 Conventional PLL design techniques used to implement CMOS GHz range clock recovery circuits typically suffer from significant power supply coupled noise in large integrated systems. This noise worsens the jitter of the PLL and degrades the system Bit-ErrorRate (BER). This paper describes an analog approach which applies fully differential current steering technique throughout the whole PLL sy...

reversible logic circuits have found emerging attentions in nanotechnology,optical computing, quantum computing and low power design. a programmablelogic array (pla) is a universal circuit which is used to implement combinationallogic circuits. the main part of a pla is its and array. in this study we propose twotypes of optimized reversible programmable logic array (rpla) circuits. the firstty...

Analog circuits have long been used to model the electrical properties of biological neurons. For example, the classic Hodgkin-Huxley model represents ion channels embedded in a neuron’s cell membrane as a capacitor in parallel with batteries and resistors. However, to match the predictions of the model with their empirical electrophysiological data, Hodgkin andHuxley described the nonlinear re...

We have studied experimentally the inverse system approach, which is used when we want to synchronize two chaotic systems (master – slave). We apply this method to a second order nonlinear circuit, which is described by a Duffing equation. We present two different implementations of the slave circuit with the inverse method and we demonstrate the possibility of synchronization when the two circ...

Frequency-domain distortion analysis is very important for designing the analog integrated circuits. We propose here a new method based on the Spice-oriented harmonic balance method, where the Fourier transformations of the resistive circuits driven by a periodic input are carried out by the Fourier transfer circuit model. The circuit is composed of the analog behavior models(ABM) of Spice, whi...

Problems Daniel Ioan, Irina Munteanu (IEEE members) and Cristian-George Constantin "POLITEHNICA" University of Bucharest, Numerical Methods Laboratory Electrical Engineering Dept. Spl. Independentei 313, 77206 Bucharest, Romania Abstract| The paper presents a new e cient technique to solve electromagnetic eld problems coupled with electric or electronic circuits. It is based on a post-processin...

The Markov random field (MRF) theory has been accepted as a highly effective framework for designing noise-tolerant nanometer digital VLSI circuits. In MRF-based design, proper feedback lines are used to control noise and keep the circuits in their valid states. However, this methodology has encountered two major problems that have limited the application of highly noise immune MRF-based circui...

We investigate the effect of coupling delays on the synchronization properties of several network motifs. In particular, we analyze the synchronization patterns of unidirectionally coupled rings, bidirectionally coupled rings, and open chains of Kuramoto oscillators. Our approach includes an analytical and semianalytical study of the existence and stability of different in-phase and out-of-phas...

This paper and its associated Python programs explore the dynamics of single electron tunneling junction (SETJ) circuits. SETJs can potentially be used as nonlinear circuit elements to implement new paradigms for information processing. I show that an isolated SETJ circuit with a constant bias voltage and sinusoidal pump offset can produce a variety of interesting nonlinear behavior. By adjusti...

Controlling chaos has attracted a growing interest in the field of nonlinear science [Fradkov & Pogromsky, 1998; Chen & Dong, 1998]. Pyragas proposed a delayed feedback control (DFC) method [Pyragas, 1992], which does not require a reference signal corresponding to the desired unstable periodic orbits. The DFC method has been widely applied to real systems, since it is a practical scheme for ex...