Suppression of electromagnetic interference using screening and shielding techniques within switching cells

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Zhang, Zhe and Johnson, Christopher Mark (2017) Suppression of electromagnetic interference using screening and shielding techniques within switching cells. In: 2017 IEEE International Workshop On Integrated Power Packaging (IWIPP), 5-7 April 2017, Delft, Netherlands.

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Abstract

in this paper we introduce the use of combination of screening and shielding to suppress electromagnetic interference (EMI) generated by a switching cell. We investigate the screening of common mode (CM) currents and the shielding of magnetic fields generated by a model switching cell using a combination of simulation tools and measurements. Simulation results align with measurements very well up to 100MHz, confirming that a relatively simple model can be used to investigate different arrangements of screen layer. We demonstrate that electromagnetically coupled currents produced by rapidly changing voltages and currents in the main switching circuit can be circulated back to the local DC-link or absorbed rather than being coupled to the external environment.

Item Type: Conference or Workshop Item (Paper)
RIS ID: https://nottingham-repository.worktribe.com/output/854973
Additional Information: doi:10.1109/IWIPP.2017.7936762 ISBN: 9781509042784 © 2017 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting/republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works.
Keywords: Wide Band Gap device; EMI; screening; shielding
Schools/Departments: University of Nottingham, UK > Faculty of Engineering > Department of Electrical and Electronic Engineering
Depositing User: Burns, Rebecca
Date Deposited: 23 Jan 2018 10:59
Last Modified: 04 May 2020 18:41
URI: https://eprints.nottingham.ac.uk/id/eprint/49283

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