Efficiency Comparison of Si and GaN-based External Power Supplies for Consumer Electronics in the Light of New Efficiency Regulations

Manuel Burgsteiner; Shashank Panikkar; Markus Makoschitz

doi:10.1109/ICCE67443.2026.11449784

Efficiency Comparison of Si and GaN-based External Power Supplies for Consumer Electronics in the Light of New Efficiency Regulations

Chair of Electrical Engineering (240)

Research output: Contribution to conference › Paper › peer-review

Abstract

The European Commission's recent regulation on the eco-design of external power supplies (EPS) marks a significant shift in the industry. Compared to the 2019 regulation, the 2025 version imposes stricter limits on no-load power consumption and average efficiency of the EPS. It also introduces a method for measuring and calculating the efficiency of multiport power supplies. This regulation is also timely, as new wide-bandgap semiconductor technology such as Gallium-Nitride (GaN) is rapidly evolving and becoming increasingly prominent in consumer-grade EPS, particularly in the 60 W power category. Thus, in this paper, the two Commission Regulations are compared, the specifics of the new requirements are examined and the efficiency improvements enabled by GaN-based designs with respect to conventional silicon solutions are analysed.

Translated title of the contribution	Effizienzvergleich von Si- und GaN-basierten externen Netzteilen für Verbraucherelektronik unter Berücksichtigung der neuen Effizienzrichtlinien
Original language	English
DOIs	https://doi.org/10.1109/ICCE67443.2026.11449784
Publication status	Published - 27 Mar 2026

Bibliographical note

Publisher Copyright:
© 2026 IEEE.

Keywords

efficiency
EPS
external power supplies
limits

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10.1109/ICCE67443.2026.11449784

Cite this

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title = "Efficiency Comparison of Si and GaN-based External Power Supplies for Consumer Electronics in the Light of New Efficiency Regulations",

abstract = "The European Commission's recent regulation on the eco-design of external power supplies (EPS) marks a significant shift in the industry. Compared to the 2019 regulation, the 2025 version imposes stricter limits on no-load power consumption and average efficiency of the EPS. It also introduces a method for measuring and calculating the efficiency of multiport power supplies. This regulation is also timely, as new wide-bandgap semiconductor technology such as Gallium-Nitride (GaN) is rapidly evolving and becoming increasingly prominent in consumer-grade EPS, particularly in the 60 W power category. Thus, in this paper, the two Commission Regulations are compared, the specifics of the new requirements are examined and the efficiency improvements enabled by GaN-based designs with respect to conventional silicon solutions are analysed.",

keywords = "Effizienz, externe Netzteile, EPS, efficiency, EPS, external power supplies, limits",

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AU - Panikkar, Shashank

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PY - 2026/3/27

Y1 - 2026/3/27

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AB - The European Commission's recent regulation on the eco-design of external power supplies (EPS) marks a significant shift in the industry. Compared to the 2019 regulation, the 2025 version imposes stricter limits on no-load power consumption and average efficiency of the EPS. It also introduces a method for measuring and calculating the efficiency of multiport power supplies. This regulation is also timely, as new wide-bandgap semiconductor technology such as Gallium-Nitride (GaN) is rapidly evolving and becoming increasingly prominent in consumer-grade EPS, particularly in the 60 W power category. Thus, in this paper, the two Commission Regulations are compared, the specifics of the new requirements are examined and the efficiency improvements enabled by GaN-based designs with respect to conventional silicon solutions are analysed.

KW - Effizienz

KW - externe Netzteile

KW - EPS

KW - efficiency

KW - EPS

KW - external power supplies

KW - limits

UR - https://www.scopus.com/pages/publications/105037339835

U2 - 10.1109/ICCE67443.2026.11449784

DO - 10.1109/ICCE67443.2026.11449784

M3 - Paper

ER -

Efficiency Comparison of Si and GaN-based External Power Supplies for Consumer Electronics in the Light of New Efficiency Regulations

Abstract

Bibliographical note

Keywords

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Efficiency Comparison of Si and GaN-based External Power Supplies for Consumer Electronics in the Light of New Efficiency Regulations

Cite this