Integrated magnetic passive devices using magnetic film
a magnetic film and integrated technology, applied in the direction of inductance with magnetic core, inductance association of printed circuit non-printed electric components, inductance, etc., can solve the problems of reduced performance, large and/or expensive circuit design, and reduced performance of circuit components
Inactive Publication Date: 2019-02-14
APPLE INC
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- Application Information
AI Technical Summary
Benefits of technology
The design achieves a balance of small size and low cost, improving inductive performance while allowing for flexible inductance adjustments, thus enhancing the functionality of power supply, voltage regulation, and wireless circuits in portable electronics.
Problems solved by technology
Inductor designs may be large and / or expensive when compared to other circuit components.
Limiting a number of inductors may result in more complex circuit designs with reduced performance.
Method used
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Embodiment Construction
[0005]Various embodiments of an inductive device are disclosed. Broadly speaking, an inductive device, a method for creating the inductive device, and a system utilizing the inductive device are disclosed. An embodiment of the inductive device includes a first wire coupled to a first terminal and to a second terminal, a non-conductive material surrounding the first wire, and a magnetic film. The non-conductive material spans a region between the first terminal and the second terminal. The magnetic film surrounds at least a portion of the non-conductive material between the first terminal and the second terminal. The first wire has a first amount of inductance.
[0006]In a further embodiment, a second wire is surrounded by the non-conductive material and is parallel to the first wire. The non-conductive material is further configured to fill space between the second wire and the magnetic film and between the second wire and the first wire.
[0007]In another embodiment, the second wire is...
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Abstract
An inductive device is disclosed, including a first wire coupled to a first terminal and to a second terminal, a non-conductive material surrounding the first wire, and a magnetic film. The non-conductive material spans the region from the first terminal to the second terminal. The magnetic film surrounds at least a portion of the non-conductive material between the first terminal and the second terminal. The first wire has a first amount of inductance.
Description
PRIORITY CLAIM[0001]The present application is a continuation of U.S. application Ser. No. 15 / 163,909, filed May 25, 2016 (now U.S. Pat. No. 10,102,962), which claims priority to U.S. Provisional Appl. No. 62 / 221,835, filed Sep. 22, 2015; the disclosures of each of the above-referenced applications are incorporated by reference herein in their entireties.BACKGROUNDTechnical Field[0002]Embodiments described herein are related to the field of magnetic passive circuit components. More particularly, these embodiments relate to a structure for and method of building inductive devices.Description of the Related Art[0003]Magnetic devices, such as, for example, inductors, may be used in a variety of circuits. Inductors may be used to resist fluctuations of an electric current. The current stabilizing property of inductors makes them useful in power supply circuits and voltage regulating circuits, helping to generate low noise power signals. Inductors may also be used in wireless circuits, p...
Claims
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IPC IPC(8): H01F27/28H01F41/10H01F27/32H01F27/29H05K1/18
CPCH01F41/10H01F27/32H05K1/181H01F27/2823H05K2201/1003H01F27/29H01F17/06H01F2017/065
Inventor CAPPABIANCA, DAVID P.CAO, ZHITAOLAI, KWAN-YU
Owner APPLE INC