4. Materials
4.1 Magnetic materials
The energy stored can be up to 20 times greater in a winding on a magnetic core than in a winding on a non-magnetic material. This energy depends on the induction B.
In fact, all materials subjected to an external magnetic field H can be characterized by the induction B and the field H prevailing at any point of these materials.
In the case of a non-magnetic material, the induction is little different from µ o H, where µ o is the vacuum permeability. It is of the order of 0.1 T (for a non-superconducting coil).
In the case of a magnetic material, induction is expressed by the relation :...
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Indirectly open to international competition, the transformer and inductor industry is currently undergoing major changes. It must adapt to new market requirements: innovation, miniaturization, standardization and automation.
The number of manufacturers is declining rapidly: local subcontractors are disappearing, leaving the way open for structured, specialist manufacturers. The estimated breakdown...
Bibliography
- - Les proceedings des conférences telles que EPF (Électronique de puissance du futur), HFPC (High Frequency Power Conference), PESC (Power Electronic Specialist Conference) présentent des articles intéressants sur les recherches en cours.
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