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Volume 13
Issue 6
10.3390/electronics13061045
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Article

Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter

by
Fabio Cacciotto
1,
Alessandro Cannone
1,
Emanuele Cassarà
1,2 and
Santi Agatino Rizzo
2,*
1
ST Microelectronics s.r.l., 95121 Catania, Italy
2
Department of Electrical Electronic and Computer Engineering (DIEEI), University of Catania, 95125 Catania, Italy
*
Author to whom correspondence should be addressed.
Electronics 2024, 13(6), 1045; https://doi.org/10.3390/electronics13061045
Submission received: 17 January 2024 / Revised: 5 March 2024 / Accepted: 6 March 2024 / Published: 11 March 2024
(This article belongs to the Special Issue Section Collection Series: New Horizons and Recent Advances in Power Electronics)
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Abstract

This paper presents a high-efficiency GaN-based 65 W Quasi-Resonant (QR) Flyback converter. The converter is characterized by a wide input voltage range and a variable output voltage, and it is designed as a Switch Mode Power Supply (SMPS) for high power density USP-Power Delivery (USB-PD) applications. To increase the efficiency and power density, a regenerative snubber clamp solution has been used to limit the excursion of the drain voltage during the power switch turn-off. The activity involved the modeling of the converter, the sizing of the regenerative snubber, and the design of the flyback transformer. Furthermore, a dedicated test application board was used to verify the effectiveness of the solution. The results were compared with those obtained using a flyback converter with an RCD snubber.
Keywords: efficiency; power electronics; Flyback; GaN efficiency; power electronics; Flyback; GaN

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MDPI and ACS Style

Cacciotto, F.; Cannone, A.; Cassarà, E.; Rizzo, S.A. Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter. Electronics 2024, 13, 1045. https://doi.org/10.3390/electronics13061045

AMA Style

Cacciotto F, Cannone A, Cassarà E, Rizzo SA. Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter. Electronics. 2024; 13(6):1045. https://doi.org/10.3390/electronics13061045

Chicago/Turabian Style

Cacciotto, Fabio, Alessandro Cannone, Emanuele Cassarà, and Santi Agatino Rizzo. 2024. "Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter" Electronics 13, no. 6: 1045. https://doi.org/10.3390/electronics13061045

APA Style

Cacciotto, F., Cannone, A., Cassarà, E., & Rizzo, S. A. (2024). Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter. Electronics, 13(6), 1045. https://doi.org/10.3390/electronics13061045

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