The electronically tunable quadrature oscillator using a single multiple-output current controlled current differencing transconductance amplifier (MO-CCCDTA) and grounded passive components is presented. The proposed configuration uses a single MO-CCCDTA, two grounded capacitors and one grounded resistor. Two high-output impedance quadrature current signals and two quadrature voltage signals w...

A current mode variable frequency sinusoidal oscillator employing single differential difference current conveyor is proposed. The circuit uses two capacitors and three resistors which are minimum in number. The frequency of oscillation can be adjusted by a grounded resistor without disturbing the oscillation condition. The presented topology was synthesized using an innovative genetic algorith...

In this paper, we present for the first time a family of memristor-based reactance-less oscillators (MRLOs). The proposed oscillators require no reactive components, i.e., inductors or capacitors, rather, the “resistance-storage” property of memristor is exploited to generate the oscillation. Different types of MRLO family are presented and for each type, closed form expressions are derived for...

--High-performance digital circuits with aggressive timing constraints are usually very susceptible to delay faults. Much research done on delay fault detection needs a rather complicated test setup together with precise test clock requirements. In this paper, we propose a test technique based on the digital oscillation test method. The technique, which was simulated in software, consists of se...

When depressing synapses are embedded in a circuit composed of a pacemaker neuron and a neuron with no autorhythmic properties, the network can show two modes of oscillation. In one mode the synapses are mostly depressed, and the oscillations are dominated by the properties of the oscillating neuron. In the other mode, the synapses recover from depression, and the oscillations are primarily con...

A new approach for generating -scroll attractors is introduced. It is demonstrated that -scroll attractors can be generated using a simple sine or cosine function. A guideline is given so that a different number of scrolls can be designed easily by modifying two variables in the function. An electronic circuit is also designed for the implementation and the observation of a 9-scroll attractor i...

This article presents a novel current-mode universal biquadratic network providing both standard transfer functions. The principal element of proposed network is CCCCTAs. The feature of this network is that the pole frequency quality factor can be orthogonally adjusted via input bias currents. Besides performing as a universal filter, with an appropriate condition, the proposed network can func...

In this study, multimode chaos observed from two coupled chaotic oscillators with hard nonlinearities is investigated. At first, a simple chaotic oscillator with hard nonlinearities is realized. It is confirmed that in this chaotic oscillator the origin is always asymptotically stable and that the solution, which is excited by giving relatively large initial conditions, undergoes period-doublin...

This article presents a 3rd current-mode quadrature oscillator using current controlled current conveyor transconductance amplifier (CCCCTA) and operational transconductance amplifier (OTA) as active element as active elements. The proposed circuit is realized from a noninverting lossless integrator and an inverting second order low-pass filter. The oscillation condition and oscillation frequen...

This study describes the design of a multiphase sinusoidal oscillator (MSO) using CCCDTA-based allpass filters with grounded capacitors. The oscillation condition and oscillation frequency can be electronically/orthogonally controlled. The proposed MSO provides 2n (n  2) phase signals that are equally spaced in phase and equal amplitude. The circuit requires one CCCDTA, one electronic resistor...