Analysis and design of a novel single-stage LED driver based on soft-switching resonant converter

Key Points

• The aim is to design and analyze a new single-stage LED driver that combines a rectifier and resonant converter for enhanced efficiency.
• Proposed a totem-pole bridgeless boost PFC rectifier integrated with an LCC resonant converter.
• Operated the rectifier in discontinuous conduction mode to achieve high power factor.
• Implemented zero voltage switching and zero current switching techniques to reduce semiconductor components and increase efficiency.
• Designed and fabricated a 100W LED prototype to validate the concept.
• Experimental results confirmed that the proposed driver meets the theoretical efficiency predictions.
• Significant improvements in power factor and reduction in component count were observed.
• The design demonstrated effective zero voltage and zero current switching, further enhancing performance.

Abstract