Designing a SMPS with Basically Zero Earth Current
Kübrich D, Kaiser J, Dürbaum T, Deuringer J (2025)
Publication Type: Conference contribution
Publication year: 2025
Publisher: IEEE
Pages Range: 575-578
Conference Proceedings Title: 2025 International Symposium on Electromagnetic Compatibility – EMC Europe
Event location: Paris
Journal Issue: 2025
ISBN: 979-8-3315-9645-3
DOI: 10.1109/EMCEurope61644.2025.11176258
Abstract
For a switch mode power supply (SMPS), generating some common mode noise (cm) is expected to be inherent. In order to reduce the cm levels, Y-capacitors are inserted to provide a current return path bypassing the mains. Due to these capacitances in addition to internal ones of the transformer, a significant current flowing towards earth seems unavoidable. However, there are applications where this earth current is limited. In a SMPS designed for these requirements using Y-capacitors is simply not possible. This paper documents a successful approach for such a power supply with an output power of 1.5 kW.
Authors with CRIS profile
Daniel Kübrich
Lehrstuhl für Optoelektronik
Jeremias Kaiser
Lehrstuhl für Optoelektronik
Thomas Dürbaum
Professur für Elektromagnetische Felder
Involved external institutions
Germany (DE)How to cite
APA:
Kübrich, D., Kaiser, J., Dürbaum, T., & Deuringer, J. (2025). Designing a SMPS with Basically Zero Earth Current. In 2025 International Symposium on Electromagnetic Compatibility – EMC Europe (pp. 575-578). Paris, FR: IEEE.
MLA:
Kübrich, Daniel, et al. "Designing a SMPS with Basically Zero Earth Current." Proceedings of the International Symposium on Electromagnetic Compatibility, Paris IEEE, 2025. 575-578.
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