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Step gap inductor apparatus and methods

A step and gap technology, applied in the direction of inductors, fixed inductors, transformer/inductor housings, etc., can solve the problem of lack of highly customizable, low-cost and high-performance inductor configurations

Inactive Publication Date: 2017-01-18
PULSE ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Despite the aforementioned variety of prior art inductor configurations, there is a distinct lack of small, highly customizable, low cost, high performance inductor configurations that provide inductance values ​​that vary depending on the amount of current flowing through it

Method used

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  • Step gap inductor apparatus and methods
  • Step gap inductor apparatus and methods
  • Step gap inductor apparatus and methods

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Embodiment Construction

[0032] Reference is now made to the drawings, wherein like numerals refer to like parts throughout.

[0033] As used herein, the term "electronic component" is used to refer to components adapted to provide some electrical function, including without limitation inductive reactors ("choke coils"), transformers, filters, gaps, core toroids, inductors , capacitors, resistors, operational amplifiers and diodes, whether discrete or integrated, individually or in combination. For example, the improved ring device disclosed in assignee's U.S. Patent No. 6,642,827, filed September 13, 2000, entitled "Advanced Electronic Microminiature Coil and Method of Manufacturing," which is hereby incorporated by reference in its entirety, may be used with Embodiments of the disclosure are included for use in combination.

[0034] As used herein, the term "magnetically permeable" refers to a number of materials commonly used to form inductor cores or similar components, including without limitati...

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Abstract

The invention provides a low cost, low profile, small size and high performance inductive device for use in electronic circuits. In one exemplary embodiment, the device includes a ferrite core comprising a step gap, a winding disposed on the core, and a magnetic powder and epoxy mixture packed in to create a cubic-shaped inductor optimized for electrical and magnetic performance. Additionally, the incorporation of the magnetic powder and epoxy mixture around the step gap eliminates fringing magnetic fields during device operation thereby minimizing adverse electromagnetic inference on adjacently disposed electronic components. The geometry and placement of the step gaps can be varied in order to optimize performance parameters associated with the underlying inductive device. Methods of manufacture and use for the inductive device are also disclosed.

Description

[0001] priority [0002] This application claims priority to co-applied and commonly owned U.S. Provisional Patent Application Serial No. 62 / 191,138, filed July 10, 2015, of the same title, and U.S. Patent Application Serial No. 15 / 204,713, filed July 07, 2016, which This application is hereby incorporated by reference in its entirety. [0003] copyright [0004] Portions of the disclosure of this patent document contain material that is subject to copyright protection. The copyright owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent files or records, but otherwise reserves all copyrights. [0005] background technical field [0006] The present disclosure relates generally to inductive circuit elements, and more particularly to inductive devices having various desirable electrical and / or mechanical properties, and methods of operating and fabricating ind...

Claims

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Application Information

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IPC IPC(8): H01F27/02H01F27/30H01F27/36H01F41/00
CPCH01F27/255H01F27/292H01F27/306H01F2017/048H01F27/022H01F27/36
Inventor 马弘中陈淑辉
Owner PULSE ELECTRONICS