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426 articles for “DC”
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Optimization Study by Response Surface Methodology and Artificial Neural Network on the Culture Parameters of Citric Acid Bioproduction from Sweet Potato Peels
Abstract: In the cause of this research work, two steps enzymatic hydrolysis of sweet potato peel was carried out respectively. The effect of α-amylase dose, reaction time, and reaction temperature and biomass weight on glucose concentration was investigated carefully. The response surface methodology (REM) predicted the highest reducing sugar concentration at liquefaction to be 74 g/L, at the following optimized conditions; temperature of 45°C, α-amylase dose 0.7 %v/v, biomass weight 22.345 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 1, 2022 · pp. 30–38 Read article
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ECG De-noising Techniques and Optimal Feature Selection Using Principle Component Analysis
Abstract: AbstractECG (Electrocardiography) is used to record and determine the condition of the heart. This paper provides an overview of various ECG de-noising techniques that are used to eliminate different type of noises; therefore, noise reduction procedure to be performed to eliminate different type of noises such as baseline wander, dc offset and high frequency interference, and then the pre-processed signal is used to extract features from the ECG signal. This …
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 5, Issue 1, 2018 · pp. 14–20 Read article
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A New Dual Side Cut Corner Circularly Polarized Rectenna 2.45 GHz with DGS
Abstract: This paper introduces a new dual side cut corner circular polarized (CP) high efficiency rectifying antenna (Rectenna) array. The Rectenna consists of a truncated square patch antenna and a rectifying circuit. The Rectenna use a micro-strip patch antenna as a frequency 2.45 GHz and gain of 31.29 dB. The Rectenna circuit has a low pass filter (LPF) the maximum RF to DC conversion efficiency of the Rectenna is 68%.
Published in Journal of Telecommunication, Switching Systems and Networks · Vol. 2, Issue 3, 2015 · pp. 19–23 Read article
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Reusable FM0/Manchester Encoding Using QCA
Abstract: Dedicated short range communication (DSRC) is an important technique which is used for transmission of high speed data in communication based safety applications. For signal reliability and dc balance, it uses either Manchester or FM0 coding technique. Code word structure for both FM0 and Manchester are different, which makes limitation on the hardware potential of DSRC system So, SOLS technique is used to conquer this limitation which combines the hardware …
Published in Journal of VLSI Design Tools and Technology · Vol. 9, Issue 1, 2019 · pp. 51–59 Read article
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All-Digital Phase Locked Loop (ADPLL) as an Intellectual Property (IP) Core for an Application-specified Integrated Circuit (ASIC) Product: A Survey
Abstract: An all-digital phase locked loop (ADPLL) plays a great role in decreasing the development time of an application-specified integrated circuit (ASIC) products and helps to meet the time-to market requirement of product, because an ADPLL can be used as an IP core, so it is easily reusable in any design. Now a days ADPLL is being widely used in various fields such as control systems and digital communication systems. This …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 12–17 Read article
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CMOS Gm-C IF Filter using SCA for Dual Band Receiver
Abstract: This paper deals with design of folded cascode OTA-C filter, which works for frequencies for RF application, based on transistor sizing methodology and simulation results are performed using SPICE software and BSIM3V3 model for CMOS 0.18 μm process, show that the designed folded cascode OTA has a 52 dB DC gain and provides a unit gain bandwidth of around 400 MHz. Design of CMOS Gm-C 2nd order Biquad filter implementation …
Published in Journal of VLSI Design Tools and Technology · Vol. 5, Issue 3, 2015 · pp. 18–36 Read article
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Design of Low Power Folded Cascode Current Mirror CMOS OTA and Implementation of 2nd Order Gm-C IF Filter with Analysis of S-Parameter
Abstract: This paper deals with design and optimization of a cascode current mirror folded cascode operational transconductance amplifier is done in order to optimize MOS transistor sizing. The design of folded cascode OTA, which works for frequencies that lead to a base band circuit design for RF application, is based on transistor sizing methodology and Simulation results are performed using SPICE software and BSIM3V3 model for CMOS 0.18μm process, show that …
Published in Journal of VLSI Design Tools and Technology · Vol. 3, Issue 2, 2013 · pp. 12–23 Read article
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Design and Implementation of 2nd Order Gm-C IF Tuning Filter Operating at 900 MHz and 88–108 MHz Wireless System for Multi Standard Receiver
Abstract: This paper deals with design and optimization of folded cascode OTA-C filter, which works for frequencies that lead to a base band circuit design for RF application, is based on transistor sizing methodology and Simulation results are performed using SPICE software and BSIM3V3 model for CMOS 0.18 μm process, show that the designed folded cascode OTA has a 52 dB DC gain and provides a Unit gain bandwidth of around …
Published in Journal of VLSI Design Tools and Technology · Vol. 4, Issue 1, 2014 · pp. 8–24 Read article
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A Differentiator Based on Second Generation Current Controlled Conveyor
Abstract: A new second generation current controlled conveyor (CCCII) with programmable gain at output terminal ‘Z’ is presented in this paper. The inherent advantages of the proposed circuits are low supply voltage requirement of ±0.85 V, small input parasitic resistance in the range of 29.12 Ω–297.71 Ω for a current range of 10 µA–300 µA, low power dissipation of 79.39 µw and low DC current error of 0.068%. The proposed CCCII …
Published in Journal of VLSI Design Tools and Technology · Vol. 6, Issue 1, 2016 · pp. 89–95 Read article
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Simulation of Three Section Multilevel Inverter with Reduced Range of Switches
Abstract: Because of high generation development, the demand and excellent of electric strength ishigher than earlier than. Furthermore, due to the advancement of semiconductor, thespecification of electricity devices and strength conversion method turn out to be stricter. Oneof the energy converters that may remodel DC to AC is called inverter. An inverter is the intermedium to transmit the electricity to other electric device such as an uninterruptibleelectricity supply, servo motor, air-conditioner …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 1, 2020 · pp. 15–36 Read article
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Adaptive Hysteresis Band Current Controller for the Shunt Active Power Filter Using the d-q0 Reference Frame Theory
Abstract: Recent wide spread applications of power electronic equipment has caused an increase of the harmonic disturbances in the power systems. The nonlinear loads draw harmonic and reactive power components of current from AC mains. Here an adaptive hysteresis band current controlled shunt active power filter is presented to eliminate harmonics and to compensate the reactive power of three-phase rectifier. This current controller changes the hysteresis bandwidth according to modulation frequency, …
Published in Journal of VLSI Design Tools and Technology · Vol. 10, Issue 2, 2020 · pp. 1–7 Read article
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Analysis of Six-Pulse Bridge Circuits Including Zener and Semiconductor Diodes Part One
Abstract: This paper addresses the analysis of electronic bridge circuits including Zener and/or semiconductor diodes. The analysis is based on recently suggested models for these diodes. A compact Mathematica code written in the Versions 7.0, 11.3 and 12.2 simulating a six-pulse rectifier bridge circuit is then derived and mathematically implemented. It investigates the time-domain transient and steady-state analysis of several representative case studies. In principle, the computer simulation can yield the …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 1, 2022 · pp. 14–22 Read article
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Progressive collapse analysis study of rc building:a review
Abstract: The progressive collapse of building is that the collapse of whole building or a part of building in progressive manner thanks to spread of local failure from element to element. thanks to progressive collapse there'll be severe loss of building and lifetime of humanity as progressive collapse happens suddenly. Toavoid the loss got to design a building by proper study and analysis of building for progressive collapse. thanks to earthquake, …
Published in Recent Trends in Civil Engineering & Technology · Vol. 11, Issue 2, 2021 · pp. 13–19 Read article
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Indoor Localization of Mobile Device Using Fingerprinting Technique
Abstract: AbstractIndoor localization technology is real-time tracking of any device or person in an indoor area via a control device. In this paper, the fingerprinting method is utilized to track mobile devices in a specific indoor area. Fingerprinting, also known as pattern matching or database correlation method (DCM), needs a powerful received signal strength indication (RSSI) database which helps to make signal strength maps as well as used for matching. The …
Published in Recent Trends in Electronics Communication Systems · Vol. 4, Issue 3, 2017 · pp. 1–8 Read article
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Design and Implementation of PID Controller for Self Balancing Robot
Abstract: AbstractFor control engineers to study, apply and verify different control methods, inverted pendulum is a very good platform. Nearly 90% of the industries use the concept of inverted pendulum like ship balancing against of sea tide and control of rockets, space ships and landing of aero planes. The simple pendulum is stable while hanging downwards, but the inverted pendulum is a genetically unstable system. To make the inverted pendulum a …
Published in Recent Trends in Sensor Research & Technology · Vol. 5, Issue 2, 2018 · pp. 12–19 Read article
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Advanced Automatic Self-Car Parking Using Arduino
Abstract: Car parking is a major tricky in urban areas in both developed and developing countries. Following the rapid increase of car ownership, many cities are lacking car parking areas. This imbalance is partially due to ineffective land use planning and miscalculations of space requirements during first stage of planning. Shortage of parking space, high parking tariffs, and traffic congestion due to visitors in search for a parking place are only …
Published in Recent Trends in Sensor Research & Technology · Vol. 8, Issue 1, 2021 Read article
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Performance Evaluation and Operation of DSP Control UPS System
Abstract: An uninterruptible power supply (UPS) is a power controller that gives emergency electricity to a load when the mains energy fails. In on-line UPS, the load is always connected to the inverter though the UPS static switch. Specialized expertise is required for collection, analysis, and dissemination of technical information relating to high quality uninterruptible power systems. Inherent in these responsibilities is the coordination of technical and contractual matters relating to …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 1–13 Read article
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Fuzzy and PI Based Speed Control of BLDC Motor using Bidirectional Converter for Electric Vehicle Application
Abstract: Fuzzy logic control can be used in BLDC motor to control the four quadrants of operation so as to avoid power loss. In this study, a fuzzy based controller for speed control of BLDC motor is done, and it is compared with the conventional PI controller-based speed control technique. In addition to this, a bi-directional converter is used to achieve battery charging during regeneration and to charge the battery externally …
Published in Trends in Electrical Engineering · Vol. 8, Issue 3, 2018 · pp. 35–45 Read article
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HCC Based Hybrid Shunt Active Filter to Reduce the Harmonics Due to Switching Surges
Abstract: This paper deals with the hysteresis current control based hybrid shunt active filter to reduce the harmonics produced by frequent switching of industrial loads in distribution system. The main harmonic sources of distribution lines are the non linear loads and frequent switching of industrial loads. The harmonics due to non linear loads can be controlled by passive filters. The switching surges are dynamic and its magnitude dies out quickly. Hence …
Published in Trends in Electrical Engineering · Vol. 3, Issue 2, 2013 · pp. 15–19 Read article
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Speed Control of An Inverter Fed Three-Phase Induction Motor Using IP Controller Considering Core Loss and Stray Load Loss
Abstract: Consideration of core losses and stray load losses to design a controller of an inverter fed induction motor are affected to the flux and torque decoupling strategy adversely. As a consequence, the detuning of field-oriented control (FOC) is required. The detuning strategies have been developed in some literatures. But the implementation of detuning becomes difficult because of higher order expression. In general, the controlling and estimation of AC drives are …
Published in Trends in Electrical Engineering · Vol. 5, Issue 1, 2015 · pp. 28–35 Read article