Excitable behavior of an operational amplifier

C. M. Kim; G. S. Yim; J. W. Ryu; Y. J. Park; D. U. Hwang

doi:10.1209/epl/i2004-10547-0

Excitable behavior of an operational amplifier

C. M. Kim
, G. S. Yim
, J. W. Ryu
, Y. J. Park
, D. U. Hwang

Department of Physics and Chemistry

Research output: Contribution to journal › Article › peer-review

1 Scopus citations

Abstract

We find excitable behavior in an operational amplifier (OPA27). When an output terminal is connected to an inverting input terminal through a resistor and a positive input terminal is connected to the ground, the simple electronic circuit exhibits a transition from a steady state to a relaxation oscillation state through quasi-harmonic and excitable pulsation states as the positive and the negative power supply voltages are varied. The observed distribution of the excitable pulsation intervals shows that the pulsations are phase-locked with the internal quasi-harmonic oscillation.

Original language	English
Pages (from-to)	723-729
Number of pages	7
Journal	Europhysics Letters
Volume	71
Issue number	5
DOIs	https://doi.org/10.1209/epl/i2004-10547-0
State	Published - 1 Sep 2005

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AU - Hwang, D. U.

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N2 - We find excitable behavior in an operational amplifier (OPA27). When an output terminal is connected to an inverting input terminal through a resistor and a positive input terminal is connected to the ground, the simple electronic circuit exhibits a transition from a steady state to a relaxation oscillation state through quasi-harmonic and excitable pulsation states as the positive and the negative power supply voltages are varied. The observed distribution of the excitable pulsation intervals shows that the pulsations are phase-locked with the internal quasi-harmonic oscillation.

AB - We find excitable behavior in an operational amplifier (OPA27). When an output terminal is connected to an inverting input terminal through a resistor and a positive input terminal is connected to the ground, the simple electronic circuit exhibits a transition from a steady state to a relaxation oscillation state through quasi-harmonic and excitable pulsation states as the positive and the negative power supply voltages are varied. The observed distribution of the excitable pulsation intervals shows that the pulsations are phase-locked with the internal quasi-harmonic oscillation.

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JO - Europhysics Letters

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Excitable behavior of an operational amplifier

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