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603 articles for “bit-banged PWM”
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An Area Delay Optimized Carry-Select Adder
Abstract: In arithmetic and logic unit of digital signal processor (DSP), adder is the important hardware unit. Carry select adder (CSLA) is the best example of the adder used in DSP and it is widely used in many data processors to increase speed. So, the adder performance affects the overall system-performance. The Regular Square root (SQRT) CSLA consists of two Ripple Carry Adders (RCA), so it consumes more area due to …
Published in Journal of VLSI Design Tools and Technology · Vol. 8, Issue 3, 2018 · pp. 10–14 Read article
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Which is the Best 10T Static CMOS Full Adder for Ultralow-Power Applications?
Abstract: This paper presents the analysis of various 10-transistor CMOS 1-bit full adder circuits in terms of their output levels and finds out the suitable adder cell at 200 mV in subthreshold region at 16-nm technology node for ultra-low power applications. This paper also provides worst case output levels (sum and carry) of all the analyzed adder cells (which are presented in the paper) for various input combinations.Keywords: CMOS, carry, 2:1 …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 1, 2015 · pp. 45–50 Read article
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Reducing Crosstalk in Arithmetic and Logic Unit Part of a Processor
Abstract: Crosstalk is common in any digital systems and may occur due to coupling of signals which eventually have an impact on the working of a system. In this paper, an attempt is made to study the effect of crosstalk in 8-bit slice ALU, designed using 120 nm technology and suggested a method to reduce the crosstalk.Keywords: ALU, signal integrity, metal layers
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 1, 2013 · pp. 28–32 Read article
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Decimator Design for Sigma-Delta ADC
Abstract: This paper describes the design of a decimator which is used in digital signal processing as well as 10-bit sigma-delta analog-to-digital converter to down sample the incoming signal for further applications. It is also used for verification of the sigma-delta modulator functionality to reconstruct the incoming signal. The design has been carried out using 180 nm TSMC, CMOS foundry parameters for spice level 49 model parameters in TANNER EDA (Tspice). …
Published in Journal of VLSI Design Tools and Technology · Vol. 2, Issue 1-2-3, 2012 · pp. 16–28 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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Design of Booth Encoded Multi-Modulus {2n-1, 2n, 2n+1} RNS Multiplier
Abstract: Multiplication, a very important arithmetic operation, is finding a great use these days in various applications (especially DSP, multimedia and image processing). Due to advances in technology and increasing needs for high-speed calculations, it has become really necessary and important to design a fast efficient multiplier. A productive method to speed up the multiplication is reduction in the Partial Product (PP) array. In this paper, the design of 8, 16 …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 3, 2016 · pp. 7–14 Read article
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High Speed and Low Area Energy Efficient FPGA Implementation using RSD based Elliptic Curve Cryptography
Abstract: In this paper we will study high speed energy efficient FPGA implementation using redundant sign digit elliptic curve cryptography. In existing system to design processor with high area and low speed computation process so that we proposed to low area with high speed computation using Elliptical cryptography processor. Here we use redundant signed digit to reduce the overhead due to computations. For modular arithmetic operation for multiplication, we used Karatsuba-Ofman …
Published in Journal of VLSI Design Tools and Technology · Vol. 7, Issue 2, 2017 · pp. 45–50 Read article
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Analysis of Resource Utilization for a Floating-Point Complex Multiplication in FPGA
Abstract: Complex multiplication is an important operation frequently used in the digital signal processing. This paper shows the resource utilization for a complex multiplication on Spartan3E by using a 9 bit floating point numbers. The proposed method clearly shows that resource utilization for complex multiplication is less than the IP cores proposed by the Xilinx Company. More over this paper shows how the significant and the exponent of the floating point …
Published in Journal of VLSI Design Tools and Technology · Vol. 1, Issue 1-2-3, 2011 · pp. 9–14 Read article
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Comparative Analysis of CMOS CNFET and Memristor Based Full Adder Circuits and CMOS Memristor Based Multiplexer Circuits
Abstract: Continued developments in microelectronics technology have led to a myriad of new compute-intensive applications at the micro-edge, such as artificial intelligence and signal and image processing. Multiplication is a crucial arithmetic process in such applications. However, large logic complexities typically seen in traditional multipliers generate combinatorial blocks with long chains of cascaded carry addition. As such, energy efficiency has remained a primary design challenge for these applications, when powered by …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 22–33 Read article
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Forest Fire Detection System
Abstract: The IOT industry is rapidly growing in the current scenario. Each one of us now understands the significance of Internet of Things. At present, it is being used in almost all industries making our lives a bit easier. Forest fires have become a massive threat across the globe, causing numerous negative impacts on human habitats and forest ecosystems. Climatic changes and the greenhouse effect are among the consequences of such …
Published in Journal of VLSI Design Tools and Technology · Vol. 13, Issue 1, 2023 · pp. 1–5 Read article
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Reduce the Leakage Current and Power in VLSI Technology
Abstract: Demand for portability Reduce and increase in size, low cost, low dynamic power, low leakage current, low sub threshold current, and the necessity to minimise at least one of these. Circuit complexity increases with circuit integration. Memory and microprocessors are included in mass-produced chips. Microcomputer systems central system memory uses dynamic random-access memory (DRAM). One benefit of DRAM memory is its high speed and capacity integration. The examination of DRAM …
Published in Journal of VLSI Design Tools and Technology · Vol. 13, Issue 3, 2023 · pp. 19–25 Read article
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Water Quality Changes in Balu River during Non-Monsoon and Monsoon Period
Abstract: Dhaka, the capital of Bangladesh, is surrounded by numerous rivers and canals, such as Turag, Buriganga, Dhaleswari, Balu, and Shitalakshya. Among those, Balu river is one of the important water resources to supply drinking water for Dhaka metropolitan area (DMA), which is the 11thlargest city in the world. Nearly 14 million people reside in DMA. Major industrial zones in and around Dhaka are disposing untreated water directly in Balu river …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 38–49 Read article
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Waste Plants as a Green inhibitor for Reinforced Concrete
Abstract: AbstractIn recent years, the use of inhibitors in producing high performance concrete has increased significantly as a result of chloride and sulfate attacks. The present inhibitors in market are toxic to the environment. Hence, the objective of the present investigation was to study a novel, eco-friendly and a hydrophobic green plant extracts’ inhibitor (rice husks) and study the effects of it on compression strength of reinforced concrete. The inhibitor above …
Published in Recent Trends in Civil Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 53–58 Read article
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Seismic Behavior of RCC Buildings under Revised Seismic Zone Classification by BNBC
Abstract: This study aims at the comparison of provisions of earthquake analysis given BNBC 2017. The revised BNBC 2017 has divided the seismic zones of Bangladesh into four different categories such as Zone-1, Zone-2, Zone-3 and Zone-4 respectively. They have different seismic zone coefficients. Finally structural analysis and design of a typical G+10 storey school building situated in all four seismic zones is conducted to investigate the seismic behavior of that …
Published in Recent Trends in Civil Engineering & Technology · Vol. 9, Issue 3, 2019 · pp. 21–28 Read article
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Production of Dense Graded Cold Asphalt Mixtures with New Cementitious Material
Abstract: The energy revolution for offering sustainable energy supply and utilize in terms of economically and environmentally is interested evident for governments and industry. Cement is the main material for constructing the society’s buildings and infrastructures. Meanwhile, 5% of global CO2 emission is related to cement industry. Therefore, replacing of cement with one of the other sustainable materials is one of the main objectives of the climate change mitigation strategies around …
Published in Recent Trends in Civil Engineering & Technology · Vol. 6, Issue 3, 2016 · pp. 15–22 Read article
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Effect of pH on Shear Strength Behavior of Granular Soil
Abstract: In this research, the performances of pH value on shear strength behavior of granular soil have been studied. The shear strength of soil is an important term in most of the foundation engineering problems such as the bearing capacity of shallow foundation, slope stability of dam/embankment and lateral earth pressure on retaining walls. A series of direct shear tests were conducted on two types of dry granular soils (taken from …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 8–11 Read article
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Potable Water Quality Analysis of Akbarpura, KPK, Pakistan
Abstract: In Pakistan, supply of safe drinking water of international standard is very limited. Only around 30% population has access to piped drinking water, which has rarely been completely tested for health safety. About 70% population is drinking water of unknown quality. The only testing comes through human consumption and getting sick. This study is designed to investigate the water quality problems of Akbarpura, Khyber Pukhtunkhwa. Samples were collected from the …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 19–27 Read article
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Automatic Irrigation System on Sensing Soil Moisture Content
Abstract: AbstractIn developing countries like Bangladesh, farmers depend on rivers and rainfall to water their crops properly. Even though water pumps are used for irrigation purposes, the farmers have to operate those manually. In this paper, a system is proposed to reduce the human intervention as it will switch the motor on/off automatically after sensing the soil moisture content. Further system will allow the farmers to receive much needed rest and …
Published in Recent Trends in Electronics Communication Systems · Vol. 5, Issue 2, 2018 · pp. 13–20 Read article
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Coverage Driven Verification of Synchronous FIFO Using UVM
Abstract: FIFO(first in first out) is a memory array in which the data written first into the memory will be read first with the help of the control signals read and write. Where the control signal write is used to write the data into the memory and the control signal read is used to read the data from the memory. To avoid the memory overflow and to know that whether there …
Published in Recent Trends in Electronics Communication Systems · Vol. 8, Issue 1, 2021 · pp. 1–7 Read article
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Wireless Wings: Exploring the Role of Cellular Networks in Drone Connectivity
Abstract: The onset of the usage of drones around the globe has seen a kind of a big bang. From being used to deliver groceries, foodorders, and other items by tech giants such as amazon and uber eats, drones are used by the government for various purposesranging from mapping the lands to resolve land disputes, for security purposes, and a plethora of different scenarios. Theaccessibility to drones has increased so much …
Published in Recent Trends in Electronics Communication Systems · Vol. 10, Issue 3, 2023 · pp. 30–38 Read article