Importance

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Abstract

Disclosed is an integrated magnetic element including a magnetic core structure, a transformer coil group and an excitation coil. The magnetic core structure includes a magnetic frame, at least one transformer magnetic column and at least one induction magnetic column, the transformer magnetic column connects a first side wall and a second side wall of the magnetic frame opposite to each other, there is no air gap between the first side wall and the transformer magnetic column and between the second side wall and the transformer magnetic column, the induction magnetic column is connected to the first side wall, and there is an air gap between the induction magnetic column and the second side wall. The transformer coil group is wound around the transformer magnetic column. The excitation coil is wound around the induction magnetic column and is connected in parallel with a primary-side coil of the transformer coil group.

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First Claim