A Coupled Memcapacitor Emulator-Based Relaxation Oscillator

This brief proposes a floating emulator circuit for mimicking the dynamic behaviors of flux coupled memcapacitors (MCs) by making use of common off-the-shelf active devices. The equivalent constitutive relation of the coupled MC emulators is theoretically presented in details. The coupled MCs are th...

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Bibliographic Details
Published inIEEE transactions on circuits and systems. II, Express briefs Vol. 63; no. 12; pp. 1101 - 1105
Main Authors Yu, Dongsheng, Zhou, Zhi, Iu, Herbert Ho-Ching, Fernando, Tyrone, Hu, YiHua
Format Journal Article
LanguageEnglish
Published New York IEEE 01.12.2016
The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subjects
Circuits
Constitutive relationships
Controllability
Coupling
Couplings
Emulators
Hardware
Mathematical model
memcapacitor (MC) emulator
Operational amplifiers
Oscillators
relaxation oscillator (RO)
Relaxation oscillators
Voltage control
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Summary:This brief proposes a floating emulator circuit for mimicking the dynamic behaviors of flux coupled memcapacitors (MCs) by making use of common off-the-shelf active devices. The equivalent constitutive relation of the coupled MC emulators is theoretically presented in details. The coupled MCs are then utilized to structure new relaxation oscillators (ROs) with the purpose of achieving controllable oscillation frequency and duty cycle. In consideration of different parameter configuration cases, an experimental investigation is carried out using a practical circuit emulating the dual coupled MCs and the ROs. Good agreement between experimental and theoretical results confirms that dual coupled MCs can be utilized to structure ROs with controllability.
ISSN:1549-7747
1558-3791
DOI:10.1109/TCSII.2016.2613179