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1364 articles for “top-down”
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Design of 8 Bit High Speed Pipelined ADC
Abstract: High-speed, medium-resolution, analog-to-digital converters (ADCs) are important building blocks in many electronic applications. The demand for high-speed, medium resolution, low power ADCs is satisfied by various ADC architectures like folding, flsubranging, pipeline etc. Of these, pipeline architecture has proven to be the most efficient for applications such as digital communication systems, data acquisition systems and video systems. Pipelined ADC offer attractive combination of high-speed, high-accuracy and low power consumption, which …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 2, 2015 · pp. 71–80 Read article
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A Novel 4:1 Multiplexer Design using Power Minimization Technique based Domino Logic
Abstract: Domino circuits are widely used these days in the design of modern-day microprocessors because of their high speed and less area overhead compared to static logic style. In this paper, a new domino-based 4:1 multiplexer circuit has been designed which finds extensive use in register files and execution units where large amounts of data have to be broken into smaller chunks so that the processor can manipulate it more easily …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 3, 2013 · pp. 1–7 Read article
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Design of Grounded Immittance Simulator using Single CDBA
Abstract: This paper proposes a grounded parallel immittance simulator using single current differencing buffered amplifier (CDBA). The proposed circuit realizes both parallel with R from the same topology. The properties and applications of the proposed circuit are verified using PSPICE simulation.
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 3, 2013 · pp. 8–14 Read article
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Methodology of Standard Cell Library Design in .LIB Format
Abstract: The importance of standard cell library design methodology is growing with very-large-scale integration (VLSI) technology advancement due to its usage in VLSI EDA synthesis flows. In this paper, to best of our knowledge and information in any published literature no systematic method of standard cell and creating appropriate co-laterals. In this paper the standard cell design methodology, layout topology, methodology for creating characterized timing table has been developed using 250 …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 1, 2014 · pp. 30–38 Read article
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A Survey on Recent Approaches for Leakage Power Reduction in MOS Integrated Circuits
Abstract: Today the integrated circuit’s functionalities are increasing day by day with increase in the number of transistors in it. However, the scaling of the transistors, top increase its number, for the same area of an IC reduces its sub-threshold voltage with its increase in the leakage power consumption. Scaling at different scales (45, 60, 90 nm, etc.) leads to major losses, both at static and dynamic phases of the circuits. …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 2, 2014 · pp. 24–31 Read article
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An Innovative Approach of the Analysis of the Low Noise of a CMOS-Based Amplifier for Analog Signal-based Applications
Abstract: A low-noise amplifier (LNA), which is based on the cascode feedback methodology, has been commonly used for various wireless protocol-based network applications nowadays. It is so because this topology ensures that the low-noise amplifier (LNA) can achieve quite a high performance and thus, provides a high qualitative output. This amplifier is operated with a low voltage supply in the range of few volts that requires that the impedances of the …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 7–15 Read article
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A New TGC-Differential Input Stage to Modify Dynamic Comparator
Abstract: As the technology rapidly scaling down, the escalating demand for higher accuracy is putting a heavy pressure to find ways to get rid of one of the major issues among present day dynamic comparators i.e. random offset voltage generation. A number of offset calibration techniques have been presented to resolve this issue. It has become an important concern to analyze these techniques for scaled down technology nodes to cop up …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 74–85 Read article
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Implementation and Simulation of High-Speed Dynamic Latch Comparator for ADC
Abstract: As per emerging issues in analog-mixed signal (AMS) design towards high-speed and low power, limits the performance of high-speed applications. Circuit complexity, speed, offset voltage and resolutions are essential parameter of comparator that affects the analog-to-digital converter (ADC) performance. Based on specifications, to achieve lower offset voltage and higher load drivability of latched comparator is presented. Moreover, the circuit is able to reduce power dissipation as the topology is based …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 2, 2016 · pp. 99–103 Read article
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Gain Controlled Sinusoidal Oscillator Using Current Controlled Current Conveyors
Abstract: A gain-controlled sinusoidal oscillator circuit based on current-controlled current conveyors (CCCII) is introduced. The circuit contains three CCCIIs and two grounded capacitors and no resistor. The amplitude of the output current can be controlled electronically. Hence, the proposed topology is suitable for IC implementation. The CCCII has been implemented using 0.35 μm CMOS technology and the PSPICE simulation results are given.
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 26–30 Read article
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An Outline of Receiver Device Or Gesture Device Components
Abstract: In the new era of computer science & language technology, Signal acknowledgement is a varied topic with the aim of taking human motions through mathematical algorithms. Signals can create from any physical motion or state then commonly initiate from the face or hand. Present emphases in the field comprise emotion acknowledgment from the face and hand motion response. Various methods have been completed using cameras and computer vision algorithms to …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 3, 2019 · pp. 21–25 Read article
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Methodical Strategy for STATCOMs Optimal Placement to Enhance Voltage Stability Margin Considering Circular Optimization Algorithm
Abstract: This study analyses voltage stability in the presence of STATCOM, focusing on the relationship between Voltage stability collapse and power system voltage stability. STATCOM and its optimal allocation are anticipated to enhance the voltage stability of the power system. Circular optimization algorithm is used to identify optimum sizing of STATCOM to increase voltage profile of the system. Practical simulation results are verified on IEEE 30 bus system considering multiple STATCOMs …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 2, 2021 · pp. 14–23 Read article
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Analysis of Three Phase AC-DC Front End Converter with Vector Control
Abstract: The revolution in power electronics has opened in last few years widespread use of power converters of different power rating from few Watts to Mega-Watts. 3 phase AC-DC converters (Controlled rectifier) are most widely used power converters as the distributed electric power is AC supply, while the applications based on DC supply as well as variable frequency AC supply, need conversion of AC supply into DC supply. Large current harmonics …
Published in Journal of VLSI Design Tools and Technology · Vol. 11, Issue 3, 2021 · pp. 19–30 Read article
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Performance analysis and implementation of 89C51 controller Based Solar Tracking System with Boost Converter
Abstract: Among the top issues in the modern day is electricity consumption minimization. Particularly in lighting purposes, electricity consumption minimization mode consumes 20% or so of all electricity produced. Often these conventional light bulbs have already been substituted by LEDs, which is an effective technique to cut energy use. The basic solar energy conversion element, the solar panel, is set at a specific angle and is unable to monitor the position …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 34–41 Read article
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Delta Sigma Fractional N Frequency Synthesis
Abstract: Frequency synthesizers are fast becoming essential for several broadcast bands and circuits as communication technology hasimproved. To meet this need, the fractional N frequency synthesizer was created. This synthesizer has proven its supremacy as a noteworthyinnovation by permitting various improvements over comparable concepts. Only when it is combined with delta-sigma modulation is thispossible. This combi- national circuit enhances frequency resolution and noise performance. PLL-based frequency synthesis is often used toproduce …
Published in Journal of VLSI Design Tools and Technology · Vol. 13, Issue 2, 2023 · pp. 12–20 Read article
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Geo-chemical Analysis of Arsenic in Medium Aquifers and Its Relation with Physical Parameters: A Study of Ballia District, India
Abstract: The main objective of this paper is to assess the spatial variation of arsenic (As) in medium aquifer and to relate it with surface elevation and slope generated using Shuttle Radar Topography Mission (SRTM) satellite data and water table. Water samples were collected in both pre- and post-monsoon season in 2011. The analysis of water samples for As were carried out by using atomic absorption spectrophotometer (AAS). Total 33 water …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 1, 2015 · pp. 38–50 Read article
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Adsorption Study using Water Hyacinth as an Adsorbent
Abstract: Heavy metals are widely used in numerous industries such as paints and pigments, glass production, mining operation, electroplating, battery manufacturing and textile industries. The significant losses of heavy metals occur during the manufacturing processes and these lost heavy metals are discharged in the effluent. As they move from one ecological trophic level to another, metallic species start damaging the ecosystem. They also become difficult to track as they move up …
Published in Journal of Water Resource Engineering and Management · Vol. 1, Issue 3, 2014 · pp. 13–16 Read article
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DESIGN OF SANITARY-STORM NETWORK USING SEWERGEMS: A CASE STUDY
Abstract: The paper presents an advanced modelling and the hydraulic design of underground sewerage system using different software, which allows model to complete in a short time, with high efficiency and low costs. Navi Mumbai was taken as a model for the study. The space under consideration was picked-up based on the present facility and preference was given in the need of sanitary facility. Bentley SewerGEMS CONNECT Series is only fully-dynamic, …
Published in Journal of Water Resource Engineering and Management · Vol. 7, Issue 1, 2020 · pp. 6–15 Read article
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Imperishable Sewage treatment plant - A case study of Surat, India
Abstract: In the 21st century, it is prominently observed that there is a major contamination of water resources in particular fresh water resources due to increase in the municipal, agricultural and industrial wastes. Moreover, in today's world, environmental pollution has become a hot topic. Water is becoming increasingly scarce, and many people fear that future conflicts will be fought over pure drinking water. Water scarcity not only causes problems for humans, …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 10–20 Read article
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Flood Resilient Land Use Planning for Gurugram
Abstract: Floods have become a common phenomenon in the fast urbanizing world as a consequence of accumulation of large amount of water in a particular area, either as a result of direct rainfall exceeding the capacity of drainage systems or a spill of enormous amounts of water from water bodies. Urbanization develops densely populous urban areas where the inhabitants suffer as a result of floods due to the reasons mentioned above, …
Published in Journal of Water Resource Engineering and Management · Vol. 9, Issue 3, 2022 · pp. 1–9 Read article
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EFFECT OF TIME ON THE HYDRAULIC PERFORMANCE OF WATER NETWORKS
Abstract: This paper discusses the results of a hydraulic simulation for the effect of time on the hydraulic performance of water networks. The case study area was defined and data about activities, water demand, and land topography was presented. WaterCAD software was used to design the water network using three different pipe materials: Steel, UPVC, and Concrete, based on water demands of the water nework joints in the year 2007. The …
Published in Journal of Water Resource Engineering and Management · Vol. 10, Issue 3, 2023 · pp. 29–44 Read article