circuit has been derived. The oscillation condition of oscillator circuit consisting of D-R mutator and noninverting amplifier is derived. The frequency of oscillation of this oscillator is tunable over a wide range by single grounded resistor, and the condition of oscillation is shown to be very simple. Theoretical and experimental results have been compared and discussed, and usefulness of proposed circuit is confirmed.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e71-e_1_51/_p

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@ARTICLE{e71-e_1_51,
author={Katsuji IKEDA, Yasushi TOMITA, },
journal={IEICE TRANSACTIONS on transactions},
title={A Realization of Third-Order CR Oscillator Using D-R Mutator},
year={1988},
volume={E71-E},
number={1},
pages={51-55},
abstract={This paper proposes a circuit configuration for realizing third-order CR oscillator, and studies its oscillation characteristics. It is shown that the oscillator can be realized by using an inverter type D-R mutator, transforming a resistor into a frequency dependent negative conductance with Ys²D, and a positive type second generation current conveyor as a noninverting amplifier. Since the inverter type D-R mutator consists of two current conveyors which are basically voltage controlled current sources, an analysis has been carried out based on actual characteristics of current conveyors and an equivalent circuit has been derived. The oscillation condition of oscillator circuit consisting of D-R mutator and noninverting amplifier is derived. The frequency of oscillation of this oscillator is tunable over a wide range by single grounded resistor, and the condition of oscillation is shown to be very simple. Theoretical and experimental results have been compared and discussed, and usefulness of proposed circuit is confirmed.},
keywords={},
doi={},
ISSN={},
month={January},}

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TY - JOUR
TI - A Realization of Third-Order CR Oscillator Using D-R Mutator
T2 - IEICE TRANSACTIONS on transactions
SP - 51
EP - 55
AU - Katsuji IKEDA
AU - Yasushi TOMITA
PY - 1988
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E71-E
IS - 1
JA - IEICE TRANSACTIONS on transactions
Y1 - January 1988
AB - This paper proposes a circuit configuration for realizing third-order CR oscillator, and studies its oscillation characteristics. It is shown that the oscillator can be realized by using an inverter type D-R mutator, transforming a resistor into a frequency dependent negative conductance with Ys²D, and a positive type second generation current conveyor as a noninverting amplifier. Since the inverter type D-R mutator consists of two current conveyors which are basically voltage controlled current sources, an analysis has been carried out based on actual characteristics of current conveyors and an equivalent circuit has been derived. The oscillation condition of oscillator circuit consisting of D-R mutator and noninverting amplifier is derived. The frequency of oscillation of this oscillator is tunable over a wide range by single grounded resistor, and the condition of oscillation is shown to be very simple. Theoretical and experimental results have been compared and discussed, and usefulness of proposed circuit is confirmed.
ER -