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Journal articles on the topic 'Inductors'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

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1

Scirè, Daniele, Gianpaolo Vitale, Marco Ventimiglia, and Giuseppe Lullo. "Non-Linear Inductors Characterization in Real Operating Conditions for Power Density Optimization in SMPS." Energies 14, no. 13 (2021): 3924. http://dx.doi.org/10.3390/en14133924.

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The exploitation of power inductors outside their linear region in switching converters can be achieved by raising the current until a decrease in the inductance can be noticed. This allows using a smaller magnetic core, increasing the power density of the converter. On the other hand, a detailed description of the magnetization curve including the temperature is required. Since this information is often not included in the inductor’s datasheets, this paper shows how to identify the behavior of an inductor when it is operated up to saturation and its temperature rises. In order to characterize

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2

Wang, James J. "Flexible On-Chip Inductors and Transformer." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2010, DPC (2010): 001948–66. http://dx.doi.org/10.4071/2010dpc-wp34.

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Inductors directly on-chip was designed, processed and tested. Combining thick, electroplated gold used to produce LCD driver ICs plus gold wire bonding, toroidal inductors are formed directly on top of ICs. Both processes are production ready. One layouts inductor line segments on top of ICs and then complete loops using gold wire bonds at packaging. Two, 4, 8 or 16 toroids will fit inside thin QFN package. Cost to integrate 2 or more inductors is less than buying 0402 chip inductors and then soldering SMT components around ICs. Integrating inductors shrinks PCB board and allows IC design of

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3

Balamurugan, Karthigha, M. Nirmala Devi, and M. Jayakumar. "Low Noise Amplifier at 60 GHz Using Low Loss On-Chip Inductors." Journal of Electrical and Computer Engineering 2023 (August 23, 2023): 1–15. http://dx.doi.org/10.1155/2023/2469673.

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This paper proposes the technique of using low loss on-chip inductors in the design of low noise amplifier (LNA) that offers high gain and lower noise figure. Upon the substrate of octagonal spiral inductors, a surface of patterned ground shield is inserted that significantly reduces the substrate loss. This effect limits the penetration of electric filed into the substrate, thereby improving the inductor’s Quality (Q) factor and decouples the substrate parasitic that results with smaller series resistance. These effects result with improved gain and noise figure of LNA at 60 GHz when the desi

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4

Namoune, A., R. Taleb, N. Mansour, M. R. Benzidane, and A. Boukortt. "Integrated through-silicon-via-based inductor design in buck converter for improved efficiency." Electrical Engineering & Electromechanics, no. 6 (October 21, 2023): 54–57. http://dx.doi.org/10.20998/2074-272x.2023.6.09.

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Introduction. Through-silicon-via (TSV) is one of the most important components of 3D integrated circuits. Similar to two-dimensional circuits, the performance evaluation of 3D circuits depends on both the quality factor and inductance. Therefore, accurate TSV-inductor modeling is required for the design and analysis of 3D integrated circuits. Aim. This work proposes the equivalent circuit model of the TSV-inductor to derive the relations that determine both the quality factor and the inductance by Y-parameters. Methods. The model developed was simulated using MATLAB software, and it was used

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5

Muneeswaran, Dhamodaran, Jegadeesan Subramani, Thanapal Pandi, Navaneethan Chenniappan, and Meenatchi Shanmugam. "Modelling of Different On-chip Inductors for Radio Frequency Integrated Circuits." Proceedings of the Bulgarian Academy of Sciences 75, no. 10 (2022): 1491–98. http://dx.doi.org/10.7546/crabs.2022.10.12.

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This paper presents a typical frequency-dependent modelling of different on-chip inductors for RFICs design problems. Modern RF circuits often feature on-chip inductors required by modern circuit design. A comparison of different inductor geometrics includes a planar spiral inductor and novel multilayer inductors are analyzed. An electromagnetic model with fewer assumptions than empirical equations and higher efficiency than full-field solvers would be welcome. So would facile comparisons of different inductor structures. This paper describes recent work on the electromagnetic modelling of on-

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6

Wirtz, Jochen, Chris Tang, and Dominik Georgi. "Successful referral behavior in referral reward programs." Journal of Service Management 30, no. 1 (2019): 48–74. http://dx.doi.org/10.1108/josm-04-2018-0111.

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PurposeReferral reward programs (RRPs) incentivize existing customers (inductors) to refer new customers (inductees). The effectiveness of RRPs is not well understood as previous studies either focused on referral intent and/or ignored inductee responses. However, an RRP is only effective if inductors recommend and inductees respond with buying the service. The purpose of this paper is to examine the drivers of existing customers’ successful referral behavior.Design/methodology/approachThis study combines a bank’s customer relationship management (CRM) data which were used to identify successf

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7

Karjalainen, Päivi H., Juha Rapelo, and Eero O. Ristolainen. "Spiral Inductors with Multi-Strip Coils Processed on Sapphire and Bulk Silicon Substrates." Journal of Microelectronics and Electronic Packaging 1, no. 4 (2004): 206–16. http://dx.doi.org/10.4071/1551-4897-1.4.206.

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Improvements in inductor properties are demonstrated using inductors fabricated by the SOS and CMOS processes. Inductor coils are constructed in the form of several separate strips and the effect of the coil layout on the inductance and quality factor is examined with respect to traditional (“un-slit”) inductors. Optimized multi-strip layout increases the inductance and the quality factor of an inductor. The coil layout has very little influence on the self-resonance frequency of the inductor. Multi-strip layout of the inductor coil increases the coil's series resistance, which in conjunction

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8

Li, Xu, and Li. "Analysis of the Performance Variation Mechanism of MEMS Suspended Inductors under Mechanical Shock." Micromachines 10, no. 10 (2019): 686. http://dx.doi.org/10.3390/mi10100686.

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Micro-electromechanical system (MEMS) suspended inductors have been widely studied in recent decades because of their excellent radio frequency performance. However, the deformation of the inductor coil and the performance variation usually occur to the MEMS suspended inductors when the inductors are under mechanical shock. Few studies have been carried out on the performance variation of MEMS suspended inductors under shock. In this study, the mechanism of the performance variation of MEMS suspended inductors under mechanical shock is analyzed by combining theoretical analysis and experiments

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9

SOLIMAN, AHMED M. "A NOTE ON THE TRANSFORMATION OF GROUNDED INDUCTORS TO FLOATING INDUCTORS USING OFA AND FCCII." Journal of Circuits, Systems and Computers 22, no. 02 (2013): 1250086. http://dx.doi.org/10.1142/s0218126612500867.

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Recently this author published a paper1 discussing the transformation of grounded inductors to floating inductors using operational floating amplifier (OFA) or floating current conveyor (FCCII). The author classified the paper as a partially review paper as stated in the abstract and in the introduction of Ref. 1 The author states in the abstract that: It is well known that a floating inductor circuit is realized from a grounded inductor circuit by replacing the operational amplifier by a floating operational transconductance amplifier. This idea is extended to transform current conveyor groun

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10

Farooq, Muhammad, Bilal Amin, Adnan Elahi, William Wijns, and Atif Shahzad. "Planar Elliptical Inductor Design for Wireless Implantable Medical Devices." Bioengineering 10, no. 2 (2023): 151. http://dx.doi.org/10.3390/bioengineering10020151.

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Wireless implantable medical devices (WIMDs) have seen unprecedented progress in the past three decades. WIMDs help clinicians in better-understanding diseases and enhance medical treatment by allowing for remote data collection and delivering tailored patient care. The wireless connectivity range between the external reader and the implanted device is considered one of the key design parameters in WIMD technology. One of the common modes of communication in battery-free WIMDs is inductive coupling, where the power and data between the reader and the implanted device are transmitted via magnet

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SOLIMAN, AHMED M. "ON THE TRANSFORMATION OF GROUNDED INDUCTORS TO FLOATING INDUCTORS USING OFA AND FCCII." Journal of Circuits, Systems and Computers 20, no. 02 (2011): 243–62. http://dx.doi.org/10.1142/s0218126611007232.

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It is well known that a floating inductor circuit is realized from a grounded inductor circuit by replacing the operational amplifier by a floating operational transconductance amplifier. This idea is extended to transform current conveyor grounded inductors to floating inductors by replacing the current conveyor by the recently introduced floating current conveyor. Several examples are considered and simulation results are given to support the theory. Although the paper is partially a review in nature it includes several new realizations of floating inductors.

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12

Onoda, Junjiro, Shigeru Shimose, and Kenji Minesugi. "Optimal configuration and combination of piezoelectric transducer and inductor for synchronized-switch-damping-on-an-inductor technique." Journal of Intelligent Material Systems and Structures 28, no. 7 (2016): 888–906. http://dx.doi.org/10.1177/1045389x16666173.

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This article describes the optimal configuration and combination of piezoelectric transducers and inductors for the synchronized-switch-damping-on-an-inductor technique. The technique suppresses structural vibrations by inverting the polarity of the electric voltage in a piezoelectric transducer using a switched inductive shunt circuit at each displacement extremum. The energy dissipation rate of synchronized switch damping on an inductor depends on the impedances of the transducer and the inductor in the circuit, especially the resistive component, in this inversion. For this study, mathemati

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13

Ramesh Krishna. "Design and Simulation of Subsonic Frequency, Frequency-Selective Circuit Using Active Inductor." Communications on Applied Nonlinear Analysis 32, no. 5s (2024): 192–203. https://doi.org/10.52783/cana.v32.3004.

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Designing very low frequency (VLF) tuning circuits poses a significant challenge due to the impractical size of inductors required at these frequencies. As the frequency decreases, the inductance value needed becomes larger, making it difficult to implement physically. To address this issue, this paper presents an alternative approach that replaces the traditional passive inductive component (L) with a simulated inductor. The simulated inductor, designed specifically for VLF applications, offers a practical solution to overcome the limitations of using large inductors. The design of the simula

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14

Clewell, Matthew J., and William B. Kuhn. "Comparison of Silver vs. Gold Systems in High-Q FTTF LTCC Inductors." International Symposium on Microelectronics 2012, no. 1 (2012): 000617–21. http://dx.doi.org/10.4071/isom-2012-wa34.

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Two different types of full tape thickness feature (FTTF) inductors designed to operate in the VHF/UHF bands were fabricated using the DuPont Green Tape 5738 Gold System and the 6141 Silver System. The first was a 50 nH inductor, with 5 turns and an 80 mil diameter. The second inductor was 20 nH with an 80 mil diameter, but with only 3 turns. High-Q measurements were taken to characterize the inductors. The measured results show that the Silver System produces inductors with Qs up to 110 whereas the Gold System only produced inductors with Qs up to 80. Depressions in the Q measurements were no

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15

Khoo, B. K., Ovinis Mark, and Nagarajan Thirumalaiswamy. "A Comparative Analysis of Inductors with Square and Conical Contours." Applied Mechanics and Materials 415 (September 2013): 414–17. http://dx.doi.org/10.4028/www.scientific.net/amm.415.414.

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Winding pattern and contour are important factors in power inductors with multiple layer windings, since power inductors with multiple layers are prone to proximity effect, as multiple stacking increases the resistance stress of a conductor, eventually leading to failure of the inductor. This paper presents a comparison of winding losses for cone and square contour inductors, and discusses possible causes for the discrepancy. Conical contour inductors within a fixed core window are comparatively better than square contour winding inductors. A cross sectional analysis after winding revealed tha

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16

Liu, Qichen, and Zhengquan Zhang. "Design of Interleaved Winding for Multilayer Planar Inductor and Its Application in Reducing Current Ringing of LLC Resonant Converter." Energies 17, no. 7 (2024): 1649. http://dx.doi.org/10.3390/en17071649.

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To enhance the power density of LLC resonant converters, multilayer planar inductors are required. However, multilayer planar inductors have high parasitic capacitance, which may cause inductor current ringing in LLC resonant converters, leading to EMI problems. In this paper, it is found that by using interleaved winding inductors, compared with traditional winding inductors, the parasitic capacitance of multilayer planar inductors is reduced, which can reduce current ringing, without sacrificing power density and increasing manufacturing complexity. The method used to analyze current ringing

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17

Mapato, Manot, Prapong Klysuban, Thanatchai Kulworawanichpong, and Nimit Chomnawang. "Metal-embedded SU-8 Slab Techniques for Low-resistance Micromachined Inductors." International Journal of Electrical and Computer Engineering (IJECE) 8, no. 6 (2018): 4772. http://dx.doi.org/10.11591/ijece.v8i6.pp4772-4780.

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This work presents a new fabrication technique for micro power inductors by using metal-embedded SU-8 slab molding techniques. The proposed technique uses X-ray lithography to fabricate high-aspect-ratio LIGA-like microstructures in form of embedded structures in the SU-8 slab. This process was applied to fabricate an inductor’s windings with an aspect ratio of 10, which can provide very low resistance but still preserve a small form factor and low profile. Inductors were designed as pot-core structures with overall heights of 370 μm and embedded with 250-μm-thick windings. From the advantage

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18

Wu, Jinguo, Yujie Zhang, Bin Yang, Sihan Li, and Haipeng Song. "Electromagnetic Fields Calculation and Optimization of Structural Parameters for Axial and Radial Helical Air-Core Inductors." Electronics 13, no. 17 (2024): 3463. http://dx.doi.org/10.3390/electronics13173463.

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To improve the current density distribution and electromagnetic performance of air-core inductors, a structural optimization method combining back-propagation(BP) neural network and genetic algorithm(GA) is proposed for the study of axial and radial spiral multi-winding inductors. The Monte Carlo method was used to extract the structural size samples of the inductors, and the training dataset was obtained through the finite element calculation of electromagnetic fields. Based on BP neural networks, nonlinear mapping models between the inductance value, volumetric inductance density, current di

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19

Pacurar, Claudia, Vasile Topa, Claudia Constantinescu, et al. "Adapting the Formula for Planar Spiral Inductors’ Inductance Computation to the New Oval Geometric Shape, Ideal for Designing Wireless Power Transfer Systems for Smart Devices." Mathematics 13, no. 3 (2025): 348. https://doi.org/10.3390/math13030348.

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The most used spiral inductors, in the available scientific literature and in our research activities, so far, have been those with square, hexagonal, octagonal, and circular geometric shapes. Geometry plays an important role in the efficiency of these inductors when used in wireless power transfer. In this article, a new geometric shape is designed by combining the square and the circle to create an oval shape of a planar spiral inductor. Inductors with this new shape are designed, numerically modelled, and practically constructed for experimental testing. The formula for inductance computati

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20

Li, Biyu, Hu Wang, Fenglin Cai, Wei Xie, and Yang Zeng. "Research on the Magnetic Integration of Inductors for High-Power DC Transformers—A Case Study on Electric Roadways." Energies 18, no. 7 (2025): 1859. https://doi.org/10.3390/en18071859.

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With the growth of renewable energy, electrified highways can efficiently utilize green energy such as solar and wind for EVs, promoting sustainable transportation and carbon reduction, and accelerating the transition to a greener future. For high-power DC/DC converters in electrified roadways, a lightweight and compact design is crucial, but inductors limit progress. Therefore, this study focuses on the magnetic integration of DC/DC chopping inductors. It first selected and optimized the decoupled magnetic integration form, initial electromagnetic parameters, and core sizes based on circuit t

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21

Cai, Hua-Lin, Jing Zhan, Chen Yang, et al. "Application of Ferrite Nanomaterial in RF On-Chip Inductors." Journal of Nanomaterials 2013 (2013): 1–12. http://dx.doi.org/10.1155/2013/832401.

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Several kinds of ferrite-integrated on-chip inductors are presented. Ferrite nanomaterial applied in RF on-chip inductors is prepared and analyzed to show the properties of high permeability, high ferromagnetic resonance frequency, high resistivity, and low loss, which has the potential that will improve the performance of RF on-chip inductors. Simulations of different coil and ferrite nanomaterial parameters, inductor structures, and surrounding structures are also conducted to achieve the trend of gains of inductance and quality factor of on-chip inductors. By integrating the prepared ferrit

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22

Dmitrikov, Vladimir F., Alexander Yu Petrochenko, Vyacheslav M. Isaev, and Dmitriy V. Shushpanov. "Features of designing line radio interference filter in a wide frequency range, taking into account equivalent circuits for capacitors and inductors." Physics of Wave Processes and Radio Systems 23, no. 4 (2021): 85–96. http://dx.doi.org/10.18469/1810-3189.2020.23.4.85-96.

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Based on the phenomenological equations describing the dynamic processes of magnetization of ferromagnets of inductors and polarization of capacitor dielectrics, taking into account complex frequency-dependent dielectric constants e(jw) of capacitor dielectrics and magnetic permeabilities m(jw) of inductor cores, equivalent electrical structural-parametric and capacitor replacement circuits were obtained. The connection of parasitic elements of equivalent electric circuits of capacitors and inductors with the electrophysical characteristics of the material of the dielectric of the capacitor an

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23

Martynov, D. V., Y. V. Rudenko, and V. V. Martynov. "Improving the operation of an asymmetric inverter with magnetically coupled inductors for energy storage systems." Electrical Engineering & Electromechanics, no. 4 (July 2, 2025): 53–58. https://doi.org/10.20998/2074-272x.2025.4.07.

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Introduction. Bidirectional DC-DC converters are widely used in energy storage systems for efficient energy transfer. One of the effective converters for such systems is the asymmetric inverter with a magnetically coupled inductors. To enhance the efficiency of this converter for energy storage applications, it is necessary to optimize its parameters. Objective. The objective is to develop a mathematical model of an asymmetric inverter with magnetically coupled inductors and based on this model, to establish the conditions for improving the energy efficiency of the inverter in energy storage s

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24

Feng, Mingkun, Huihui Guo, and Tingting Liu. "Automatic Design of Planar Spiral Inductors Based on Improved Artificial Bee Colony Algorithm." Journal of Physics: Conference Series 2666, no. 1 (2023): 012045. http://dx.doi.org/10.1088/1742-6596/2666/1/012045.

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Abstract Aiming at the low design efficiency of planar spiral inductors in Integrated Passive Devices (IPD), a design scheme for automatically searching the optimal parameters of planar spiral inductors is presented based on the Improved Artificial Bee Colony (IABC) algorithm. By improving the single π model, the universality of the inductor equivalent model is improved, and the extracted model is convenient for the parameter optimization of the inductor. The artificial bee colony (ABC) algorithm is improved by introducing multi-neighborhood topology (MNT) and modification rate mechanism, whic

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Zharkin, A. F., Yu M. Goryslavets, O. I. Gluhenky, and R. V. Belyanin. "MULTILAYER INDUCTORS FOR INDUCTION HEAT TREATMENT INSTALLATION OF ALUMINUM CASTINGS WHEN PRESSING RODS FOR POWER CABLES." Praci Institutu elektrodinamiki Nacionalanoi akademii nauk Ukraini 2024, no. 68 (2024): 13–22. http://dx.doi.org/10.15407/publishing2024.68.013.

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On the basis of the developed mathematical model, computer (numerical) modeling of electrothermal processes in a multi-layer inductor installation, which is used for heating cylindrical aluminum ingots (blanks) before pressing the wire rod, as a basis for obtaining current-conducting cores of power cables from it, was carried out. Single-phase and three-phase multilayer inductors of the galette type were studied, as a result of which it was shown that the maximum value of the electrical efficiency of such an installation for both inductors is provided by their three-layer winding with a water-

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M. Maric, Andrea, Goran J. Radosavljevic, Walter Smetana, and Ljiljana D. Zivanov. "Comparison of LTCC inductors on different substrate configurations with PCB inductor." Microelectronics International 31, no. 1 (2013): 32–41. http://dx.doi.org/10.1108/mi-04-2013-0017.

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Purpose – This paper presents performance comparison of RF inductors with the same lateral geometry applying different substrate configurations. The purpose of presented research is to demonstrate and verify some advantages of low temperature co-fired ceramic (LTCC) technology in comparison to printed circuit board (PCB) technology based on the performance analysis of presented inductors in lower RF range. Design/methodology/approach – The presented inductors are meander structures fabricated in LTCC and PCB technology, with same line width and outer dimensions. Performance analysis of all con

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Li, Yiyuan, Jianhua Li, and Lixin Xu. "Method of Calculating the Inductance Value of MEMS Suspended Inductors with Silicon Substrates." Micromachines 9, no. 11 (2018): 604. http://dx.doi.org/10.3390/mi9110604.

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Microelectromechanical system (MEMS) suspended inductors have excellent radio-frequency (RF) performance. The inductance value is one of the main features that characterizes the performance of inductors. It is important to consider the influence of the substrate and the suspension height in calculating the inductance value accurately. In this paper, a method is proposed to calculate the inductance value of the MEMS suspended inductor wire with a silicon substrate, as the wire is the basic component of the inductor coil. Then the method is extended to the suspended inductors consisting of a sin

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Abdelhadi, Namoune, Taleb Rachid, and Mansour Noureddine. "Design and modeling of solenoid inductor integrated with FeNiCo in high frequency." TELKOMNIKA Telecommunication, Computing, Electronics and Control 18, no. 4 (2020): 1746–53. https://doi.org/10.12928/TELKOMNIKA.v18i4.12139.

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In this work, the design and modeling of the solenoid inductor are discussed. The layout of integrated inductors with magnetic cores and their geometrical parameters are developed. The quality factor Q and inductance value L are derived from the S-parameters and plotted versus frequency. The effect of solenoid inductor geometry on inductance and quality factor are studied via simulation using MATLAB. The solenoid inductor geometry parameters considered are the turn’s number, the magnetic core length, the width of a magnetic core, the gap between turns, the magnetic core thickness, the co

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Aihsan, M. Z., A. M. Yusof, Hasliza A. Rahim, et al. "Comparative investigations on different types of inductors in single-phase inverter." Journal of Physics: Conference Series 2107, no. 1 (2021): 012051. http://dx.doi.org/10.1088/1742-6596/2107/1/012051.

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Abstract This article organized in two sections where it compares the performance of single-phase inverters using various types of inductors with differences modulation technique of pulse width modulation (PWM). Not all inductors perform the same function, even the inductance value is the same. The study will investigate the capability of each inductor on its performance to convert the unfiltered AC voltage into filtered sinusoidal AC voltage. The drum core and toroidal core inductors were used in this investigation. For both inductors, the performance will be analyzed based on Bipolar and Uni

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Ali Hikmat Akhmadov, Mehman Omarov, Ali Hikmat Akhmadov, Mehman Omarov. "СOMPARATIVE STUDY OF CENTRIFUGAL PUMP". ETM - Equipment, Technologies, Materials 11, № 03 (2022): 70–74. http://dx.doi.org/10.36962/etm11032022-70.

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In this study, a centrifugal pump was analyzed to examine the effect of the use of inductors on its performance. Tests have been carried out to obtain optimal hydraulic performance before and after using the inductor. We used two types of inductors (axial inductors, screw inductors). For this, a test setup with a pumping system was specially designed to investigate the parameters under consideration. In this study, a simulation of the performance of a centrifugal pump in combination with inductors using CFD is presented for comparison with experimentally observed values. The model explores the

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Wang, Gang, Houfang Liu, Xiaoning Li, Haochuan Qiu, Yi Yang, and Tian-Ling Ren. "Novel on-chip spiral inductors with back hollow structure." Modern Physics Letters B 31, no. 01 (2017): 1650430. http://dx.doi.org/10.1142/s0217984916504303.

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In this work, on-chip spiral inductors with back hollow structure have been prepared on the 500 [Formula: see text] thick silicon substrate with high resistivity [Formula: see text]. The silicon underneath the inductor region has been completely etched by deep etching process in order to reduce the substrate eddy current losses. Several types of square spiral on-chip inductors with different metal width (w) and line spacing (s) in the case of [Formula: see text] were fabricated. The experimental results are verified by FEM simulation using HFSS software. The results show that the Q-factor and

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Xu, Jingtao, Hao Wang, and Bin Liu. "Unified Inductor Type Based Linear Resonant Hybrid Converter for Wide Voltage Range Applications." Energies 18, no. 10 (2025): 2572. https://doi.org/10.3390/en18102572.

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Pulse frequency modulation (PFM) is widely used in LLC resonant converters. However, in wide voltage applications, the switching frequency range is very wide, which affects the performance of magnetic components and filters. In order to achieve wide voltage gain in a narrow frequency range, this paper proposes a unified inductor type based linear resonant hybrid converter (UITBLRHC). The resonant inductor and excitation inductor are unified, and the resonant tank with equal inductance ratio is achieved. Hence, the output voltage can be adjusted within a very narrow frequency range. In addition

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Zhang, Wenli, Yipeng Su, and Fred C. Lee. "Multilayer Ferrite Inductor Substrate for Ceramic-Based High Current Point-of-Load (POL) Converter." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2016, CICMT (2016): 000039–46. http://dx.doi.org/10.4071/2016cicmt-tp2a2.

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Abstract High power-density and high efficiency are the two driving forces for point-of-load (POL) converters used in portable electronics and other applications where system miniaturization is required. Discrete passive components, especially bulky inductors, have become the bottleneck for downsizing POL converters. Low-temperature sintered Ni-Cu-Zn ferrite tapes for multilayer chip inductors have been widely studied and used in high-frequency power electronics applications. In our previous study, a low-profile, planar inductor substrate with lateral flux pattern was fabricated using mixed co

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Xu, Lixin, Yiyuan Li, and Jianhua Li. "Analysis of the Failure and Performance Variation Mechanism of MEMS Suspended Inductors with Auxiliary Pillars under High-g Shock." Micromachines 11, no. 11 (2020): 957. http://dx.doi.org/10.3390/mi11110957.

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Microelectromechanical systems (MEMS) suspended inductors have excellent radio frequency (RF) performance and they are compatible with integrated circuit (IC). They will be shocked during manufacturing, transportation, and operation; in some applications, the shock amplitude can be as high as tens of thousands of gravitational acceleration (g, 9.8 m/s2). High-g shock will lead to the inductor deformation which affects its performance or even failure of the inductor structure. However, few studies have been carried out on the inductors under high-g shock. In this study, a kind of MEMS suspended

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BALCI, Selami, and Kadir SABANCI. "Performance analysis in a two-phase interleaved DC-DC boost converter with coupled inductors." International Journal of Applied Mathematics Electronics and Computers 10, no. 4 (2022): 76–83. http://dx.doi.org/10.18100/ijamec.1195840.

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In this study, the inductor current ripple and output voltage ripple of a two-phase DC-DC boost converter, circuit performance is investigated according to the direct/inverse coupling effect of the coupled inductors. The coupled inductors are modeled with both power electronics circuit and electromagnetic modeling and by using finite element analysis software (FEA). However, the high frequency inductor designs generally use air-gapped composite ceramic ferrite cores and are designed with powder core (Kool Mu) core structures that eliminate air gap requirements. Thus, the fringe flux, which occ

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Boo, K. K., Ovinis Mark, and Nagarajan Thirumalaiswamy. "Thermal and Magnetisms Design of an Inductor Using Finite Element Method." Advanced Materials Research 622-623 (December 2012): 130–35. http://dx.doi.org/10.4028/www.scientific.net/amr.622-623.130.

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Thermal stress points in an inductor can cause insulation deterioration and ageing, leading to winding faults, while high magnetic flux causes interference. In this paper, the thermal and magnetic behaviors of inductors with different winding geometries are investigated using the Finite Element Method (FEM) based on 2-Dimension and 3-Dimension model of an inductor. Inductors with different winding geometries have different thermal envelopes and the geometry with the slowest thermal transition has fewer thermal stress points potentially reducing winding faults at the conductor. Furthermore, slo

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BARTOLI, M., N. NOFERI, A. REATTI, and M. K. KAZIMIERCZUK. "MODELLING WINDING LOSSES IN HIGH-FREQUENCY POWER INDUCTORS." Journal of Circuits, Systems and Computers 05, no. 04 (1995): 607–26. http://dx.doi.org/10.1142/s0218126695000370.

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A high-frequency model of iron-powder-core inductors is studied. The skin and proximity effects that cause the winding parasitic resistance to increase with the operating frequency are considered. The inductor self-resonance due to the parasitic capacitances is taken into account as well. The frequency response of the inductor model is compared to that of an experimentally tested iron-powder-core inductor. Expressions giving the ac resistance as a function of the operating frequency are given. These expressions allow for an accurate prediction of the inductor power loss over a wide frequency r

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Herrault, Florian, M. Yajima, M. Chen, C. McGuire, and A. Margomenos. "Silicon-Embedded RF Micro-Inductors for Ultra-Compact RF Subsystems." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2015, DPC (2015): 000939–57. http://dx.doi.org/10.4071/2015dpc-tp44.

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Advances in 2.5D and 3D integration technologies are enabling ultra-compact multi-chip modules. In this abstract, we present the design, fabrication, and experimental characterization of RF inductors microfabricated inside deep silicon recesses. Because silicon is often used as a substrate of packaging material for 3D integration and microelectromechanical systems (MEMS), developing microfabrication technologies to embed passive components in the unused volume of the silicon package is a promising approach to realize ultra-compact RF subsystems. Inductors and capacitors are critical in dc-bias

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Marić, Andrea, Goran Radosavljević, Nelu Blaž, Walter Smetana, and Ljiljana Živanov. "Embedded Ferrite LTCC Inductors." Additional Conferences (Device Packaging, HiTEC, HiTEN, and CICMT) 2012, CICMT (2012): 000388–93. http://dx.doi.org/10.4071/cicmt-2012-wa48.

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This paper presents for the first time one realization of simple planar inductor realized inside the stack of ferrite LTCC (Low Temperature Co-fired Ceramic) tapes. Presented inductor is one layer square spiral fabricated in the LTCC technology. In order to point out benefits of implementation of ferrite material on inductor inductance, the same inductor geometry was fabricated between two dielectric LTCC tapes. Commercially available LTCC material (both ferrite and dielectric) were implemented for the realization of proposed inductors. Designed structures were characterized and obtained exper

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Gong, Renxi, Jing Tang, Xingyuan Wan, and Hao Wu. "New Multicell Switched-Inductor Quasi-Z-Source Inverter." Electronics 12, no. 18 (2023): 3814. http://dx.doi.org/10.3390/electronics12183814.

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To address the problems of quasi-Z-source inverters with limited boosting ability and high voltage stress, a novel class of multicell switched-inductor quasi-Z-source inverters is proposed. The new inverter is based on the quasi-Z-source inverter in which the inductors in the impedance source network are replaced by a multicell switched-inductors. In this paper, a detailed description of the topology and operating principle of the new inverter is first made. Then, a deep comparison of the proposed topology with the existing topologies is performed by selecting the appropriate number of switche

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Choi, Gyeong Ryun, HyongJoo Kim, Yonggi Hong, Joosung Hwang, Euihyuk Kim, and Wansoo Nah. "Near-Field Coupling Effect Analysis of SMD Inductor Using 3D-EM Model." Electronics 12, no. 13 (2023): 2845. http://dx.doi.org/10.3390/electronics12132845.

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In this paper, we propose a methodology for analyzing the near-field coupling between two surface mount device (SMD) inductors using a 3-dimensional electromagnetic (3D-EM) model. To develop the 3D-EM model, we first constitute the equivalent circuit of the SMD inductor from the measured impedance and derive the loss tangent using circuit parameters. Secondly, the loss tangent using damped harmonic oscillator model is introduced to extract the effective permeability of core magnetic material in the SMD inductor. The optimization algorithm is used to compare the two loss tangents. Then the effe

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Yi, Cheng, Xingyu Pi, Hongyu Chen, Xinrong Li, and Xuecheng Sun. "The simulation study of high-performance micro-inductors Based on MEMS 3D coils." Journal of Physics: Conference Series 2703, no. 1 (2024): 012054. http://dx.doi.org/10.1088/1742-6596/2703/1/012054.

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Abstract With the development of flexible electronics and microsystems, the demand for the miniaturization of electronic components is becoming increasingly urgent. Due to the advantages of miniaturization, low power consumption, and easy integration, the micro-inductors fabricated by microfabrication technology get more and more attention. However, the traditional two-dimensional inductors are no longer able to meet the growing needs of today’s society in terms of occupied areas, inductance values, and packaging costs. So, this paper proposes a three-dimensional structure thin film solenoid m

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Nizar, Habbachi, and Besbes Kamel. "Tunable RF MEMS Inductors for Two-Frequency Bands." WSEAS TRANSACTIONS ON ELECTRONICS 15 (April 2, 2024): 11–16. http://dx.doi.org/10.37394/232017.2024.15.2.

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This paper presents the design and simulation of two-variable MEMS inductors for high-frequency applications. In two cases, the inductors' cores are enclosed between two tunable metal plates. The medium permeability changes in response to iron plate movement, ensuring a high-tuning range above 250%. The first inductor is designed for the 10 GHz range, and the inductance value is comprised of Lmin = 3.37 nH and increases to Lmax = 11.8 nH. Similar inductance values are obtained for the second inductor, but it is designed to work at 20 GHz. Furthermore, the maximum value of the quality factor of

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Pacurar, Claudia, Vasile Topa, Adina Giurgiuman, et al. "High Frequency Analysis and Optimization of Planar Spiral Inductors Used in Microelectronic Circuits." Electronics 10, no. 23 (2021): 2897. http://dx.doi.org/10.3390/electronics10232897.

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This paper deals with high frequency analysis of spiral inductors, used in microelectronics circuits, to optimize their configuration. Software developed, designed, and implemented by the authors for nano and micrometre spiral inductor high frequency analysis, named ABSIF, is presented in this paper. ABSIF determines the inductance, quality factor, and electrical parameters for square, hexagonal, octagonal, and circular spiral inductors and their configuration optimization for energy efficiency. ABSIF is a good tool for spiral inductor design optimization in high frequency applications and tak

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Li, Liangyu, Weisong Wang, Eunsung Shin, and Guru Subramanyam. "Tunable Inductors Using Integrated Vanadium Dioxide Phase Change Thin Films." Advances in Condensed Matter Physics 2018 (2018): 1–7. http://dx.doi.org/10.1155/2018/3468017.

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This paper presents tunable inductors designed with vanadium dioxide (VO2) thin film to implement tunability. Two types of configurations, a single line coil inductor and a dual line coil inductor, are proposed. Tunable inductance is realized by thermally controlling VO2 thin film stub to be an insulator or a conductor. The measurements of inductors are taken in the frequencies range from 0.01 GHz to 10 GHz. The electrical model has been developed to derive the corresponding inductance. The results show that the tuning range is about 69% when the temperature changes from room temperature to ab

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Cheng, Hung-Liang, Lain-Chyr Hwang, Heidi H. Chang, Qi-You Wang, and Chun-An Cheng. "High-Efficiency Flicker-Free LED Driver with Soft-Switching Feature." Micromachines 13, no. 5 (2022): 797. http://dx.doi.org/10.3390/mi13050797.

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A novel interleaved DC-DC buck converter is proposed to drive high-brightness light-emitting diodes (LEDs). The circuit configuration mainly consists of two buck converters, which are connected in parallel and use interleaved operation. Through interleaved operation, the power capability of the converter is doubled. Traditionally, two individual inductors are used in the two buck converters. The difference between conventional parallel-operated buck converters using two energy storage inductors and the proposed circuit is that the proposed circuit uses two small inductors and a coupled inducto

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Wang, Xinning, Chong Li, Dalei Song, and Robert Dean. "A Nonlinear Circuit Analysis Technique for Time-Variant Inductor Systems." Sensors 19, no. 10 (2019): 2321. http://dx.doi.org/10.3390/s19102321.

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Time-variant inductors exist in many industrial applications, including sensors and actuators. In some applications, this characteristic can be deleterious, for example, resulting in inductive loss through eddy currents in motors designed for high efficiency operation. Therefore, it is important to investigate the electrical dynamics of systems with time-variant inductors. However, circuit analysis with time-variant inductors is nonlinear, resulting in difficulties in obtaining a closed form solution. Typical numerical algorithms used to solve the nonlinear differential equations are time cons

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Scirè, Daniele, Giuseppe Lullo, and Gianpaolo Vitale. "Non-Linear Inductor Models Comparison for Switched-Mode Power Supplies Applications." Electronics 11, no. 15 (2022): 2472. http://dx.doi.org/10.3390/electronics11152472.

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The use of non-linear power inductors, intended as devices exploited up to a current at which the inductance is halved, is of great interest in switched-mode power supplies (SMPSs). Indeed, it allows the use of lighter and cheaper inductors improving the power density. On the other hand, the analysis of SMPSs equipped with non-linear inductors requires appropriate modeling of the inductor reproducing the inductance versus current. This paper compares two main analytical models proposed in the literature: the former is based on a polynomial, and the latter exploits the arctangent function to re

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Chen, Hao-Hui, and Yao-Wen Hsu. "Analytic Design of on-Chip Spiral Inductor with Variable Line Width." Electronics 11, no. 13 (2022): 2029. http://dx.doi.org/10.3390/electronics11132029.

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On-chip spiral inductors with variable line width layouts are known for their high quality factor (Q-factor). In this paper, we present an analytical approach to facilitate the design of such inductors. Based on an analysis of ohmic and eddy-current losses, we first derive an analytical formula for the metal resistance calculation of a spiral inductor. By minimizing the metal resistance, a simple design equation for finding the proper line width of each coil is then presented. Several 0.18 μm CMOS spiral inductors are investigated, via electromagnetic simulations and experimental studies, to t

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Al-Shamma’a, Abdullrahman A., Abdullah M. Noman, Khaled E. Addoweesh, Ayman A. Alabduljabbar, and A. I. Alolah. "Analytical Approach to Circulating Current Mitigation in Hexagram Converter-Based Grid-Connected Photovoltaic Systems Using Multiwinding Coupled Inductors." International Journal of Photoenergy 2018 (2018): 1–22. http://dx.doi.org/10.1155/2018/9164528.

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The hexagram multilevel converter (HMC) is composed of six conventional two-level voltage source converters (VSCs), where each VSC module is connected to a string of PV arrays. The VSC modules are connected through inductors, which are essential to minimize the circulating current. Selecting inductors with suitable inductance is no simple process, where the inductance value should be large to minimize the circulating current as well as small to reduce an extra voltage drop. This paper analyzes the utilization of a multiwinding (e.g., two, three, and six windings) coupled inductor to interconne

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