Journal
AEU-INTERNATIONAL JOURNAL OF ELECTRONICS AND COMMUNICATIONS
Volume 69, Issue 9, Pages 1208-1219Publisher
ELSEVIER GMBH
DOI: 10.1016/j.aeue.2015.05.003
Keywords
Memristor emulator; Pinched hysteresis loop; Nonlinear resistor; Current conveyor
Funding
- National Council for Science and Technology (CONACyT), Mexico [222843, 181201]
- Universidad Autnoma de Tlaxcala (UAT), Tlaxcala de Xicohtencatl, IL, Mexico [UAT-121AD-R, CACyPI-UATx-2014]
- PROMEP, Mexico [PROMEP-UPPue-PTC-047]
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This paper reports experimental tests of a memristor emulator circuit employing a double output second generation current conveyor, a four quadrant analog multiplier, a capacitor and two resistors. First, the behavioral model of the proposed emulator circuit is derived, including parasitic elements and exhibiting that the memristance of a charge-controlled memristor is modeled as a first-order function. Subsequently, an analysis on the frequency performance is done, showing not only that the frequency-dependent pinched hysteresis loop in the current-versus-voltage plane holds up to 160 kHz, but a guideline for choosing the numerical values of the passive elements according to the desired operating frequency is also given. Afterwards, the emulator circuit is built with commercially available devices, confirming good agreement among theoretical simulations, HSPICE results and experimental tests. Furthermore, we show that by using a simple switch, the emulator circuit can be configured as decremental or incremental memristor in order to be used in future applications such as sensors, cellular neural networks, chaotic systems, programmable analog circuits and nonvolatile memory devices. (C) 2015 Elsevier GmbH All rights reserved.
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