Digital GaN 300W AC/DC Power Supply
Conference: PCIM Europe 2023 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/09/2023 - 05/11/2023 at Nürnberg, Germany
doi:10.30420/566091320
Proceedings: PCIM Europe 2023
Pages: 6Language: englishTyp: PDF
Authors:
Reymond, Cedric; Mistre, Lucas; Bau, Plinio; Phung, Thanh Hai; Bergogne, Dominique (Wise-integration, France)
Abstract:
This work demonstrates the impact of GaN HEMTs combined with an appropriate digital control strategy in laptop charger application. A first power stage which is based on a bridgeless PFC totem-pole architecture, is in series with a DC -DC stage, i.e., an LLC resonant converter, to achieve a full operating charger. A 300 Watt AC-DC prototype is proposed and carefully designed including a high frequency range (up to 1 MHz) for the LLC stage in order to use the advantages of GaN technology.