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54 articles for “Linear Electronics”
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Thevenin and Norton Resistance Using Time Domain Analyses Using Spice Simulations
Abstract: Thevenin and Norton equivalent circuits are of interest to circuit simulation designers and researchers. For the Thevenin resistance and Norton conductance determination of a network with available circuit theorems, the substitution network theorem (applied to OrCAD, SPICE, and Pspice AD simulation project) is shown to be suitable with the SPICE/ Pspice circuit simulation software. Instead of the DC option, the transient analyses option of SPICE is used to determine Thevenin/Norton …
Published in Current Trends in Signal Processing · Vol. 13, Issue 2, 2023 · pp. 8–18 Read article
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CONVERSION BETWEEN T-π OF NETWORKS USING PSPICE CIRCUIT SIMULATION
Abstract: Any passive network can be represented by their equivalent in either T-π (star-delta)model. From the conversion methods of T-π (star-delta) for resistive circuits, the behavioural modeling of Pspice simulation program, in which various mathematical equations could be represented by non-linear voltage/current dependent sources, is used to obtain equivalent circuits using DC option. The resistors are represented by their linear voltage/current relation. The zero voltage sources are used to measure currents …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 3, 2022 · pp. 9–14 Read article
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Short Review on Medical Applications of Particle Accelerators for Cancer Therapy
Abstract: AbstractThe cancer therapy by accelerators depends mainly on the following technologies: higher RF electron linear accelerator (linac); optimization of proton linac; synchrotron, cyclotron; superconducting magnet; and principles of laser. Firstly, the medical accelerators are described as a set of high RF linacs, synchrotrons, cyclotrons and superconducting magnets. Secondly, the medical accelerators are described as a set of accelerators applying the principles of laser. This short review will be helpful to …
Published in Journal of Nuclear Engineering & Technology · Vol. 7, Issue 3, 2017 · pp. 9–11 Read article
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APF for Mitigation of Current Harmonics with p–q and Id–Iq Control Strategies using PI Controller
Abstract: Due to a large amount of non-linear power electronic equipments, impact and fluctuating loads (such as that ofarc furnace, heavy merchant mill and electric locomotive, etc), problems of power quality have become moreand more serious with each passing day, as a result Active power filter (APF) gains much more attention due toexcellent harmonic compensation. But still the performance of the active filter seems to be in contradictions withdifferent control strategies. …
Published in Trends in Electrical Engineering · Vol. 1, Issue 1-2-3, 2011 · pp. 1–12 Read article
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Studies on the Electrical Characteristics of AlGaAs/GaAs High Electron Mobility Transistors
Abstract: AbstractIn this work, total 5722 individual simulation outputs are reported. The effects of drain voltage, gate voltage, aluminium mole fraction, and gate length on drain current are studied in AlGaAs/GaAs high electron mobility transistors (HEMTs). The linear region and saturation region are prominent in each drain characteristic curve. The drain current reduces in the structure of larger gate length. This work is useful to fabricate the HEMT based biomedical sensors. …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 5, Issue 3, 2018 · pp. 30–40 Read article
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Modeling, Analysis and LQR Control of an EV Differential using IPMSM
Abstract: Recently, the mechanical differential (MD) of vehicle has been replaced by electronic differential (ED) by means of electric motor. Electronic differential ensures dynamic and robust control of the vehicle behavior. The ED has been designed for an electrical vehicle (EV) based on IPMSM due to its some inherent advantageous features. The design of speed controller of an IPMSM mainly depends on its mathematical model. The mathematical model based speed controller …
Published in Journal of Control & Instrumentation · Vol. 7, Issue 2, 2016 · pp. 23–34 Read article
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Equivalent Linear Circuit for Thevenin and Norton Representation Using Superposition Theorem
Abstract: Using superposition theorem and knowing the Thevenin representation consisting of resistor, independent DC source of a network an equivalent DC network is obtained using SPICE software with linear circuit elements and independent sources and is verified. Also, similarly from the Norton representation, equivalent circuit is obtained. A procedure with Pspice methods to obtain unknown circuit elements using reciprocity theorem is described. Possible examples for (a) only resistive networks and (b) …
Published in Journal of Semiconductor Devices and Circuits · Vol. 10, Issue 2, 2024 · pp. 1–6 Read article
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T-π Network Simulation and Thevenin- Norton Equivalent Circuit Values From Laplace Description Using Pspice Software
Abstract: From the conversion methods of T-π (star-delta) for impedances circuits, the behavioral modeling of Pspice simulation program is used to obtain equivalent circuits using LAPLACE option. The conversions are verified for two types of circuits by obtaining AC values of voltages and currents at various nodes and branches using Pspice computer simulations. There are many ways of expressing Thevenin/Norton equivalent circuit parameters such as (a) as real numbers for pure …
Published in Journal of Semiconductor Devices and Circuits · Vol. 9, Issue 2, 2022 · pp. 43–58 Read article
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Modelling Electronic Diode Networks with PSPICE Simulation
Abstract: The dual of Thevenin, Norton equivalent circuit is used in place of any circuit/network of linear sources and immittances at at a given frequency. Both Thevenin with Norton theorem is useful for analyses and modification of circuits, to study /obtain network’s steady state response and initial condition. Methods to represent different circuits with Thevenin/Norton impedances connected at desired nodes are given using Spice/Pspice. The Thevenin/Norton impedances connected are of other …
Published in International Journal of VLSI Circuit Design & Technology · Vol. 2, Issue 2, 2024 · pp. 17–37 Read article
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Comparison of 11-Atom Armchair Graphene Nanoribbons and Zig-Zag Carbon Nanotubes in Polymer Composites Under Various Bias Voltages: A Study of Electronic and Transmission Properties
Abstract: In this research, 11-atom zig-zag carbon nanotubes (ZCNTs) and 11-atom armchair graphene nanoribbons (AGNRs) were studied under applied bias voltages at 50, 150, and 300 millivolt levels. The focus was on understanding their behaviour concerning transmission qualities, current-voltage (I-V) characteristics, and energy-momentum (E-K) diagrams. The Non-Equilibrium Green's Function (NEGF) approach was employed to analyse various electronic properties for ZCNTs and AGNRs, including transmission, E-K relationships, and I-V characteristics. The results …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 126–134 Read article
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A Suboptimal Nonlinear Duty-cycle Modulation Scheme
Abstract: The DCM (duty-cycle modulation) technique is increasingly used in industrial electronics applications, including instrumentation systems, interfacing drivers and signal transmission chains. However, in existing research works related to new applications of DCM technique, the linear approximation policy is used for the sake of structural simplicity and low implementation cost, at the expends of rigorous analysis and low approximation errors. In this paper, a suboptimal nonlinear DCM scheme is developed. It …
Published in Journal of Electronic Design Technology · Vol. 7, Issue 1, 2016 · pp. 22–31 Read article
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Structural, Electronic and Optical Properties of ZnO Material Using First Principle Calculation
Abstract: Structural, electronic and optical properties have been determined by using first principle calculation for ZnO material. In present study, full potential linearized augmented plane wave method has been selected with generalised gradient approximation executed in WIEN2k. Structure of ZnO material stabilises in the Wurtzite form of hexagonal closed packed crystal with lattice constant a=3.289Å, c= 5.307Å. Density of states and band structure diagram of ZnO material shows semiconductor nature with …
Published in Journal of Polymer & Composites · Vol. 11, Issue 5, 2023 · pp. 27–34 Read article
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Synthesis, Spectral Characterization and Computational Studies of Hydrazine Derivative
Abstract: (E)-1-(2,3-dimethoxy benzylidene)hydrazine (2,3-DMBH) is synthesized by condensation reaction. FT-IR, ¹H NMR, ¹³C NMR spectra were recorded for this compound. The synthesized compounds were evaluated as potential drug candidates through ADME analysis and Lipinski’s rule verification. Molecular docking studies against six proteins using AUTO DOCK software showed promising results. Among them, 2,3-DMBH exhibited strong binding affinities, particularly with 3ERT (-5.44 kcal/mol), followed by 5F90, 7E9B, and 3EWD. These findings suggest that …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 2, 2025 · pp. 1–17 Read article
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Ab Initio Investigation on Half-Heusler Compounds CoVZ (Z = P, Bi, Sb, As): Understanding Structural, Electronic, Magnetic, and Elastic Behavior
Abstract: The structural, electrical, mechanical, and magnetic properties of Half-Heusler CoVZ (Z= P, Bi, Sb, and As) compounds have been studied using the ab initio method. Here, we use the full potential linearized augmented plane wave (FP-LAPW) method, which is implemented by WIEN2k. The compounds CoVZ (Z= P, Bi, Sb, and As) are near to the Fermi level as implemented in the WIEN2k algorithm, exhibiting 100% spin polarization with finite band …
Published in Journal of Microelectronics and Solid State Devices · Vol. 10, Issue 3, 2023 Read article
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Current Controlled Oscillator Using FinFET
Abstract: A current-controlled oscillator using 18 nm FinFET technology is proposed in this study which consists of a Current Controlled Differential Difference Current Conveyor (CCDDCC) block to control the current. FinFET technology has better scalability and lower leakage current compared to traditional CMOS, which allows it to surpass the obstacles faced by CMOS-based oscillators. The suggested oscillator is suitable for electronic applications such as Phase-Locked Loop (PLL) systems, radio frequency (RF) …
Published in Journal of Semiconductor Devices and Circuits · Vol. 12, Issue 3, 2025 · pp. 17–28 Read article
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Current-Voltage Characteristics of 15-Atom Agnrs and Zcnts at Various Bias Voltages: Insights for Polymer Nanocomposite Applications
Abstract: The present research investigates the electronic properties of 15-atom Armchair Graphene Nanoribbons (AGNRs) and 15-atom Zig-Zag Carbon Nanotubes (ZCNTs) under applied bias voltages of 100, 200, 300, 400, 500, and 600 millivolts. Using the Non-Equilibrium Green's Function (NEGF) technique, the study analyzes various electrical features, including current-voltage (I-V) characteristics, to understand the behavior of these nanostructures. The findings reveal that AGNRs exhibit a larger bandgap than ZCNTs, which have a …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 135–144 Read article
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A Method for Power System Reliability Enhancement Considering Optimal Transmission Switching and Dynamic Line Thermal Rating
Abstract: In the power industry, the focus has been almost exclusively on implementing equipment that can keep the power system reliable. With the growth of renewable energy, resource integration, system load uncertainties, and volatile weather conditions, electric utilities are faced with an increasingly complex and uncertain operating environment. Utilities are in need of a series of cost-effective technologies which allow them to operate power systems more economically and reliably. Due to …
Published in Journal of Power Electronics and Power Systems · Vol. 8, Issue 3, 2018 · pp. 1–8 Read article
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Inverse Model for Predicting Thermal Abnormality of the Transient Process Triggered by Defective Electronics Element
Abstract: The paper presents a model for predicting thermal abnormalities in Printed Circuit Boards (PCBs) by approximating the thermal process of electric elements with heating from point sources. Circuit board heat sources are defined as point and non-point. The point heat source is a small electronic heating element that can be approximated as having originated from one point on the circuit board. A non-point source is one with heat distributed over …
Published in International Journal of Energy and Thermal Applications · Vol. 3, Issue 2, 2025 · pp. 24–31 Read article
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Effect of Bismuth doping on Thiourea crystals : A NLO Material
Abstract: Single crystals of pure and thiourea-substituted bismuth were successfully grown using the slow evaporation solution growth technique at ambient temperature. The impact of thiourea doping on the crystal properties was thoroughly investigated. Solubility tests for the grown samples were conducted at various temperatures, providing crucial data on the dissolution characteristics. Structural characterization of these crystals was performed using single crystal X-ray diffraction (XRD), confirming their crystalline nature. Energy-dispersive X-ray spectroscopy …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 2, 2024 · pp. 10–16 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