A Novel Mains Operated LED Driver Using a GaN AC Switch
Conference: PCIM Europe 2017 - International Exhibition and Conference for Power Electronics, Intelligent Motion, Renewable Energy and Energy Management
05/16/2017 - 05/18/2017 at Nürnberg, Deutschland
Proceedings: PCIM Europe 2017
Pages: 4Language: englishTyp: PDF
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Authors:
Ladhari, Othman (Univ. Grenoble Alpes, CEA-Leti, Grenoble, France)
Sterna, Leo; Perichon, Pierre; Bergogne, Dominique (Univ.Grenoble Alpes, CEA-Leti, Grenoble, France)
Abstract:
It is now common to use LEDs for lightning, especially in mains operated circuits. The challenge has long been to reduce the DC bus capacitor value and to propose new circuits to interface a high voltage AC source with low voltage DC load (LEDs). In this paper a novel structure, Rectifier Bridge Free, using a single AC power stage, is proposed. It implements newly developed GaN AC switches to get the most of the circuit structure.