Reducing EMI Filter Size and Losses with a Novel Piezoelectric Interference-Suppression Component
Hubert F, Wich M, Dürbaum T, Rupitsch SJ (2024)
Publication Type: Conference contribution, Original article
Publication year: 2024
Journal
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 1506-1511
Conference Proceedings Title: Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC
Event location: Long Beach, CA
ISBN: 9798350316643
DOI: 10.1109/APEC48139.2024.10509072
Abstract
Switch-mode power supplies (SMPS) are one of the main sources of electromagnetic interference (EMI). Suppressing EMI with minimal filtering effort results in a multifaceted challenge for hardware developers. To overcome this challenge, a novel EMI measure for SMPS based on the piezoelectric effect will be presented. Piezoelectric interference-suppression components (PISCs) provide a low-impedance propagation path at their resonance frequencies. Beyond their resonance frequencies, PISCs feature a capacitive behavior. PISCs can, therefore, not only replace interference-suppression capacitors, such as Y-capacitors, but also provide selective attenuation at certain disturbance peaks. It will be experimentally shown that a more compact EMI filter can be realized by utilizing PISCs. As an application scenario, PISCs are implemented in a flyback converter and their EMI suppression is investigated. Experimental results validate that the proposed filtering method can achieve a 64 % volume reduction and a 54 % reduction of DC losses within the filter compared to conventional EMI measures.
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Germany (DE)How to cite
APA:
Hubert, F., Wich, M., Dürbaum, T., & Rupitsch, S.J. (2024). Reducing EMI Filter Size and Losses with a Novel Piezoelectric Interference-Suppression Component. In Conference Proceedings - IEEE Applied Power Electronics Conference and Exposition - APEC (pp. 1506-1511). Long Beach, CA, US: Institute of Electrical and Electronics Engineers Inc..
MLA:
Hubert, Florian, et al. "Reducing EMI Filter Size and Losses with a Novel Piezoelectric Interference-Suppression Component." Proceedings of the 39th Annual IEEE Applied Power Electronics Conference and Exposition, APEC 2024, Long Beach, CA Institute of Electrical and Electronics Engineers Inc., 2024. 1506-1511.
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