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78 articles for “Rectifiers”
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Lean Production using Casting Simulation to Promote FTR Approach
Abstract: When the talk is about the green production, then intention is to develop a product with first-time-right approach. Foundry desperately needs such production system, as it provides wide range of products. Even the small errors in the inputs (concept, design, raw material, process, etc.) can lead to wasted outputs [1], and invite unwanted cost of reworking. Thus, it is of extreme importance to develop the castings with FTR (first time …
Published in Journal of Production Research & Management · Vol. 3, Issue 2, 2013 · pp. 23–29 Read article
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USB Charger Using Pedal Power
Abstract: Profound cyclists will no doubt have every now and then thought that is would be agreeable to have some special type of on-board power supply to charge a mobile device such as a phone or a satnav even though on the road. The project describes how this can be achieved quite simply using power from the bicycle’s dynamo and a switching regulator. The alternating voltage delivered by the bicycle’s dynamo …
Published in Journal of Semiconductor Devices and Circuits · Vol. 2, Issue 3, 2015 · pp. 1–3 Read article
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Study of Structures Considering Second Degree Analysis P-delta and Construction Sequence Analysis
Abstract: Infrastructure plays an important, rathernecessary role in modern society.Real estate amenities surrounding to us give everyone access to multiple aspects of technology which help to carve the frame of mind.Amenities, which once were rare and difficult to avail for everyone, is now available to common civilians.Recently, RCC structures has changed a lot,the symmetrical and identical storeys of premises is now considered as a conventional and to an extent inefficient design.The …
Published in Journal of Structural Engineering and Management · Vol. 8, Issue 1, 2021 · pp. 38–42 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 Two
Abstract: The present study offers a generic method for simulating and modelling six-pulse rectifier bridge circuits in the time domain. These circuits can include Zener and/or semi-conductor type diodes or even a mixture of them. The governing system of simultaneous algebraic and differential equations are listed and solved numerically using a computer code written in Mathematica. The flexibly written program can handle voltage sources of any time waveform, frequency or internal …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 13–21 Read article
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PWM Technique based evaluation and performance analysis ofZVS Based Resonant Converter
Abstract: A Zero Voltage Switching (ZVS) based Resonant Converter (RC) has been simulated and the performanceis analyses in this paper. A ZVS based resonant converter working under load independent output voltage and no-load regulation is presented in the paper.Pulse width modulation (PWM) is a technology used to regulate outputvoltage. The major transitions of a full-bridge converter that achieves zero-voltage switching across the whole lineand load range by using a linked inductor …
Published in Journal of VLSI Design Tools and Technology · Vol. 12, Issue 2, 2022 · pp. 42–48 Read article
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Power Quality Improved AC-DC Sepic converter Used for Welding application
Abstract: Abstract— In this paper high frequency isolated ac-dc single phase single ended primary inductance converter (SEPIC) are proposed. Due to use of HF transformer more gain and high power is obtain. Proposed converter offers increased gain which is step-down in nature having less stress on current and also high efficiency. This paper described analysis modeling, and simulation of proposed converter. The performance is described in terms of power quality like …
Published in Recent Trends in Electronics Communication Systems · Vol. 6, Issue 1, 2019 · pp. 24–30 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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Wearable Rectenna Array for Wireless Power Transmission
Abstract: This paper explains about design of wearable antenna array which is used for receiving the microwave power transmitted at dual frequencies. Direct current power is obtained at the end of rectifying antenna or (Rectenna) composed with filter and Schottky diode. Proposed wearable antenna is designed on jeans textile as a substrate and copper foil tap as conducting material. The antenna array has the dual band resonating frequencies which are 4.65 …
Published in Trends in Electrical Engineering · Vol. 8, Issue 1, 2018 · pp. 59–64 Read article
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Implementation of a Solar PV-Wind Hybrid System using MATLAB/SIMULINK
Abstract: This paper presents the simulation and analysis and control of a hybrid system based on solar and wind system employing a dc-dc boost converter and permanent magnet synchronous generator. Maximum power point tracking controllers of solar PV and wind system are operating on perturb and observe method that extract the maximum power from solar and wind sources. It requires the sensing of dc voltage and current output of solar PV …
Published in Trends in Electrical Engineering · Vol. 5, Issue 3, 2015 · pp. 59–70 Read article
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Topology, Operation and Control of Modular Multilevel Converter for Grid Application: A Review
Abstract: Modular multilevel converter (MMC) is a widely accepted technology for high voltage direct-current (HVDC) application. Due to its modularity, scalability, power quality, and no need of bulky filter on ac side, they are widely used as voltage source converters in HVDC applications. This paper presents a comprehensive study on MMC technology for grid applications along with different modulation techniques and voltage balancing strategies which are essential for the converter to …
Published in Trends in Electrical Engineering · Vol. 7, Issue 1, 2017 · pp. 25–47 Read article
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IoT-based Intelligent Car Parking System
Abstract: Lack of dedicated parking spaces and difficulty finding an empty spot quickly are two main problems with the existing parking system. This system aims to rectify the current parking issues by presenting an IoT-based intelligent car parking system with an Arduino UNO, an anIRsensorfordetection, an LCD screen, servo motors, and a numeric pad. Our parking system employs a microcontroller and an LCD to show the number of vacant spaces and …
Published in Trends in Opto-electro & Optical Communication · Vol. 13, Issue 2, 2023 · pp. 32–38 Read article
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Surrogating Computing Paradigms and Challenges in IOT
Abstract: Centralized cloud underwent an obstruction due to large number of processing and computation. Cloud computing will not exploit ground level devices to carry out any extent of computation. IoT network uses edge computing paradigm to handle its daily created titanic data in order to reduce response time, bandwidth and latency of its devices devour. Many paradigms were proposed to resolve the issues in traditional paradigms and they were discussed with …
Published in Current Trends in Information Technology · Vol. 8, Issue 2, 2018 · pp. 18–21 Read article
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Design of Front-end for Variable-frequency Drive
Abstract: A variable-frequency drive (VFD) is a device used in electro-mechanical drive systems to regulate the speed and torque of AC motors. It consists of a rectifier, a DC link, and an inverter, which work together to convert AC power into a variable frequency and voltage AC power supplied to the motor. By providing accurate speed regulation, VFDs enable energy conservation, enhanced process management, and reduced motor wear. They are commonly …
Published in Research & Reviews: A Journal of Embedded System & Applications · Vol. 11, Issue 1, 2023 · pp. 31–35 Read article
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Importance of Clinical Decision Making by Nurses in Care of Patients in Acute Care Settings
Abstract: Clinical decision making is a complex process. Healthcare workers need to consider various aspects of healthcare using a vast body of knowledge while formulating a clinical decision. More recently, clinical decision making has become a collaborative process and patients are also involved as much as possible. The ultimate goal of every clinical decision making is to achieve the best health outcomes for the clients. Through review of relevant literatures, seven …
Published in Journal of Nursing Science & Practice · Vol. 4, Issue 1, 2014 · pp. 9–13 Read article
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Patient Perception on Reducing Prolonged Waiting Time in Outpatient Department in Indian Population
Abstract: Outpatient department (OPD) is the first point of contact with the patient and serves as a window to any healthcare service provided to the community. The care in OPD indicates the quality of services of a hospital and is reflected by the patient’s satisfaction and their perception about the time spent. Reducing waiting time and making sure that patients receive the right care at the right time, which will have …
Published in Research and Reviews: A Journal of Health Professions · Vol. 8, Issue 3, 2018 · pp. 43–50 Read article
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Effect of Piper longum on Urinary Metabolites and Its Correlation with Nootropic Activity in Rat Models
Abstract: Piper longum is one of the Indian traditional plants having lots of therapeutic uses. The present study is aimed to evaluate the antistress activity of aqueous extract of Piper longum in stress models. VMA, 5HIAA, and ascorbic acid were selected as noninvasive biomarkers of urinary metabolites. Continuous administration of different doses of Piper longum (100, 300 mg/kg) and Bacopa moniera (100 mg/kg) to the stressed groups was done prior to …
Published in Research and Reviews : A Journal of Medical Science and Technology · Vol. 1, Issue 1, 2012 · pp. 10–27 Read article
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Unified Mathematical Framework for Semiconductor Devices, Junction Dynamics, and Circuit Analysis
Abstract: Semiconductor devices form the fundamental building blocks of modern electronic and integrated circuit systems, where their electrical behavior is governed by coupled carrier transport, electrostatic, and circuit-level phenomena. This work presents a unified mathematical framework for modeling semiconductor devices, junction dynamics, and their interaction with electronic circuits. The formulation integrates fundamental semiconductor relations, carrier concentration, drift–diffusion transport, Poisson’s equation, continuity equations, PN-junction behavior, diode characteristics, bipolar junction transistor operation, and …
Published in Journal of Semiconductor Devices and Circuits · Vol. 13, Issue 2, 2026 · pp. 37–47 Read article