Hubert F, Dorsch P, Dürbaum T, Rupitsch S (2019)
Publication Type: Conference contribution
Publication year: 2019
Publisher: Institute of Electrical and Electronics Engineers Inc.
Pages Range: 2080-2087
Conference Proceedings Title: ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia
Event location: Busan, KOR
ISBN: 9788957083130
A novel electromagnetic interference suppression method based on the inverse piezoelectric effect for switch-mode power supplies is introduced. A piezoelectric in-terference-suppression component (PISC) generates a low-impedance propagation path for conducted emissions at its resonance frequency. This permits an attenuation of a discrete disturbance peak. Besides the resonance frequency, the PISC features capacitive behavior. PISCs can not only substitute regular capacitors but also provide selective peak attenuation. We proof this concept by integrating the PISC in a flyback converter and investigate the attenuation of com-mon-mode disturbances. In addition, the influence of frequency shifts for the circuitry and the PISC are evaluated. In our measurements, the PISC suppresses a discrete disturbance peak at the switching frequency by 45 dB, which was found to be 17 dB better than the conventional approach. Furthermore, an impulse voltage test regarding the electrical safety of the PISC was carried out.
APA:
Hubert, F., Dorsch, P., Dürbaum, T., & Rupitsch, S. (2019). Novel EMI-Suppression Method for Galvanically Isolated Converters. In ICPE 2019 - ECCE Asia - 10th International Conference on Power Electronics - ECCE Asia (pp. 2080-2087). Busan, KOR: Institute of Electrical and Electronics Engineers Inc..
MLA:
Hubert, Florian, et al. "Novel EMI-Suppression Method for Galvanically Isolated Converters." Proceedings of the 10th International Conference on Power Electronics - ECCE Asia, ICPE 2019 - ECCE Asia, Busan, KOR Institute of Electrical and Electronics Engineers Inc., 2019. 2080-2087.
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