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Thematische Bibliographien / Coupled Inductance / Zeitschriftenartikel

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Zeitschriftenartikel zum Thema „Coupled Inductance“

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Veröffentlicht am 25. Mai 2024

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1

Chiang, Yen-Chung, Juo-Chen Chen und Yu-Hsin Chang. „A Study on the Variable Inductor Design by Switching the Main Paths and the Coupling Coils“. Electronics 10, Nr. 15 (02.08.2021): 1856. http://dx.doi.org/10.3390/electronics10151856.

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In a radio frequency (RF) system, it is possible to use variable inductors for providing tunable or selective frequency range. Variable inductors can be implemented by the microelectromechanical system (MEMS) process or by using transistors as switches to change the routing of coils or coupling quantities. In this paper, we investigated the design method of a variable inductor by using MOS transistors to switch the main coil paths and the secondary coupled coils. We observed the effects of different metal layers, turn numbers, and layout arrangements for secondary-coupled coils and compared their characteristics on the inductances and quality factors. We implemented two chips in the 0.18 μm CMOS process technology for each kind of arrangement for verification. One inductor can achieve inductance values from about 300 pH to 550 pH, and the other is between 300 pH and 575 pH, corresponding to 59.3% and 62.5%, respectively, inductance variation range at 4 GHz frequency. Additionally, their fine step sizes of the switched inductances are from 0.5% to 6% for one design, and 1% to 12.5% for the other. We found that both designs achieved a large inductance tuning range and moderate inductance step sizes with a slight difference behavior on the inductance variation versus frequency.

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2

Wang, Gang, Qiyu Hu, Chunyu Xu, Bin Zhao und Xiaobao Su. „Analysis and Pareto Frontier Based Tradeoff Design of an Integrated Magnetic Structure for a CLLC Resonant Converter“. Energies 14, Nr. 6 (22.03.2021): 1756. http://dx.doi.org/10.3390/en14061756.

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This paper proposes an integrated magnetic structure for a CLLC resonant converter. With the proposed integrated magnetic structure, two resonant inductances and the transformer are integrated into one magnetic core, which improves the power density of the CLLC resonant converter. In the proposed integrated magnetic structure, two resonant inductances are decoupled with the transformer and can be adjusted by the number of turns in each inductance. Furthermore, two resonant inductances are coupled to reduce the number of turns in each inductance. As a result, the conduction loss can be reduced. The trade-off design of the integrated magnetic structure is carried out based on the Pareto optimization procedure. With the Pareto optimization procedure, both high efficiency and high-power density can be achieved. The proposed integrated magnetic structure is validated by theoretical analysis, simulations, and experiments.

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3

Horyachko, Vsevolod, Orest Hamola und Taras Ryzhyi. „Determination of parameters of magnetically coupled coils based on mathematical models of their magnetic circuits“. Computational Problems of Electrical Engineering 12, Nr. 2 (06.10.2022): 1–4. http://dx.doi.org/10.23939/jcpee2022.02.001.

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Calculation of electromagnetic parameters of static and dynamic magnetically coupled inductors based on mathematical models of their magnetic circuits is proposed. The inductance and mutual inductance of such coils are determined using the geometric dimensions of the coils themselves, their relative location, and the physical parameters of the environment.

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4

Ding, Xin-ping, Lei Yu, Dai-ling Yu und Hong-xing Zhang. „Coupled Inductance Three-Level Cuk Converter“. Journal of Physics: Conference Series 1284 (August 2019): 012012. http://dx.doi.org/10.1088/1742-6596/1284/1/012012.

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5

Day, P. K., H. G. Leduc, A. Goldin, T. Vayonakis, B. A. Mazin, S. Kumar, J. Gao und J. Zmuidzinas. „Antenna-coupled microwave kinetic inductance detectors“. Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 559, Nr. 2 (April 2006): 561–63. http://dx.doi.org/10.1016/j.nima.2005.12.057.

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6

Al-Shamma’a, Abdullrahman A., Abdullah M. Noman, Khaled E. Addoweesh, Ayman A. Alabduljabbar und 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 interconnect the six VSC modules instead of six single inductors, to minimize the circulating current inside the HMC. Then, a theoretical relationship between the total impedance to the circulating current, the number of coupled inductor windings, and the magnetizing inductance is derived. Owing to the coupled inductors, the impedance on the circulating current path is a multiple of six times the magnetizing inductance, whereas the terminal voltage is slightly affected by the leakage inductance. The HMC is controlled to work under variable solar radiation, providing active power to the grid. Additional functions such as DSTATCOM, during daytime, are also demonstrated. The controller performance is found to be satisfactory for both active and reactive power supplies.

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7

Lymar, Daria S., Timothy C. Neugebauer und David J. Perreault. „Coupled-Magnetic Filters With Adaptive Inductance Cancellation“. IEEE Transactions on Power Electronics 21, Nr. 6 (November 2006): 1529–40. http://dx.doi.org/10.1109/tpel.2006.882975.

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8

Kang, J. F., R. Q. Han, G. C. Xiong, X. Y. Liu und Y. Y. Wang. „Kinetic inductance of coupled superconducting microstrip lines“. Physica C: Superconductivity and its Applications 282-287 (August 1997): 2529–30. http://dx.doi.org/10.1016/s0921-4534(97)01333-6.

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9

Baryshev, Andrey, Jochem J. A. Baselmans, Angelo Freni, Giampiero Gerini, Henk Hoevers, Annalisa Iacono und Andrea Neto. „Progress in Antenna Coupled Kinetic Inductance Detectors“. IEEE Transactions on Terahertz Science and Technology 1, Nr. 1 (September 2011): 112–23. http://dx.doi.org/10.1109/tthz.2011.2159532.

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10

Zhang, Xu, und Guo Ying Meng. „Theoretical Analysis of Power Transfer Performance of Primary and Secondary Compensation Topology of Inductive Coupled Power Transfer System“. Advanced Materials Research 529 (Juni 2012): 43–48. http://dx.doi.org/10.4028/www.scientific.net/amr.529.43.

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Inductive coupled power transfer system is based on the principle of electromagnetic induction to transfer power from the primary side to the secondary side of a loosely coupled transformer, which can transfer electricity wirelessly. The loosely coupled transformer has large leakage inductance, which reduces the power transfer efficiency. In order to reduce the leakage inductance, a capacitance is used at the primary side and secondary side of a loosely coupled transformer, which can increase the power transfer efficiency. For four different compensation structures, this paper analyses the coupling coefficient and the secondary quality factor’s influence on the voltage gain, current gain and transfer efficiency, and also compares different compensation structures

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11

Bernat, Jakub, Jakub Kołota, Sławomir Stępień und Grzegorz Szymański. „An inductance lookup table application for analysis of reluctance stepper motor model“. Archives of Electrical Engineering 60, Nr. 1 (01.03.2011): 15–21. http://dx.doi.org/10.2478/v10171-011-0002-y.

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An inductance lookup table application for analysis of reluctance stepper motor model This research presents a method of modeling and numerical simulation of a reluctance stepper motor using reduced finite-element time-stepping technique. In presented model, the circuit equations are reduced to non-stationary differential equations, i.e. the inductance mapping technique is used to find relationship between coil inductance and rotor position. A strongly coupled field-circuit model of the stepper motor is presented. In analyzed model the magnetostatic field partial differential equations are coupled with rotor motion equation and solved simultaneously in each iterative step. The nonlinearity problem is solved using Newton-Raphson method with spline approximation of the B-H curve.

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12

Zhang, Tuanshan, und Xuesong Mei. „Inductance Analysis of Two-Phase Winding Segmented Permanent Magnet Linear Synchronous Motor“. Symmetry 14, Nr. 6 (08.06.2022): 1180. http://dx.doi.org/10.3390/sym14061180.

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The inductance of a winding segmented permanent magnet linear synchronous motor (WS-PMLSM) is affected by winding disconnection and coupling length variation, which makes the variation of inductance more complicated, and this paper proposes incremental inductance, apparent inductance, and positional inductance to reveal this phenomenon, which gives a theoretical basis for mathematical modeling and thrust fluctuation suppression. First, an analytical approach is used to derive a fully coupled state model using the magnetomotive force and specific permeability function. Second, the domain of the specific permeability function is extended and the inductance expressions are calculated for the whole moving range. Finally, the inductance of the prototype WS-PMLSM with a two-phase winding is experimentally verified, and it is proposed that the effects of the three inductive components on the system should be considered comprehensively when implementing control of the WS-PMLSM.

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13

Aboubi, Fatma Zohra, Abdrahamane Maïga, Jérôme Cros und Innocent Kamwa. „Experimental Identification of a Coupled-Circuit Model for the Digital Twin of a Wound-Rotor Induction Machine“. Energies 17, Nr. 8 (19.04.2024): 1948. http://dx.doi.org/10.3390/en17081948.

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The development of monitoring and diagnostic methods for electrical machines requires the use of transient models capable of operating in real time and producing signal signatures with high precision. In this context, coupled-circuit models offer numerous advantages due to their speed of execution and accuracy. They have been successfully employed to create real-time digital twins of electrical machines. The main challenge of this modeling method lies in the preparation of the model, which involves numerous preliminary calculations and takes time to identify all its parameters. This is particularly due to the variation in inductances based on the rotor position. To determine these inductance values with great precision, the classical approach involves using finite-element field calculation software. However, the computation time quickly becomes an issue due to the large number of values to calculate and simulations to perform. This article introduces an innovative experimental approach to identify a coupled-circuit model and develop a digital twin of a wound-rotor induction machine. This method relies solely on simple electrical measurements and tests conducted at extremely low rotation speeds (1 rpm) to obtain inductance variations as a function of the rotor position. By employing this technique, the need for analytical models or finite-element field calculation simulations, which typically require precise knowledge of the machine’s geometry and materials, is circumvented. The measurement processing employs optimization methods to extract the inductances as a function of the rotor position, which are then used as input data for the coupled-circuit model. The final parameters are specific to each machine and replicate all its manufacturing imperfections such as eccentricity and geometric or winding defects. This experimental identification method significantly enhances the model’s accuracy and reduces the usually required preliminary calculation time in a finite-element-based identification process.

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14

Wang, Jinyu, Chenyu Wang und Feixiang Miao. „Structural Optimization Design of Rotary Loose Coupler“. Scientific Journal of Technology 4, Nr. 6 (20.06.2022): 10–16. http://dx.doi.org/10.54691/sjt.v4i6.875.

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The loose coupling transformer, the core component of the rotary wireless excitation system, has a large leakage inductance due to the existence of a large gap, and the coupling coefficient cannot be effectively improved, thus limiting the improvement of the system efficiency. In order to solve this problem, firstly, the equivalent modeling and leakage inductance analysis of the rotary loosely coupled transformer are carried out, and the improved design is carried out according to the defects of common windings, and an improved shaft rotary coupler is proposed. The feasibility of this optimized structure was determined using Ansys/Maxwell simulation analysis software. The S-S resonance compensation scheme is designed, and the co-simulation with Simplorer and Maxwell is used to compare the coupling coefficient and transmission efficiency of the loosely coupled transformer before and after the improvement under the condition of large air gap, and the rationality of the proposed scheme is verified.

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15

Romlie, Mohd Fakhizan, Kevin Lau, Mohd Zaifulrizal Zainol, Mohd Faris Abdullah und Ramani Kannan. „Performance of Inductive Coupled Power Transfer Versus the Coil Shape - Investigation using Finite Element Analysis“. MATEC Web of Conferences 225 (2018): 01017. http://dx.doi.org/10.1051/matecconf/201822501017.

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The objective of this paper is to investigate the impact of the spiral coil shape of inductive coupled power transfer on its performance. The coil shapes evaluated are: circular, square and pentagon spiral shapes. The coils are modelled in Ansoft Maxwell software. Simulations are carried out to determine the mutual inductance, coupling coefficient and magnetic flux density. The performance in term of magnetic flux density, mutual inductance and coupling coefficient of the three coils shapes are compared. Of the three shapes, the pentagon is shown to have the best performance in term of its mutual inductance, coupling coefficient and magnetic flux density.

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16

Chen, Woei‐Luen, und Bo‐Yuan Jiang. „Coupled inductance design for grid‐connected photovoltaic inverters“. IET Power Electronics 8, Nr. 11 (November 2015): 2204–13. http://dx.doi.org/10.1049/iet-pel.2014.0801.

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17

Chen, K. R., Y. Han, L. F. Guo, N. N. Gao, Y. Pei und P. Li. „The Inductance Parameter Study of Loose Coupled Transformer“. IOP Conference Series: Earth and Environmental Science 86 (Oktober 2017): 012030. http://dx.doi.org/10.1088/1755-1315/86/1/012030.

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18

Ludwig, G. W., und S. A. El-Hamamsy. „Coupled inductance and reluctance models of magnetic components“. IEEE Transactions on Power Electronics 6, Nr. 2 (April 1991): 240–50. http://dx.doi.org/10.1109/63.76810.

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19

Hu, Jie, Maria Salatino, Alessandro Traini, Christine Chaumont, Faouzi Boussaha, Christophe Goupil und Michel Piat. „Proximity-Coupled Al/Au Bilayer Kinetic Inductance Detectors“. Journal of Low Temperature Physics 199, Nr. 1-2 (07.01.2020): 355–61. http://dx.doi.org/10.1007/s10909-019-02313-4.

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20

刘, 志鹏. „Reverse Coupled Inductance Parameter Design in Staggered Parallel“. Advances in Energy and Power Engineering 11, Nr. 06 (2023): 194–200. http://dx.doi.org/10.12677/aepe.2023.116022.

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21

Okumura, Tomohiro. „Inductively Coupled Plasma Sources and Applications“. Physics Research International 2010 (20.02.2010): 1–14. http://dx.doi.org/10.1155/2010/164249.

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The principle of inductively coupled plasma (ICP) and perspective of ICP development are reviewed. Multispiral coil ICP (MSC-ICP), which has the advantages of low inductance, high efficiency, and excellent uniformity, is discussed in detail. Applications to thin film processing technologies and the future prospects of ICP are also described.

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22

Bobaru, Lavinia Maria, Marilena Stănculescu, D. Niculae und M. Iordache. „On Magnetically Coupled Coils Parameter Calculation“. Scientific Bulletin of Electrical Engineering Faculty 20, Nr. 1 (01.04.2020): 9–13. http://dx.doi.org/10.2478/sbeef-2020-0102.

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AbstractANSYS Q3D Extractor tool (AQ3DE), using the quasi-static solvers (method of moments, integral equations and FEMs), is very efficient for computing and simulating two- and three-dimensional electromagnetic field. This simulation is used to extract parameters of interest, such as: resistance (R), conductance (G), self-inductance (L), mutual inductance (M) and capacitance (C). These parameters can be further used to optimize and to obtain automatically the design of a wireless power transfer systems (WPTS). The resulting matrices allow the generation of new matrices for any selected parameters. To complete the analysis, the model which is computed will be exported as an equivalent circuit. In this paper, starting from a given WPTS, using AQ3DE tool, the parameters of interest (R, G, L, M, C) were automatically calculated, and the SPICE equivalent circuit was obtained. The analysis was performed for two different distances between the emitter and the receiver. The electrical circuit theory was used for the system analysis of magnetically coupled coil (MCC) system. Starting from the parameters extracted by the AQ3DE tool, the performance of the WPTS has been analysed both in time and frequency domain.

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23

Dimopoulos, K. Z., J. N. Avaritsiotis und S. J. White. „Electrical Modelling of Multilevel On-Chip Interconnections for High-Speed Integrated Circuits“. Active and Passive Electronic Components 14, Nr. 4 (1992): 199–218. http://dx.doi.org/10.1155/1992/13545.

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A method for the electrical parameters analysis and modelling of lossy-coupled multilayer on-chip interconnection lines at high bit rates is presented in detail. It can be used by the VLSI designer to analyze on-chip interconnections with linear, as well as nonlinear/time varying terminators and to simulate the pulse propagation characteristics in high-speed integrated circuits. First the capacitance, inductance, conductance and resistance matrices per unit length for the given multiconductor geometry is computed. A multiple coupled line model consisting of uncoupled lossy transmission lines and linear dependent current and voltage sources if finally calculated according to the capacitance, inductance, conductance and resistance matrix values computed.

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Li, Hongzhu, Ling Zhu und Le Wang. „A Double-Boost Converter Based on Coupled Inductance and Magnetic Integration“. Active and Passive Electronic Components 2021 (31.12.2021): 1–15. http://dx.doi.org/10.1155/2021/8014620.

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High-voltage gain converter has a high-frequency use in some industrial fields, for instance, the fuel cell system, the photovoltaic system, electric vehicles, and the high-intensity discharge lamp. In order to solve the problem of the low-voltage gain of traditional boost converter, the double-boost converter with coupled inductance and doubled voltage is proposed, which connects the traditional boost converter in parallel. The voltage gain of the converter is further improved by introducing the voltage-doubled unit of the coupled inductance. Moreover, the clamp capacitor can absorb the leakage inductance in the circuit and reduce the voltage stress of the switch. In addition, two coupled inductors are magnetically collected; then, the loss of the core is analyzed under the same gain. The detailed analysis of the proposed converter and a comparison considering other topologies previously published in the literature are also presented in this article. In order to verify the proposed converter performance, a prototype has been built for a power of 200 W, input and output voltages of 12 and 84 V, respectively, and a switching frequency of 50 kHz. Experimental results validate the effectiveness of the theoretical analysis proving the satisfactory converter performance, whose peak efficiency is 95.5%.

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25

Ding, W., und G. Wang. „Efficient timing modelling of coupled inductance dominant RLC interconnects“. Electronics Letters 45, Nr. 1 (2009): 22. http://dx.doi.org/10.1049/el:20092201.

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26

Arndt, F., J. Bornemann, C. Piontek und H. Schüuler. „Shunt-inductance-coupled waveguide filters with expanded second stopband“. Electronics Letters 21, Nr. 6 (1985): 238. http://dx.doi.org/10.1049/el:19850170.

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27

Jagadeesh, Ingilala, und V. Indragandhi. „A novel PV based high voltage gain soft switching DC-DC boost converter“. International Journal of Engineering & Technology 7, Nr. 3 (23.06.2018): 1034. http://dx.doi.org/10.14419/ijet.v7i3.13777.

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The design of high voltage gain DC-DC boost converter is carried out with the addition of the Voltage Multiplier (VM) method. Here the coupled inductor and VM methodologies are proposed to reduce the switching and conduction losses of the Metal Oxide Semiconductor Field Effect Transistor (MOSFET). The Zero Current Switching (ZCS) technique with coupled inductor leakage inductance is used to operate the MOSFET. The leakage inductance is used to decrease the reverse recovery current across the diode. The design procedure of the boost converter and corresponding output waveforms are presented in this paper. Photovoltaic (PV) source converter with coupling inductors soft switching technique has been analyzed and tested in this paper.

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Li, Hua, und Wolfgang Rucker. „A hybrid method for the calculation of the inductances of coils with and without deformed turns“. COMPEL: The International Journal for Computation and Mathematics in Electrical and Electronic Engineering 35, Nr. 4 (04.07.2016): 1360–70. http://dx.doi.org/10.1108/compel-07-2015-0265.

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Purpose – The purpose of this paper is to present an accurate and efficient hybrid method for the calculation of the inductance of a coil and its inductance change due to deformed turns using numerical methods. Design/methodology/approach – The paper opted for finite element method coupled with analytical method (FCA) to accurately calculate the inductance of a coil, which is used as reference value. An algorithm with a power function is presented to approximate the partial inductance matrix with the purpose of obtaining the percentage change of the inductance due to deformed turns by using the partial element equivalent circuit (PEEC) with an approximated model and an optimization process. The presented method is successfully validated by the numerical results. Findings – The paper provides a systematic investigation of the inductance of an arbitrary shaped coil and shows how to accurately and efficiently evaluate the inductance change of a coil due to its deformed turns. It suggests that the inductance of a coil can be accurately calculated by using FCA and its percentage change due to deformed turns can be efficiently calculated by using the PEEC_Approximation. Research limitations/implications – As this research is for the magnetostatics, the skin- and proximity-effects have not been taken into account. Practical implications – The paper includes implication for the worst-case analysis of the coil’s inductance due to mechanical damage or manufacturing tolerance. Originality/value – This paper fulfills an identified need to study how the inductance change of a coil can be obtained accurately and efficiently.

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Alhamrouni, Ibrahim, M. Iskandar, Mohamed Salem, Lilik J. Awalin, Awang Jusoh und Tole Sutikno. „Application of inductive coupling for wireless power transfer“. International Journal of Power Electronics and Drive Systems (IJPEDS) 11, Nr. 3 (01.09.2020): 1109. http://dx.doi.org/10.11591/ijpeds.v11.i3.pp1109-1116.

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Considering the massive development that took place in the past two decades, wireless power transfer has yet to show the applicability to be used due to several factors. This work focuses on determining the main parameters like, mutual inductance, and coupling coefﬁcient for a pair of helical coils for wireless power transfer applications. These parameters are important in designing and analyzing a wireless power transfer system based on the phenomenon of inductive/ resonant inductive coupling. Here presents a simple approach based on fundamental laws of physics for determining the coupled coil parameters for single layered helical coils. The results conducted by computer simulation which is MATLAB. Furthermore, this analysis is used to study the effect of change in coil diameter, mutual inductance coefficient and change in distance between coils on parameters like self and mutual inductance of coupled coils which is of great importance in Wireless Power Transfer applications. The research yielded promising results to show that wireless power transfer has huge possibility to solve many existing industrial problems.

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XU, XING-LEI, HONG-QI LI, SHI-MIN XU und JI-SUO WANG. „THE QUANTUM FLUCTUATIONS OF MESOSCOPIC DAMPED MUTUAL INDUCTANCE COUPLED DOUBLE RESONANCE RLC CIRCUIT AT FINITE TEMPERATURE“. International Journal of Modern Physics B 21, Nr. 27 (30.10.2007): 4725–38. http://dx.doi.org/10.1142/s0217979207038101.

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Mesoscopic damped mutual inductance coupled double resonance RLC circuit is quantized by the method of damped harmonic oscillator quantization and linear transformation. The energy levels of this circuit are given. By thermo-field dynamics (TFD), the quantum fluctuations of the current and voltage of each loop are researched in the thermal vacuum state, thermal coherent state and thermal squeezed state. It is shown that the quantum fluctuations of the current and voltage are related not only to the circuit inherent parameter and coupled magnitude of mutual inductance, but also squeezed coefficients, squeezed angle, environmental temperature and damped resistance. Furthermore, because of environmental temperature and damped resistance, the quantum fluctuations increase with the increase of temperature and decay along with time.

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Liu, Jin Feng, Xu Dong Wang und Yong Yu. „Performance Simulation Analysis of Contactless Excitation Energy Transmission Realized by Loosely Coupled Magnetic Tank Transformer“. Applied Mechanics and Materials 556-562 (Mai 2014): 2031–34. http://dx.doi.org/10.4028/www.scientific.net/amm.556-562.2031.

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Energy coupling realized by contactless magnetic tank transformer as new approach of rotator excitation in synchronous machine could replace brushes and slip rings of traditional excitation. For new contactless energy transmission (CET) system, its research about energy-efficiency quality still remains a low level because application and research of CET isn’t comprehensive, especially how to improve transfer power and efficiency isn’t enough. According to characteristics of contactless energy transmission system, mutual inductance model was used to describe the loosely coupled connection between primary and secondary winding. Then, optimum energy-efficiency product was proposed. We can use this indicator to consider efficiency, system cost, reliability and so on based on maximum output power. Mutual inductance coupling parameter would be optimized through this indicator and optimum design of system energy-efficiency characteristic would be realized at minimum cost. Although the input voltage had little increase, simulation research proved that system efficiency had a quit handsome increase based on optimum energy-efficiency product which established mutual inductance coupling parameter. This work is supported by National Natural Science Foundation (51177031).

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He, Liangzong, Zhile Lin, Qingyang Tan, Fengwang Lu und Tao Zeng. „Interleaved High Step-Up Current Sharing Converter with Coupled Inductors“. Electronics 10, Nr. 4 (10.02.2021): 436. http://dx.doi.org/10.3390/electronics10040436.

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An interleaved high-step-up current sharing DC–DC converter with coupled inductors is proposed in this paper. The operation principle and property of this converter are analyzed. The ripple of the input current in the proposed converter is decreased significantly by using the two-phase parallel interleaved input. The voltage gain is extended and the switch voltage stress is reduced by the coupled inductors. The leakage inductance of the coupled inductors reduces the reverse-recovery problem of the output diode, resulting in the reduction of reverse-recovery losses. As there are two interleaved phases in the proposed converter, the third winding of each coupled inductor is embedded in another phase. With this design, when the leakage inductance or duty cycle is asymmetrical, the current sharing performance is still positive. Consequently, the new topology is very suitable for applications to occasions with low voltage input and high voltage output, such as the fuel cell power system. Finally, the performance of this topological circuit is verified by a prototype with 500 W output.

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ZHANG, YUQIANG, SHAOHONG CAI und YUEWU HAN. „QUANTUM FLUCTUATIONS OF A DISSIPATIVE MESOSCOPIC CAPACITANCE–RESISTANCE–INDUCTANCE COUPLED CIRCUIT“. Modern Physics Letters B 24, Nr. 11 (10.05.2010): 1091–98. http://dx.doi.org/10.1142/s021798491002313x.

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Starting from Kirchhoff's equation for each mesoscopic coupled circuit, we investigated the quantum fluctuations of a dissipative mesoscopic capacitance–resistance–inductance coupled circuit using canonical transformation and unitary transformation. It is shown that the quantum fluctuations of charges and currents are not only related to the parameters of components in the self-circuit and coupled part, but also influenced by the parameters of other circuit. The uncertainty relations of the charges and currents are analyzed briefly.

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Parise, Mauro, Fabrizio Loreto, Daniele Romano, Giulio Antonini und Jonas Ekman. „Accurate Computation of Mutual Inductance of Non Coaxial Pancake Coils“. Energies 14, Nr. 16 (11.08.2021): 4907. http://dx.doi.org/10.3390/en14164907.

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The computation of self and mutual inductances of coils is a classic problem of electrical engineering. The accurate modeling of coupled coils has received renewed interest with the spread of wireless power transfer systems. This problem has been quite well addressed for coplanar or perfectly coaxial coils but it is known that the misalignment conditions easily lead to a sharp decrease in the efficiency. Hence, it is crucial to take misalignment into account in order to properly design the overall wireless power transfer system. This work presents a study to compute analytically the mutual inductance of non-coaxial pancake coils with parallel axes. The accuracy of the proposed methodology is tested by comparison with the numerical results obtained using the tool Fast-Henry. Then, a wireless power transfer system, comprising a full bridge inverter is considered, showing the impact of the misalignment on the coupling between two pancake coils and, thus, between the source and the load.

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Xie, Kedi, Quanfu Gao, Xufeng Zhang und Huirong Shi. „Analysis on Transmission Characteristics of Dynamic Magnetic Coupling Mechanism of Racetrack Coil with Deflection Angles“. Journal of Physics: Conference Series 2731, Nr. 1 (01.03.2024): 012028. http://dx.doi.org/10.1088/1742-6596/2731/1/012028.

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Abstract In dynamic magnetically coupled contactless power transmission, the fluctuation of mutual inductance is caused by the relative motion between transmission and receiving coils, which affects the stability of power transmission. In order to reduce the fluctuation characteristics of power transmission, the mutual inductance calculation model of transmission mechanism including a racetrack coil with deflection angle is established by using Neumann formula, and the influence of different deflection angle and layout on mutual inductance fluctuation characteristics is analyse and compare. Then the power transmission system with LCC-S compensation for the transmission mechanism is established. The transmission characteristics of the racetrack coil with deflection angle are studied. The results show that reasonable design of the deflection angle can reduce the fluctuation of the mutual inductance and the power output in dynamic transmission. The fluctuation of power output can also be reduced by changing the distance between transmission coils and the length of straight side of receiving coils.

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Avignon-Meseldzija, Emilie, Thomas Lepetit, Pietro Maris Ferreira und Fabrice Boust. „Negative inductance circuits for metamaterial bandwidth enhancement“. EPJ Applied Metamaterials 4 (2017): 11. http://dx.doi.org/10.1051/epjam/2017009.

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Passive metamaterials have yet to be translated into applications on a large scale due in large part to their limited bandwidth. To overcome this limitation many authors have suggested coupling metamaterials to non-Foster circuits. However, up to now, the number of convincing demonstrations based on non-Foster metamaterials has been very limited. This paper intends to clarify why progress has been so slow, i.e., the fundamental difficulty in making a truly broadband and efficient non-Foster metamaterial. To this end, we consider two families of metamaterials, namely Artificial Magnetic Media and Artificial Magnetic Conductors. In both cases, it turns out that bandwidth enhancement requires negative inductance with almost zero resistance. To estimate bandwidth enhancement with actual non-Foster circuits, we consider two classes of such circuits, namely Linvill and gyrator. The issue of stability being critical, both metamaterial families are studied with equivalent circuits that include advanced models of these non-Foster circuits. Conclusions are different for Artificial Magnetic Media coupled to Linvill circuits and Artificial Magnetic Conductors coupled to gyrator circuits. In the first case, requirements for bandwidth enhancement and stability are very hard to meet simultaneously whereas, in the second case, an adjustment of the transistor gain does significantly increase bandwidth.

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Fourie, Coenrad J., und Kyle Jackman. „High-fidelity circuit simulation of AQFP circuits through compact models extracted from layout“. Journal of Physics: Conference Series 2323, Nr. 1 (01.08.2022): 012034. http://dx.doi.org/10.1088/1742-6596/2323/1/012034.

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Abstract Adiabatic Quantum Flux Parametron (AQFP) superconductor logic circuits rely on magnetic coupling between the gate and clock and control lines to function. Circuit designers start by designing a circuit netlist, selecting parameters to fit design objectives, optimizing the netlist in simulation and then progressing to integrated circuit layout. Hand-designed netlists mostly do not contain all the mutual inductances between inductors. The lack of a complete set of mutual inductances can limit the accuracy of the designed netlist. For a circuit netlist to be an exact representation of the layout, the number of inductors should be equal to the number of fundamental cycles in the netlist graph and all inductors should be coupled. In this paper, we show that full-circuit inductance extraction of AQFP layout where self and mutual inductances are specified by the designer produces small but possibly significant errors due to mismatch between the design schematic and the layout. With compact simulation model extraction, which we added to the InductEx tool chain, a much more accurate simulation model that includes all mutual inductances can be obtained to verify circuit performance after layout. We propose compact model extraction as the final step in cell library characterisation.

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Azmi, N. Q., N. A. Murad, N. A. Samsuri, A. R. Tanvir und A. A. Z. A. Nizam. „Near Field on Inductor Loops for Inductive Couple Fed Antenna“. Journal of Physics: Conference Series 2250, Nr. 1 (01.04.2022): 012014. http://dx.doi.org/10.1088/1742-6596/2250/1/012014.

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Abstract This paper presents an evaluation on the near field of square loop and circular loop for inductive couple fed RFID Tag antenna. The loop is simulated with different diameter and width The turns number (N) of the loop is varies up to three number of turns for each loop length. The magnetic fields and inductance are simulated to estimate the signal strength that can be coupled to the tag antenna. To evaluate the performance, the inductive feeding loop is designed to operate at RFID UHF band (860 MHz - 960 MHz) and simulated using CST software. It is confirmed that 6 mm loop length of the square and circular loop has higher magnetic field values as the surface area of the loop is bigger. The loop with different overall dimension gives out different reactance, inductance and magnetic field, dipole antenna, CST, and loop antenna.

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Yang, Xiao Dong, Yong Wan und Fu Qiang Hu. „Study on Influence of Stray Inductance in Micro EDM Using Electrostatic Induction Feeding Method“. Key Engineering Materials 447-448 (September 2010): 263–67. http://dx.doi.org/10.4028/www.scientific.net/kem.447-448.263.

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In the micro EDM method by electrostatic induction feeding, a pulse generator is coupled to the tool electrode by a capacitor, since the negative influence of the stray capacitance in the circuit can be eliminated, and the discharge energy per pulse can be minimized, thereby realizing discharge craters of nanometer order. However, there is still the stray inductance in the discharge circuit, other than the stray capacitance. In this study, in order to examine the influence of the stray inductance, experimental investigation was conducted.

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Naprienko, Anastasiia S., und Dmitry А. Shtein. „Optimization of switching losses of the Weinberg converter“. International Journal of Power Electronics and Drive Systems (IJPEDS) 14, Nr. 3 (01.09.2023): 1544. http://dx.doi.org/10.11591/ijpeds.v14.i3.pp1544-1552.

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DC-DC converters are widely used in hybrid power supply systems. A buffer source of electrical energy (most often a battery bank) and its charging and discharging devices are integral parts of such systems. In systems where the battery bank voltage is less than the DC-bus voltage and galvanic isolation is not required, the Weinberg converter is widely used as a discharge device, for example, in spacecraft power supply systems. The current trend in the development of hybrid power supply systems is to increase the power density of the system. Increasing the operating frequency is the simplest and most effective way to increase the power density of converter. A differential characteristic of this converter is the zero-current switching (ZCS) of transistors, which occurs due to the influence of the leakage inductance of coupled-inductors and the leakage inductance of the transformer. The paper presents an analysis of the influence of leakage inductances on the operation of the converter and a method of determining a level of turn on switching losses of transistors, which allows to ensure the necessary level of efficiency of the converter. The results of simulation modeling of the converter confirm the effectiveness of this method.

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Bukya, Ravi. „Development of Wireless Charging System Using Square-Circular Coupled Coils with Different Misalignments“. Journal of Electrical and Electronic Engineering 12, Nr. 1 (21.02.2024): 12–22. http://dx.doi.org/10.11648/j.jeee.20241201.12.

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Now a days, inductive power transfer (IPT) has gained a lot of attention from researchers as it has ease of use and realiability for electric vehicle (EV) battery charging systems. This paper examines the increasing attention from researchers towards inductive power transfer (IPT) as a means of charging electric vehicle (EV) batteries. This interest originates from the user-friendly characteristics and notable reliability associated with IPT. The evaluation of mutual inductance (MI) holds importance within the domain of Inductive Power Transfer (IPT) systems, as it serves a critical function in enabling effective power transfer. Therefore, it is essential to perform a comprehensive analysis of the mutual inductance between the two coils that are connected through inductive coupling. This study provides an examination of mutual inductance (MI) and efficiency within the context of interoperability conditions of interconnected coils. The transmitter coil is represented as a square structure, denoted as TxS, whereas the receiving coil is represented as a circular structure, denoted as RxC. Furthermore, the application of ferrite cores and steel chassis inclosures, in combination with coils, is utilised for the objective of electric vehicle (EV) battery charging. The magnetic induction (MI) analysis is performed by the utilisation of finite element method (FEM) simulation. The finite element method (FEM) simulation outcomes of the interconnected coils with misalignments, encompassing both non-core and steel chassis configurations, are juxtaposed with the corresponding empirical observations.

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Xia, Tao, Xiaoliang Zhang, Zhiying Zhu, Haitao Yu und Hang Li. „An Adaptive Control Strategy for Underwater Wireless Charging System Output Power with an Arc-Shaped Magnetic Core Structure“. Journal of Marine Science and Engineering 11, Nr. 2 (31.01.2023): 294. http://dx.doi.org/10.3390/jmse11020294.

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Aiming at the problem of unstable output power of wireless charging systems for autonomous underwater vehicles (AUVs), a magnetic coupler (MC) with an arc-shaped core structure is introduced and an output power stabilization control strategy based on mutual inductance identification algorithm is proposed. Firstly, an arc-shaped MC with high tolerances, excellent magnetic coupling and weak electromagnetic interference (EMI) is designed for the cylinder-shaped AUV. Based on ANSYS Maxwell simulation, an analysis of the magnetic field and comparative misalignment tests are carried out for the arc-shaped and the double dipole core structures. Secondly, a mathematical model of the LCC-S type magnetically coupled resonant wireless power transfer (MCR-WPT) system is developed, and a particle swarm parameter identification algorithm with adaptive inertia weights is proposed. Finally, the output power is steadily controlled by real-time adaptation of the duty cycle for the Buck-Boost circuit. The results show there is a maximum error within 2.5% in mutual inductance identification when the load is changed from 0 Ω to 12 Ω and the mutual inductance is changed from 25 μH to 50 μH. The system output power is steady at around 680 W with a maximum fluctuation rate of 4.90%, which verifies the efficiency of the power stabilization control strategy.

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Rong, Desheng, Ning Wang, Xuanjin Sun und Haoran Dong. „High‐gain combined buck‐boost‐Cuk converter with coupled inductance“. IET Power Electronics 15, Nr. 2 (24.11.2021): 132–44. http://dx.doi.org/10.1049/pel2.12220.

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44

Amari, S. „Capacitance and inductance matrices of coupled lines from modal powers“. IEEE Transactions on Microwave Theory and Techniques 41, Nr. 1 (1993): 146–50. http://dx.doi.org/10.1109/22.210243.

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Gentili, G. G., und A. Melloni. „The incremental inductance rule in quasi-TEM coupled transmission lines“. IEEE Transactions on Microwave Theory and Techniques 43, Nr. 6 (Juni 1995): 1276–80. http://dx.doi.org/10.1109/22.390183.

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Kang, Jinfeng, Ruqi Han, Guangcheng Xiong, Xiaoyan Liu und Yangyuan Wang. „Simple formulae for kinetic inductance of coupled superconducting microstrip lines“. Journal of Applied Physics 81, Nr. 4 (15.02.1997): 1829–32. http://dx.doi.org/10.1063/1.364040.

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47

Fukada, Eiichi, Munehiro Date und Kosei Sekigawa. „Vibration Control by Magnetostrictive Actuator Coupled with Negative Inductance Circuits“. Japanese Journal of Applied Physics 42, Part 1, No. 11 (10.11.2003): 7124–28. http://dx.doi.org/10.1143/jjap.42.7124.

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Naruse, Masato, Noriaki Miyamoto, Tohru Taino und Hiroaki Myoren. „Absorber-coupled lumped element kinetic inductance detectors for gamma-rays“. Physica C: Superconductivity and its Applications 541 (Oktober 2017): 36–39. http://dx.doi.org/10.1016/j.physc.2017.08.001.

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Zhang, Shou, Jeong-Ryeol Choi, Chung-In Um und Kyu-Hwang Yeon. „Quantum squeezing effect of mesoscopic capacitance–inductance–resistance coupled circuit“. Physics Letters A 294, Nr. 5-6 (März 2002): 319–26. http://dx.doi.org/10.1016/s0375-9601(02)00062-2.

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Lankwarden, Y. J. Y., A. Endo, J. J. A. Baselmans und M. P. Bruijn. „Development of NbTiN-Al Direct Antenna Coupled Kinetic Inductance Detectors“. Journal of Low Temperature Physics 167, Nr. 3-4 (20.01.2012): 367–72. http://dx.doi.org/10.1007/s10909-012-0503-0.

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