The paper illustrates the advantages of silicon implementation of a VLSI design representing a complete control system for an electric drive, using electronicdesign Automation (EDA) techniques for the design, simulat...
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The paper illustrates the advantages of silicon implementation of a VLSI design representing a complete control system for an electric drive, using electronicdesign Automation (EDA) techniques for the design, simulation, verification and layout. The implementation of a modern machine control strategy requiring high speed calculation into Application Specific Integrated circuits (ASICs) is described. The design of the control system from ASICs to the complete system commissioning together with test results is presented.
A CA tool to model the behavior of systems using fuzzy identification is presented. The works consist in a class and functions library programmed in object-oriented C++, which construct fuzzy models starting from an i...
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A CA tool to model the behavior of systems using fuzzy identification is presented. The works consist in a class and functions library programmed in object-oriented C++, which construct fuzzy models starting from an input/output data set obtained from analytic models or experimental results. These fuzzy models can be both, used and evaluated by other programs and its computational speed will be faster than other kind of behavioral approaches because these do not need to use complicate interpolation and extraction algorithms.
A new adiabatic structure is presented. This circuit uses only one NMOS transistor for precharge instead of two diodes as in previous circuits. Comparisons with previous circuits were carried out in terms of power dis...
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A new adiabatic structure is presented. This circuit uses only one NMOS transistor for precharge instead of two diodes as in previous circuits. Comparisons with previous circuits were carried out in terms of power dissipation, operating frequency and layout area. The results show that the proposed circuit can save around 20% of area in layout implementation with comparable power savings. The advantages of the proposed circuit have been confirmed by HSPICE simulations and layout design.
Neural circuitry within the spinal cord of the lamprey, a primitive vertebrate, can generate self-sustained oscillations for locomotion (swimming). This pattern generator can be modeled as a chain of oscillatory unit ...
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Neural circuitry within the spinal cord of the lamprey, a primitive vertebrate, can generate self-sustained oscillations for locomotion (swimming). This pattern generator can be modeled as a chain of oscillatory unit pattern generator segments. In this paper, the design and implementation of an analog electronic circuit which mimics the behavior of such a unit pattern generator of the lamprey is presented. The circuitry mimics a neural network containing 6 neurons with simplified biophysical properties. The analog circuit is capable of generating stable oscillatory output at different frequencies with the appropriate phase relationships among the different neural outputs. This work is the first in a series of circuitsdesigned to have possible applications in neuroscience research and in the development of artificial locomotor systems.
作者：
Siek, LiterBhatt, AnsuyaNanyang Technological University
Sch. of Elec. and Electronic Eng. Div. of Circuits and Systems Block S2 Nanyang Avenue Singapore 639798 Singapore VLSI
Circuit Design and Test Dept. Institute of Microelectronics 11 Science Park Road SSP II Singapore 117685 Singapore
A high speed ADC that does not consume much power and silicon area, suitable for embedded application will be presented. The proposed paper will describe an 8-bit folding cum interpolation ADC.
A high speed ADC that does not consume much power and silicon area, suitable for embedded application will be presented. The proposed paper will describe an 8-bit folding cum interpolation ADC.
This paper presents a third-order sigma-delta analog-to-digital converter (ADC) employing a multistage architecture. The converter is a cascade of two-sigma-delta modulators with the first-stage being a second-order m...
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This paper presents a third-order sigma-delta analog-to-digital converter (ADC) employing a multistage architecture. The converter is a cascade of two-sigma-delta modulators with the first-stage being a second-order modulator and the second-stage being a first-order modulator. Simulation shows the architecture could achieve 99 dB SNR with input frequency of 1 kHz at a sampling frequency of 2.82-MHz. The converter is implemented in a 0.8-μm CMOS technology operating from a single 3-V supply.
We present in this paper an integrated approach of incorporating the built-in current sensor (BICS) and totally self-checking (TSC) circuits such that the overall design can provide both current and logic testing. Bas...
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We present in this paper an integrated approach of incorporating the built-in current sensor (BICS) and totally self-checking (TSC) circuits such that the overall design can provide both current and logic testing. Based on this approach, a novel test generation scheme for two-rail checkers that can detect not only all multiple stuck-at faults, but including the transistor bridging faults as well.
This paper reports the mathematical model of the response characteristics of Motorola 1100 model micro CO gas sensor based on experiments. Gas sensors lack stability, sensitivity and selectivity due to many reasons. M...
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This paper reports the mathematical model of the response characteristics of Motorola 1100 model micro CO gas sensor based on experiments. Gas sensors lack stability, sensitivity and selectivity due to many reasons. Methods of characterization have to be developed to understand the effects of ambient temperature, humidity, other target gases and sensing temperature for quantitative and reliable gas detection. A model incorporating all the variables affecting the conductance of the sensing surface is required for the design of gas instrumentation. Such a theoretical model in predicting reliably the conductance behaviour of gas sensors is reported and tested with the experimental results over the entire sensing range.
What does technology hold in store for us in the second half century of the transistor's existence? Fueled by exponential growth in the capabilities of electronic circuitry and the communications fabrics which int...
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What does technology hold in store for us in the second half century of the transistor's existence? Fueled by exponential growth in the capabilities of electronic circuitry and the communications fabrics which interconnect them, we can look forward to a world of pervasive interconnection, customized products and services, much help with complexity, and exciting new appliances. Not many individual surprises here, but the totality of what looms likely just one human generation from today amounts to little less than a fantasy world. "Be careful what you wish for," an old adage goes, "you may get it." With unprecedented power in human hands, wishes in tomorrow's world will likely come true almost too easily. Anything we conceive of is likely to work perfectly, at least as measured by the specifications of its design. The real measure of success will come from how well it works with the needs of its users, other technology and the human environment.
This paper describes how qualitative reasoning, functional reasoning and knowledge compilation can be combined to tackle the problem of analogue circuit design automation. A structure-behaviour-function semi-quantitat...
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This paper describes how qualitative reasoning, functional reasoning and knowledge compilation can be combined to tackle the problem of analogue circuit design automation. A structure-behaviour-function semi-quantitative model is proposed as a means of capturing the cognitive aspects of the human design process.
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