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US 8,941,457 B2Granted
Miniature power inductor and methods of manufacture
AssigneeCooper Technologies Company
InventorsYipeng Yan, Robert James Bogert, Daniel Minas Manoukian
Life of this patent
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Abstract
Magnetic components such as power inductors for circuit board applications include pressure laminate constructions involving flexible dielectric sheets that may integrally include magnetic powder materials. The dielectric sheets may be pressure laminated around a coil winding in an economical and reliable manner, with performance advantages over known magnetic component constructions.
Claims22
A magnetic component comprising:
- a laminated structure comprising:
- a coil winding comprising a first end, a second end, and a winding portion extending between the first and second ends and completing a number of turns;
- and
- a plurality of pre-formed dielectric material layers assembled in a stack, each of the plurality of pre-formed dielectric material layers being fabricated from the same material having the same properties, each of the plurality of pre-formed dielectric material layers being pressed to and joined in surface contact with one another, the assembled pre-formed dielectric material layers surrounding the winding portion of the coil winding;
- wherein the coil winding is separately and independently formed from all of the plurality of pre-formed dielectric material layers;
- and
- terminations coupled to the first and second ends of the coil winding for establishing surface mount circuit connections to the coil winding.
4 more elements
A magnetic component comprising:
- a coil winding comprising a first end, a second end, and a winding portion extending between the first and second ends and completing a number of turns;
- and
- at least one pre-formed dielectric material layer pressed to and joined with the coil winding portion, whereby the at least one dielectric material layer surrounds the winding portion of the coil winding;
- wherein the coil winding is separately and independently formed from the at least one dielectric material layer;
- terminations coupled to the first and second ends of the coil winding for establishing surface mount circuit connections to the coil winding portion.
2 more elements
Dependencies are inferred from the claim text.