Patent ID: 11862389
Assignee: VOLTERRA SEMICONDUCTOR LLC
Field: Electrical machinery, apparatus, energy (Electrical engineering)
Classification: CPC H  Y | IPC H

Claim 0:
1. A magnetic device, comprising:
a plurality of magnetic film layers forming a magnetic core,
one or more of the magnetic film layers having:
(a) a plurality of first windings around a plurality of respective first axes in the magnetic core, the plurality of first windings enclosing a plurality of respective first areas, wherein a first space exists between each winding of the plurality of first windings in a horizontal dimension; and
(b) a second winding around a second axis, the second winding enclosing the plurality of first windings, wherein a second space exists between the plurality of first windings and the second winding,
wherein the first and second spaces comprise material with a smaller magnetic permeability than the magnetic core.