The performance of integrated circuits has been improving exponentially for more than thirty years. During the next decade, the industry must overcome several technological challenges to sustain this remarkable pace of improvement. Challenges in lithography, transistor scaling, interconnections, circuit families, computer memory, and circuit design are outlined. Possible solutions are briefly d...

Abstract. We exhibit a quantum circuit that performs the Quantum Fourier Transform on n qubits in O(n) depth. Thus, a parallel quantum computer can carry out the QFT in linear time. Griffiths and Niu have already shown this, so this paper is little more than an exercise in quantum circuit design; but perhaps it illustrates a worthwhile idea. We also speculate as to whether the QFT might be in t...

This work presents the development of a transistorlevel circuit model of the LM124 operational amplifier specifically engineered and calibrated for analog single-event transient (ASET) computer simulations. The techniques presented rely heavily on datasheet specifications for electrical parameterization and experimental laser probing for dc and transient calibration. The resulting circuit model...

It is presently shown that the Deutsch-Jozsa algorithm connected to concept of bent function. Particularly, it noticeable quantum circuit used denote well-known by itself computer performs Walsh transform a Boolean Consequently, output from when hidden function corresponds flat spectrum states.

In recent years there has been much pressure placed on system designers to verify their designs with computer simulations before committing to actual printed circuit board layouts and hardware. Simulating complex digital designs is extremely beneficial, and very often, the prototype phase can be eliminated entirely. However, bypassing the prototype phase in high-speed/high-performance analog or...

The approach to computer aided hierarchical circuit design on the base of univariate algorithms was derived by the analysing the mathematical principles behind recombination. In this paper it is considered how to introduce mutation in this approach. A number of experiments applied to circuit design are discussed. Experiments indicate that mutation and elitism increase the performance of the alg...

The exact electroanatomic circuit responsible for atrioventricular nodal reentrant tachycardia (AVNRT) remains poorly understood. Initially, the pathological substrate was thought to be a small reentry circuit within the compact AV node (AVN).1 However, through a series of detailed histological studies,2 computer modeling,3 optical mapping,4 and uniquely insightful observations of tachycardia b...

In this paper we describe by a number of examples how to deduce one single characterizing higher order differential equation for output quantities of an analog circuit. In the linear case, we apply basic ”symbolic” methods from linear algebra to the system of differential equations which is used to model the analog circuit. For nonlinear circuits and their corresponding nonlinear differential e...

this paper presents a new arc starter circuit that is usable in manual metal arc welding (mma) power supplies. the proposed circuit uses an auxiliary circuit and a series coupling transformer for adding high frequency spikes to output dc voltage during arc striking. the proposed circuit is usable in inverter based arc welding supplies and it could result in a decrease of weigh, volume and expen...

Abstract In this paper we propose a new compact static delay model for latch-based CMOS Threshold logic gates. The particular effects captured by the model are: the dependency of the delay on threshold (data) values and the dependency of the delay vs. capacitive loading. The model parameters were extracted from several Threshold logic gate setups and the delay predicted by the model for a compu...