3 results about "Flux concentration" patented technology

This application relates to the field of high-power high-frequency power supply technology, and discloses a method and device for high-frequency application of planar transformers based on nanocrystalline magnetic cores. The method first establishes a simulation model and collects multi-physics field measured data, fusing them to form a full-dimensional multi-field dataset to accurately locate flux concentration areas, loss hotspot areas, and stress distortion areas. Then, it extracts flux features, constructs a magnetic domain-flux-loss coupling feature vector, and locates abnormal regions. Subsequently, it prepares a gradient nanocrystalline magnetic core based on the abnormal data, optimizes the core structure and winding topology to match the current and flux distribution. Next, it integrates the core and windings, adjusts the magnetic domain flux distribution, and debugs the matching state. Finally, it verifies the optimization effect through retesting, iteratively updates parameters, and solidifies a standardized parameter system. This application can effectively suppress high-frequency eddy current losses, improve uneven flux distribution and local overheating problems, enhance transformer operating efficiency and reliability, and achieve low-loss, high-stability high-frequency operating performance.

A transducer system has a magnetic core that includes a gap between two end surfaces of the magnetic core. A first cover structure is arranged adjacent to the first end surface, and a second cover structure is arranged adjacent to the second end surface. The first and second cover structures each include a material having a higher magnetic permeability than air. The first cover structure includes a first flux concentration surface, and the second cover structure includes a second flux concentration surface facing the first flux concentration surface. A magnetic flux measuring device is positioned between the first and second flux concentration surfaces. The cover structures concentrate the magnetic flux in the magnetic core onto the respective concentration surfaces. The concentration surfaces enable more accurate measurement of the magnetic flux.