Analysis and Optimization of a Regenerative Snubber for a GaN-Based USB-PD Flyback Converter
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Published:2024-03-11
Issue:6
Volume:13
Page:1045
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ISSN:2079-9292
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Container-title:Electronics
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language:en
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Short-container-title:Electronics
Author:
Cacciotto Fabio1, Cannone Alessandro1, Cassarà Emanuele12, Rizzo Santi Agatino2ORCID
Affiliation:
1. ST Microelectronics s.r.l., 95121 Catania, Italy 2. Department of Electrical Electronic and Computer Engineering (DIEEI), University of Catania, 95125 Catania, Italy
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.
Reference23 articles.
1. Hwu, K.-I., Shieh, J.-J., and Lin, C.-T. (2024). Universal Input Single-Stage High-Power-Factor LED Driver with Active Low-Frequency Current Ripple Suppressed. Energies, 17. 2. Huang, A.B.-K., Liang, B.T.-J., Tseng, C.W.-J., Chen, D.K.-H., and Chen, E.Q.-M. (2019, January 27–31). Primary-Side Control for Flyback Converter with Wide Range Operation. Proceedings of the 2019 10th International Conference on Power Electronics and ECCE Asia (ICPE 2019—ECCE Asia), Busan, Republic of Korea. 3. Quentin, N., Perrin, R., Martin, C., Joubert, C., Lacombe, B., and Buttay, C. (2016, January 10–12). GaN Active-Clamp Flyback Converter with Resonant Operation Over a Wide Input Voltage Range. Proceedings of the PCIM Europe 2016; International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management, Nuremberg, Germany. 4. Rizzoli, G., Zarri, L., Wang, J., Shen, Z., Burgos, R., and Boroyevich, D. (2016, January 18–22). Design of a two-switch flyback power supply using 1.7 kV SiC devices for ultra-wide input-voltage range applications. Proceedings of the 2016 IEEE Energy Conversion Congress and Exposition (ECCE), Milwaukee, WI, USA. 5. Lodh, T., and Majumder, T. (2016, January 3–5). A high gain highly efficient and compact flyback converter with a passive clamp circuit. Proceedings of the 2016 International Conference on Signal Processing Communication, Power and Embedded System (SCOPES), Paralakhemundi, India.
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