Back to results
US 2014/0152410 A1Published application
Integrated tunable inductors
AssigneeArizona Board of Regents, a body corporate of the State of Arizona Acting for and on behalf of Arizo
InventorsHongbin Yu, Hao Wu
Life of this patent
Estimating the term…
Abstract
An integrated inductor can be tunable via a control current which alters the magnetic flux density in a permeable magnetic material. The resulting inductor can be adjusted in-circuit, and may be suitable for applications such as dc-dc converters, RF circuits, or filters requiring operation at high frequencies and across wide bandwidths.
Claims20
An integrated tunable inductor, comprising:
- a substrate configured to receive an inductor;
- an inductor located proximate to the substrate;
- a magnetic material located proximate to the inductor;
- a first control line located proximate to the magnetic material, wherein the first control line is configured for the conduction of an electric current;
- and
- a controller configured to tune the magnitude of the electric current.
3 more elements
A method of varying the inductance of an integrated tunable inductor, the method comprising:
- passing a first current through a first control line located proximate to an inductor;
- inducing a first electromagnetic field to radiate from the control line and traverse a first magnetic material located proximate to the inductor, wherein the first magnetic material has a variable magnetic flux density;
- varying the magnitude of the first current in response to the inducing a first electromagnetic field;
- changing the variable magnetic flux density of the magnetic material in response to the varying the magnitude of the first current;
- and
- altering the capacity of the inductor to store energy in a second electromagnetic field radiating from the inductor and traversing the first magnetic material in response to the changing the variable magnetic flux density.
3 more elements
A method of manufacturing a planar inductor, the method comprising:
- configuring a substrate to receive an inductor;
- forming an inductor on the substrate by depositing a conductive material on the substrate;
- positioning a first control line proximate to the inductor, wherein the first control line is configured for the conduction of a first electric current;
- connecting a controller in electrical communication with the first control line;
- and
- configuring the controller to tune the magnitude of the first electric current.
3 more elements
Dependencies are inferred from the claim text.