A new fuzzy based method to compute the initial parameter values for the optimization design phase of electronic circuits is presented. A Mamdani type fuzzy system models the relations expressing the dependencies between circuit parameters and circuit functions. This fuzzy system is able to compute the values of design parameters for every set of design requirements. This way, the optimization ...

High Performance Continuous-time Filters for InformationTransfer Systems. (August 2003)Ahmed Nader Mohieldin, B.Sc., Cairo University, Egypt;M.Sc., Cairo University, Egypt;Chair of Advisory Committee: Dr. Edgar Sánchez-Sinencio Vast attention has been paid to active continuous-time filters over the years. Thus asthe cheap, readily available integrated circuit OpAmps replaced...

A silicon neuron circuit that produces spiking and bursting firing patterns, with biologically plausible spike shape, is presented. The circuit mimics the behaviour of known classes of cortical neurons: regular spiking (RS), fast spiking (FS), chattering (CH) and intrinsic bursting (IB). The paper describes the operation of the circuit, provides simulation results, a simplified analytical model...

Consider a variant of the graph diameter of a polyhedron where each step in a walk between two vertices travels maximally in a circuit direction instead of along incident edges. Here circuit directions are non-trivial solutions to minimally-dependent subsystems of the presentation of the polyhedron. These can be understood as the set of all possible edge directions, including edges that may ari...

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. The same is not true for most analog circuits. While simulation can give a grea...

The relatively new field of Evolvable Hardware studies how simulated evolution can reconfigure, adapt, and design hardware structures in an automated manner. Space applications, especially those requiring autonomy, are potential beneficiaries of evolvable hardware. For example, robotic drilling from a mobile platform requires high-bandwidth controller circuits that are difficult to design. In t...

An approach of the worst case analysis of the analog electronic circuits based on the circuit description in parameter space is proposed. A DC, AC or transient worst-case analysis can be performed only testing the circuit for the vertices of a polytope in conjunction with a circuit simulator or computational environment. In order to validate and show the effectiveness of this approach, DC worst...

Analog and mixed-signal integrated circuits are rapidly becoming more complex. In addition to the traditional problems associated with testing ICs, such as limited controllability and observability, analog and mixed-signal test is vulnerable to measurement induced errors. Constraints on measuring analog signals signiicantly increase the complexity and cost of testers for such circuits. In this ...

A new methodology for understanding single-event transient (SET) phenomena in analog circuits is described. Device and circuit simulation techniques are coupled in order to reproduce experimental data obtained from the National Semiconductor LM124 operational amplifier and to determine the most sensitive parts of the integrated circuit. Experimental data obtained at the Physical Nuclear Institu...

Depending on your expectations or claims, mixed-signal BIST could be either fact or fiction. Recognizing facts from fiction is key for the industry to successfully deploy mixed-signal BIST potentials. Is Mixed-Signal-BIST Feasible? Despite the general consensus that considers mixed-signal BIST as a relatively new technology, it has been used as part of high-performance analog design process for...