Topology Optimization of Ferromagnetic Core in Wireless Charging Systems with EMI shielding  

Topology Optimization of Ferromagnetic Core in Wireless Charging Systems with EMI shielding | Authorea try { document.documentElement.classList.add('js'); } catch (e) { } var _gaq = _gaq || []; _gaq.push(['_setAccount', 'G-8VDV14Y67G']); _gaq.push(['_trackPageview']); (function() { var ga = document.createElement('script'); ga.type = 'text/javascript'; ga.async = true; ga.src = ('https:' == document.location.protocol ? 'https://ssl' : 'http://www') + '.google-analytics.com/ga.js'; var s = document.getElementsByTagName('script')[0]; s.parentNode.insertBefore(ga, s); })(); Skip to main content Preprints Collections Wiley Open Research IET Open Research Ecological Society of Japan All Collections About About Authorea FAQs Contact Us Quick Search anywhere Search for preprint articles, keywords, etc. Search Search ADVANCED SEARCH SCROLL This is a preprint and has not been peer reviewed. Data may be preliminary. 15 December 2025 V2 Latest version Share on Topology Optimization of Ferromagnetic Core in Wireless Charging Systems with EMI shielding Authors : Balaji Sriram 0009-0009-2399-104X [email protected] , Harivinay Varadaraju , Sharmeela. C , and C Bharatiraja Authors Info & Affiliations https://doi.org/10.22541/au.176220127.73398327/v2 236 views 160 downloads Contents Abstract Supplementary Material Information & Authors Metrics & Citations View Options References Figures Tables Media Share Abstract The ferromagnetic material (power ferrite) is one of the most crucial and the heaviest component in high-power Wireless Charging Systems (WCS). Optimizing the design of this ferromagnetic core can increase the power density of the WCS system while simultaneously reducing the eddy current losses at the metallic regions used for EMI shielding. In this paper, the analytical expression for hole sensitivity is derived for topology optimization of ferromagnetic material in an eddy current based WCS system with multiobjective functions. The first being maximization of mutual inductance and the second being minimization of eddy loss in the EMI shields. The empirically derived sensitivity for minimizing the eddy loss is first validated for a standalone eddy current system consisting of a current carrying winding, ferromagnetic material and a metallic shield in their vicinity. Further, a linear combination of derived sensitivity expressions are applied to a standard WCS system consisting of transmitter and receiver coils with ferromagnetic materials and EMI shielding to optimize both the magnetic coupling as well as the eddy loss. [ This work has been submitted to the IEEE for possible publication. Copyright may be transferred without notice, after which this version may no longer be accessible. ] Supplementary Material File (topology_optimization_wireless_power_transfer2.pdf) Download 835.40 KB Information & Authors Information Version history V1 Version 1 03 November 2025 V2 Version 2 15 December 2025 Copyright This work is licensed under a Non Exclusive No Reuse License. Keywords material sensitivity analysis topology optimization wireless power transfer Authors Affiliations Balaji Sriram 0009-0009-2399-104X [email protected] Department of Electrical Engineering, Indian Institute of Technology Kanpur, U.P Research and Development Wing, Simactricals. Pvt. Ltd View all articles by this author Harivinay Varadaraju Research and Development Wing, Simactricals. Pvt. Ltd View all articles by this author Sharmeela. C Department of Electrical and Electronics Engineering, College of Engineering Guindy, T.N 600025, India View all articles by this author C Bharatiraja Department of Electrical and Electronics Engineering, SRM Institute of Technology View all articles by this author Funding Information Department of Science and Technology, Ministry of Science and Technology, India ANRF/MAHA/2024/000115/ECF Metrics & Citations Metrics Article Usage 236 views 160 downloads .FvxKWukQNSOunydq8rnd { width: 100px; } Citations Download citation Balaji Sriram, Harivinay Varadaraju, Sharmeela. C, et al. Topology Optimization of Ferromagnetic Core in Wireless Charging Systems with EMI shielding . Authorea . 15 December 2025. DOI: https://doi.org/10.22541/au.176220127.73398327/v2 If you have the appropriate software installed, you can download article citation data to the citation manager of your choice. Simply select your manager software from the list below and click Download. 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