A Novel Floating/Grounded Meminductor Emulator

Meminductor is a nonlinear two-terminal element with storage energy and memory ability. To date, meminductor element is not available commercially as memristor and memcapacitor are. Therefore, it is of great significance to implement a meminductor emulator for breadboard experiment. In this paper, a flux-controlled floating/grounded meminductor emulator without a memristor is presented. It is built with commercially available off-the-shelf electronic devices. It consists of single operational transconductance amplifier (OTA), single multiplier, two second-generation current conveyors (CCIIs), single current-feedback operational amplifier (CFOA) and single operational amplifier. Using OTA device introduces an additional control parameter besides frequency and amplitude values of applied voltage to control the area of pinched hysteresis loop of meminductor. Mathematical model of proposed emulator circuit is given to describe the behavior of meminductor circuit. The breadboard experiment is performed using CA3080, AD844, AD633J and LM741 for OTA, CCII–CFOA, multiplier and operational amplifier, respectively. Simulation and experimental test results are given to verify the theoretical analyses. Frequency-dependent pinched hysteresis loop is maintained up to 5 kHz. The presented meminductor emulator tends to work as ordinary inductor for higher frequencies.

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Synthesis of a Novel Low-Component Programmable Sinusoidal Oscillator

Active and Passive Electronic Components ◽

10.1155/apec.26.31 ◽

2003 ◽

Vol 26 (1) ◽

pp. 31-36 ◽

Cited By ~ 4

Author(s):

Muhammad Taher Abuelma'atti ◽

Sa'ad Muhammad Al-Shahrani

Keyword(s):

Excellent Agreement ◽

Operational Amplifier ◽

Operational Transconductance Amplifier ◽

Current Feedback ◽

Transconductance Amplifier ◽

Sinusoidal Oscillator ◽

Current Feedback Operational Amplifier ◽

Synthesis Approach

A novel circuit is presented for realizing a sinusoidal oscillator. The proposed circuit, developed through a true synthesis approach, uses one current-feedback operational amplifier (CFOA), one operational transconductance amplifier (OTA), three grounded capacitors and one floating resistor. The proposed circuit enjoys several attractive features. Practical results, in excellent agreement with the presented theory, are included.

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A New Floating Memristance Simulator Circuit Based on Second Generation Current Conveyor

Journal of Circuits System and Computers ◽

10.1142/s0218126617500293 ◽

2016 ◽

Vol 26 (02) ◽

pp. 1750029 ◽

Cited By ~ 26

Author(s):

Zehra Gulru Cam ◽

Herman Sedef

Keyword(s):

Hysteresis Loop ◽

Second Generation ◽

Current Conveyor ◽

Experimental Results ◽

Current Conveyors ◽

Frequency Range ◽

Passive Element ◽

Exciting Frequency ◽

Pinched Hysteresis Loop ◽

Pinched Hysteresis

In this paper, a new floating analog memristance simulator circuit based on second generation current conveyors and passive elements is proposed. Theoretical derivations are presented which decribe the circuit characteristics. The hardware of proposed simulator circuit is built using commercially available components. Theoretical derivations are validated with PSPICE simulation and experimental results. Performance of circuit was tested with simple example circuits. All results show that proposed simulator circuit provides frequency dependent pinched hysteresis loop and nonvolatility features. Exciting frequency, minimum and maximum memristance values and memristance range can be adjustable with simple passive element values. Simulator circuit has a frequency range of 1[Formula: see text]Hz to 40[Formula: see text]kHz.

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Comparative Study of Resistorless Filters Using Differential Voltage Current Controlled Current Feedback Operational Amplifiers and Differential Voltage Current Controlled Current Conveyors

ISRN Electronics ◽

10.1155/2013/910170 ◽

2013 ◽

Vol 2013 ◽

pp. 1-7 ◽

Cited By ~ 2

Author(s):

Costas Laoudias ◽

Costas Psychalinos

Keyword(s):

Process Design ◽

Operational Amplifier ◽

Active Element ◽

Cmos Process ◽

Current Conveyors ◽

Current Feedback ◽

Differential Voltage ◽

Current Feedback Operational Amplifiers ◽

Current Feedback Operational Amplifier ◽

Controlled Current Conveyors

Differential Voltage Current Controlled Current Feedback Operational Amplifier is an attractive active element for realizing resistorless filters with a minimum active component count. This is verified through a design example, where a 3rd-order leapfrog filter has been realized using the AMS 0.35 μm CMOS process design kit. The performance of the Differential Voltage Current Controlled Current Feedback Operational Amplifier filter is evaluated and compared with that obtained by the corresponding filter, where Differential Voltage Current Controlled Current Conveyors have been employed.

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Novel Meminductor Emulators Using Operational Amplifiers and their Applications in Chaotic Oscillators

Journal of Circuits System and Computers ◽

10.1142/s0218126621502194 ◽

2021 ◽

pp. 2150219

Author(s):

Aneet Singh ◽

Shireesh Kumar Rai

Keyword(s):

Hysteresis Loop ◽

Operational Amplifier ◽

Experimental Results ◽

Operational Amplifiers ◽

Chaotic Oscillator ◽

Chaotic Oscillators ◽

Wide Range ◽

Pinched Hysteresis Loop ◽

Simulation Results ◽

Pinched Hysteresis

This paper presents six different meminductor emulator circuits based on operational amplifiers. Five circuits of meminductor emulators have been proposed using two operational amplifiers, one memristor, three resistors and one capacitor, whereas the sixth circuit uses two operational amplifiers, two memristors, one resistor and two capacitors. All circuits of the proposed meminductor emulators are very simple over most of the realizations of meminductor emulators in the literature. The behaviors of meminductor emulators are satisfactory over a wide range of frequencies. The proposed configurations of meminductor emulators have been simulated by the LTspice tool. The SPICE models of both operational amplifier (AD711) and memristor have been used for simulation. The workability of the proposed meminductor emulators has also been verified using the basic and well-known structure of operational amplifier. In addition, the pinched hysteresis loop obtained by the simulation results of meminductor emulator has been achieved by the experimental results as well. Chaotic oscillator has been designed using the proposed meminductor emulator to prove the worthiness of the design.

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