An integrated magnetic element made of a film-wrapped flat wire
By integrating magnetic components, the transformer and inductor are integrated on the same base plate. By using film-wrapped flat wire and segmented air gap structure, the problems of large size and high loss of traditional magnetic components are solved, realizing a high-efficiency and compact magnetic component design that is suitable for power electronic converters.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- 合肥德珑电子科技有限公司
- Filing Date
- 2026-05-28
- Publication Date
- 2026-07-17
AI Technical Summary
Traditional discrete magnetic components occupy a large space and have high losses in power electronic converters. Furthermore, it is difficult to achieve precise control of transformers and resonant inductors and suppress edge flux effects, resulting in low production efficiency and high costs.
The integrated magnetic component, made of film-wrapped flat wire, integrates the transformer and inductor on the same base plate. The main magnetic circuit of the transformer is formed by the air gap between the middle magnetic core and the side magnetic core, and an independent inductor is wound on the side magnetic core. The resonant inductance value is precisely controlled by the segmented air gap structure, and the coil is directly connected in series inside to save the need for long external PCB traces.
It significantly reduces the size of magnetic components, lowers losses and parasitic inductance, improves the dynamic response characteristics of circuits, and enhances the utilization rate and heat dissipation performance of magnetic cores, making it suitable for large-scale automated production.
Smart Images
Figure CN122417617A_ABST