Power inductor with reduced DC current saturation

Details Power inductor with reduced DC current saturation Power inductor with reduced DC current saturation

2003-12-22

2009-02-10

Mai, Anh T (Department: 2832)

Inductor devices

With closed core interrupted by an air gap

C336S212000, C336S175000

Reexamination Certificate

active

07489219

ABSTRACT:
A power inductor includes a first magnetic core having first and second ends. The first magnetic core includes ferrite bead core material. An inner cavity arranged in the first magnetic core extends from the first end to the second end. A conductor passes through the cavity. A slotted air gap arranged in the first magnetic core material extends from the first end to the second end. A second magnetic core is one of located in and adjacent to the air gap and has a permeability that is lower than the first magnetic core.

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