A Novel Approach to Reduce EMI in Switched-Mode Power Supplies Operating at Fixed Switching Frequencies

Hubert F, Dorsch P, Rupitsch S, Dürbaum T (2019)

Publication Type: Conference contribution, Conference Contribution

Publication year: 2019

Publisher: VDE VERLAG GMBH · Berlin · Offenbach

Pages Range: 630 - 637

Conference Proceedings Title: PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management

Event location: Nuremberg, Germany DE

ISBN: 978-3-8007-4938-6

Abstract

This contribution presents a novel approach to reduce electromagnetic interference of switched-mode power supplies. The interference reduction is based on the inverse piezoelectric effect. Providing a low-impedance propagation path for conducted emissions at a resonance frequency of a piezoelectric element, we can attenuate a discrete disturbance peak of a disturbance spectrum. We successfully integrated our novel piezoelectric EMI-filter in a flyback-converter in order to suppress a common-mode disturbance peak. Measurement results reveal that the suppression effect can be improved by 31 dB compared to a similar regular interference-suppression capacitor. Regarding the practical use of the developed piezoelectric EMI-filter, the temperature dependence is examined in addition.

Authors with CRIS profile

Florian Hubert Lehrstuhl für Autonome Systeme und Mechatronik Philipp Dorsch Lehrstuhl für Autonome Systeme und Mechatronik Stefan Rupitsch Lehrstuhl für Autonome Systeme und Mechatronik Thomas Dürbaum Professur für Elektromagnetische Felder

How to cite

APA:

Hubert, F., Dorsch, P., Rupitsch, S., & Dürbaum, T. (2019). A Novel Approach to Reduce EMI in Switched-Mode Power Supplies Operating at Fixed Switching Frequencies. In VDE VERLAG GMBH, Berlin · Offenbach (Eds.), PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management (pp. 630 - 637). Nuremberg, Germany, DE: VDE VERLAG GMBH · Berlin · Offenbach.

MLA:

Hubert, Florian, et al. "A Novel Approach to Reduce EMI in Switched-Mode Power Supplies Operating at Fixed Switching Frequencies." Proceedings of the PCIM Europe 2019; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany Ed. VDE VERLAG GMBH, Berlin · Offenbach, VDE VERLAG GMBH · Berlin · Offenbach, 2019. 630 - 637.

BibTeX: Download