Motor-CAD software is the unique software for the analytical lumped circuit thermal network analysis of electric motors. Motor-CAD is used by many of the most successful motor manufacturers to optimise the cooling of various motor types and cooling methods. At INDUCTICA 2009, Motor Design Ltd (MDL) presented a paper explaining the development of the Motor-CAD software, detailing the mathematics...

3D Circuits are one of the most promising technologies for reducing wire lengths [1] and improving circuit power [2] and timing [3] for future high performance designs. On a 3D VLSI Circuit, tiers of active area are stacked, providing higher integration density, shrinking the distances between the cells and reducing wire lengths as a consequence. In order to take full benefit of the technology,...

An accurate and computer efficient analytical model for the evaluation of integrated circuit sensitivity to radiation induced single event transients is presented. The key idea of the work is to exploit a model that allows the rapid determination of the sensitivity of any MOS circuit to single event transients (SETs), without the need to run circuit level simulations. To accomplish this task, b...

A new analytical modelling approach to evaluate the impact of single event transients (SETs) on CMOS circuits has been developed. The model allows evaluation of transient pulse amplitude and width (duration) at the logic level, without the need to run circuit level (Spice-like) simulations. The SET mechanism in MOS circuits is normally investigated by Spice-like circuit simulation. The problem ...

This paper presents the procedures involved in design and analysis of a microstrip broadband microwave amplifier. For system design, simulation, optimization analysis, Computer Aided Design (CAD) tool know as Agilent Advanced System (ADS) was employed. The amplifier device- FLC317MG-4 FET, tested for stability, observed to be unconditionally stable between 2 6 GHz frequency band. Two possible i...

Optimization and query problems provide the best clear opportunity for configurable computing systems to achieve a significant performance advantage over ASICs. Programmable hardware can be optimized to solve a specific problem instance that only needs to be solved once, and the circuit can be thrown away after its single execution. This paper investigates the applicability of this technology t...

Standard tools for CAD have limited modes of the sensitivity analysis: PSPICE only contains a static mode and SPECTRE includes frequency-domain and static modes. However, many RF systems use symmetrical structures for enhancing the circuit properties. For such systems, the static sensitivities are zero on principle and hence the time-domain sensitivity analysis should be used. In the paper, a n...

by Eric W. Johnson With the development of improved fabrication processes, more responsibility is placed on circuit designers to develop circuits that are tolerant of fluctuations in the fabrication process. To achieve this higher reliability, designers must have access to actual data variations in the fabrication process. Historically, this process data has been collected from test measurement...

In this paper we introduce a new subthreshold conduction CAD model for simulation of VLSI subthreshold CMOS analog circuits and systems. This model explicitly formulates the back-gate bias effect and preserves the original advantages of the existing four-parameter model while reducing the fitting parameter number down to three. A transparent relationship between the fitting parameters and the p...