On 15 September 2026, Hengfu Power was granted a utility model patent by the National Intellectual Property Administration for its independently developed invention, ‘A Flyback Switching Power Supply with Synchronous Rectification and No Auxiliary Winding’; the application for this patent was filed on 29 July 2025. The patent eliminates the auxiliary windings required by traditional flyback power supplies and adopts a synchronous rectification scheme, thereby simplifying the circuit structure, reducing component costs, minimising power supply losses, improving conversion efficiency, achieving a lighter and more compact design, and enhancing the overall reliability of the unit.

With over thirty years’ experience in the switch-mode power supply industry, Hengfu remains committed to R&D-driven innovation, continuously securing proprietary patents and establishing a technology commercialisation system comprising “R&D project initiation – patent strategy – product commercialisation”. This patent represents a significant achievement for Hengfu in the innovation of power supply architecture, further strengthening the company’s core competitiveness. Hengfu will continue to focus on original technology, refine high-performance industrial power supply products, and keep pace with the trend towards localisation and upgrading in the manufacturing sector.