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183 articles for “wave power”
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Hidden Buck Chopper Circuits Topology in a Switch Controlled Singe Phase Rectifier, Size and Cost Analysis
Abstract: This paper shows hidden buck chopper circuits topology in a single phase switch controlled full wave rectifier. Justification of this realization yields the opportunity to use the single circuit structure for both AC to DC and DC to DC conversion processes. Generally, two diodes out of four diodes are replaced by two switches to offer voltage gain and input power factor regulation in a single phase full wave rectifier. Such …
Published in Journal of Power Electronics and Power Systems · Vol. 5, Issue 2, 2015 · pp. 17–28 Read article
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Low-Complexity VLSI Hardware Design for DWPT
Abstract: AbstractThis paper presents a low-complex discrete wavelet packet transform (DWPT) architecture design for power constrained and cost sensitive healthcare applications. The multiplier-adder unit of the proposed multiplier-based designs of DWPT is replaced by the shift-add unit to reduce the area complexity of parallel structure. The proposed low-complexity multiplier-less design could be used an alternative to the existing multiplier-based design for hardware efficient realization of multi-level DWPT.Keywords: DWPT, Hardware complexity, VLSI, …
Published in Journal of Microelectronics and Solid State Devices · Vol. 4, Issue 3, 2017 · pp. 28–32 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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Harmonic Analysis of Full-Wave Diode Bridge Rectifier Circuits
Abstract: This paper analyzes the steady-state harmonic performance of four-diode, single-phase full-wave rectifier bridge circuits. The frequency spectra of the source and load currents are presented. The effect of the load resistance, the source inductance, the smoothing shunt- capacitor as well as the waveform of the supply voltage is illustrated. The approach can also handle cases involving non-sinusoidal sources and non-linear loads. Based on a Mathematica code, the paper presents the …
Published in Trends in Electrical Engineering · Vol. 10, Issue 1, 2020 · pp. 7–21 Read article
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Power Supply Design Issues for Personnel Computers Application: A Review
Abstract: A power supply should meet various requirements for proper functioning of a PC. Electromagnetic Interface (EMI) causes catastrophic failures resulting in malfunctioning of PC's. It is therefore essential to meet the Electromagnetic Compatibility (EMC) requirements in addition to other design considerations demanded in a high technology system. The computer is operating and transmitting the signal with low voltage, so it is sensitive to Electromagnetic interference of leakage. Since the PC …
Published in Journal of Power Electronics and Power Systems · Vol. 3, Issue 2, 2013 · pp. 37–40 Read article
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EFFICIENCY INCREASE IN MARINE WIND TURBINES
Abstract: The paper studies a method to increase the efficiency in floating marine wind turbines by modifying the pitch angle of the wind rotor blades to make the wind turbine operating at optimum conditions. The pitch angle is adjusted to its optimum value as a function of the tilt angle of the wind turbine mast when submitted to the wave movement. The analysis of the situation has led to a theoretical …
Published in Journal of Offshore Structure and Technology · Vol. 9, Issue 1, 2022 · pp. 37–49 Read article
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How small circuits power big technology in the world of VSIL
Abstract: Very Small Integration Level (VSIL) circuit technology represents an emerging class of ultra- compact, low-power electronic design methodologies that enable the creation of highly efficient and scalable systems. This article explores the fundamental principles behind VSIL circuits, including device miniaturization, optimized layout strategies, adaptive power management, and noise-resilient architectures. We also look into the methodical engineering of VSIL circuits to satisfy the ever-tougher performance, robustness, and long- term energy-efficiency demands …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 3, Issue 2, 2025 · pp. 44–53 Read article
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Design and Performance Investigation with Erbium-Ytterbium Co- Doped Fiber Amplifier Link
Abstract: AbstractLight wave propagation through optical fiber suffers from numerous linear and nonlinear effects. To compensate it techniques have been adopted. Amongst optical fiber amplifiers doped with ions are one of the key tools to enhance spectral efficiency further. In this vision, an optical design with EDFA and Erbium ytterbium co-doped fiber amplifier is presented for the single channel. The design’s performance has been investigated for numerous optical parameters for instance …
Published in Recent Trends in Sensor Research & Technology · Vol. 4, Issue 2, 2017 · pp. 6–13 Read article
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Invisible Watermarking on RGB Image with the Combination of 7-DWT and SVD
Abstract: In this study, we present a powerful watermarking system based on seven level discrete wavelet transform and singular value decomposition for RGB picture where R signifies red color, G indicates green color and B means blue color. It provides improved security and performance in terms of mean square error, peak signal noise ratio, structural similarity matrix, normalized cross correlation and execution time. During the experiment, we increase peak signal noise …
Published in Journal of Open Source Developments · Vol. 2, Issue 3, 2015 · pp. 12–19 Read article
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FLOATING OFFSHORE WIND TURBINE WITH CARDAN SUSPENSION
Abstract: This paper describes a new structural design for a vertical axis floating offshore wind turbine (FOWT). The wind turbine consists of bowl-shaped blades set arranged circularly around a vertical axis on which they rotate due to the wind effect. A cardan mechanism supports the set and maintains the wind turbine in horizontal position despite the wave movement. The proposed wind turbine increases the power generation by 10% for a maximum …
Published in Journal of Offshore Structure and Technology · Vol. 10, Issue 3, 2023 · pp. 10–20 Read article
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Study of ECG Signal Features Extraction using Wavelet Transform: A Review
Abstract: QRS-complex detection is used for analysis of ECG signal. ECG gives the information about electrical activity of the heart Since an ECG is a non-stationary signal and consists of various types of noise such as baseline wander, power line interference and muscle noise. To eliminate such types of noise wavelet transform is used. Mother wavelet is widely used to extract information from these types of signal by denoising. This paper …
Published in Current Trends in Signal Processing · Vol. 4, Issue 2, 2014 · pp. 1–6 Read article
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Comparative Analysis of Power Penalty versus Crosstalk in Optical Active Network Components like Erbium Doped Fiber Amplifier, Raman Amplifier and Semiconductor Optical Amplifier
Abstract: AbstractOptical amplifiers boost the power of optical system without optoelectronics (O-E-O) conversion. The optical amplification process is accompanied by Amplified Spontaneous Emission (ASE) noise that accumulates along the transmission line and degrades the optical signal to noise ratio (OSNR). Intensity modulation in one channel causes crosstalk in the other channel via the change of the complex refractive index in the amplifier. In this paper, authors tried to calculate and compare …
Published in Trends in Opto-electro & Optical Communication · Vol. 3, Issue 1, 2013 · pp. 1–10 Read article
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Low Power Long Range Wireless Protocols for IoT Applications for Pandemic Conditions
Abstract: AbstractInternet of things is a need of time. In January to March 2020 scenario where pandemic virus disease is spread all over the world. Most of the countries are following lockdown mode as prevention. IoT applications plays important role in such kind of disastrous conditions. The person is expected to remain in isolation if found infected by virus and all his daily activities are monitored. Wireless technologies play important role …
Published in Recent Trends in Sensor Research & Technology · Vol. 7, Issue 2, 2020 · pp. 17–22 Read article
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Power Quality Issues and Mitigation Strategies: A Review
Abstract: AbstractTo protect the power system recognition and arrangement of voltage (V) and current (I) issues are essential tasks. Most power quality (PQ) disturbances are unstable and ephemeral; the call for recognition and arrangement of voltages and current is proved. There are some intelligent system technologies which have dominance regarding fault analysis by using wavelet transform (WT), expert systems and artificial neural networks. As signals are classified in six classes: five …
Published in Current Trends in Signal Processing · Vol. 9, Issue 3, 2019 · pp. 23–27 Read article
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A Comparative Analysis of Attacks in Wireless Network
Abstract: Sensor networks (WSN) is an emerging technology and a hot research topic among researchers due to their flexibility and independence of network infrastructures, such as base stations. It can also be used for applications such as building, traffic surveillance, and habitat monitoring and many scenarios. It is flexible to go through physical partition and it avoids lot of wiring. The major challenges one facing today in wireless sensor network is …
Published in Journal Of Network security · Vol. 2, Issue 3, 2014 · pp. 22–28 Read article
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Some Investigations with Ultra High Speed Low Power All Optical digital Logic Gates
Abstract: AbstractThis paper illustrates design for an all-optical optical inverter and universal digital logic NAND gate using NRZ format, realized by MZI structure. Miscellaneous evaluations have been done to examine the designs performance in terms of their generated output waveforms. Simulations have been done for significant design parameters as chirp factor, laser power and bit error rate at different data-rates. Optical Logical gate outputs have been verified. It showed good design …
Published in Trends in Opto-electro & Optical Communication · Vol. 8, Issue 3, 2018 · pp. 17–30 Read article
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Thermal Effects in High-Power Laser Systems: Modeling and Mitigation
Abstract: High-power laser systems are increasingly employed in industrial manufacturing, defense, medical procedures, and scientific research due to their ability to deliver high energy density with excellent spatial coherence. However, the performance and reliability of these systems are significantly influenced by thermal effects arising from optical absorption, non-radiative recombination, and inefficient heat dissipation within laser gain media and optical components. These thermal phenomena lead to adverse effects such as thermal lensing, …
Published in International Journal of Manufacturing and Production Engineering · Vol. 3, Issue 2, 2025 · pp. 9–13 Read article
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Design Simulation and Assessment of Low PAPR FBMC System for Energy Efficient 5G Applications
Abstract: As of late, filter bank multi-transporter (FBMC) has seemed incredible enthusiasm as an option in contrast to orthogonal frequencies Division Multiplexing (OFDM). FBMC plan has extended Frequency capability and low out of band (OOB) outpourings Compared to OFDM. In any case, FBMC still experiences high positions Peak-to-average power proportion (PAPR) in OFDM frameworks. Some OFDM-based PAPR decrease innovation has been received FBMC framework. In this paper, new advancements for PAPR …
Published in Journal of Communication Engineering & Systems · Vol. 11, Issue 1, 2021 · pp. 15–21 Read article
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Planar UWB Antenna for 5 GHz ISM Band
Abstract: AbstractThe Ultra-Wide Band (UWB) technology used for high data rate with low power levels for many wide applications which mainly includes short range, wide bandwidth communications. The Planar UWB antenna is designed for 5GHz Industrial, Scientific and Medical (ISM) band. These bands are specially dedicated to industrial, scientific and medical applications other than telecommunications. ISM applications like Microwave ovens, RF process heating and medical diathermy application. Proposed antenna has VSWR …
Published in Journal of Microwave Engineering and Technologies · Vol. 7, Issue 2, 2020 · pp. 1–6 Read article
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The Electromagnetic Transients in Mixed Power Networks with Partial Undergrounding
Abstract: This paper deals with the electromagnetic transients in partially undergrounded mixed high voltage power networks. These networks can include several cable sections replacing parts of the overhead transmission lines. The analysis yields the transient voltage and current distributions along the normal and the partially undergrounded lines. Moreover, the results can indicate eventually existing localized voltage and current concentrations within the network. The study suggests an exact direct analytical distributed parameter …
Published in Journal of Power Electronics and Power Systems · Vol. 7, Issue 2, 2017 · pp. 1–13 Read article