IP Library › Granted Patent US 7,921,546
Granted Patent B2
US 7,921,546 · App. 12/013,725 · Granted Apr 12, 2011

Method for making a high current low profile inductor

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Quick Facts
Patent No.
US 7,921,546
App. No.
12/013,725
Granted
Apr 12, 2011
Kind
B2
Abstract

A method for making a high current low profile inductor includes forming an inductor element comprising a coil having an open center and an outside surface, the coil also having first and second coil ends, making a dry mixture comprising a dry resin and an insulated dry powdered magnetic powder, and compressing the dry mixture around the outside surface of the coil and within the open center of the coil to create an inductor body without liquefying the dry mixture, whereby the inductor body engages the coil both within the coil open center and also the coil outside surface.

Claims (6)

1. A method for making a high current low profile inductor comprising:

forming an inductor element comprising a coil having and open center and an outside surface;

insulating a magnetic powder;

making a dry mixture comprising a dry resin and a dry insulated magnetic powder by wetting the mixture of resin and magnetic powder and then drying the wetted mixture and then screening the mixture to a predetermined particle size, and then;

compressing the mixture while the mixture is dry around the outside surface of the coil and within the open center of the coil to create an inductor body, whereby the inductor body engages the coil both within the coil open center and also the coil outside surface.

2. The method of claim 1 wherein the predetermined particle size being a particle size of −50 mesh.

Assignments (7)
RELEASE OF SECURITY INTEREST Recorded Jul 17, 2019
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: VISHAY DALE ELECTRONICS, INC.; DALE ELECTRONICS, INC.; VISHAY DALE ELECTRONICS, LLC; VISHAY-DALE
Reel/Frame 049772/0898 →
RELEASE OF SECURITY INTEREST Recorded Jul 17, 2019
From: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
To: VISHAY DALE ELECTRONICS, INC.; DALE ELECTRONICS, INC.; VISHAY INTERTECHNOLOGY, INC.; SILICONIX INCORPORATED; VISHAY SPRAGUE, INC.; VISHAY TECHNO COMPONENTS, LLC; VISHAY EFI, INC.; VISHAY VITRAMON, INC.; SPRAGUE ELECTRIC COMPANY
Reel/Frame 049826/0312 →
SECURITY INTEREST Recorded Jun 12, 2019
From: VISHAY DALE ELECTRONICS, INC.; DALE ELECTRONICS, INC.; VISHAY DALE ELECTRONICS, LLC; VISHAY-DALE, INC.; VISHAY INTERTECHNOLOGY, INC.; SILICONIX INCORPORATED; VISHAY-SILICONIX, INC.; VISHAY-SILICONIX; VISHAY SPRAGUE, INC.; VISHAY EFI, INC.; SPRAGUE ELECTRIC COMPANY; VISHAY GENERAL SEMICONDUCTOR, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 049440/0876 →
SECURITY AGREEMENT Recorded Dec 10, 2015
From: VISHAY DALE ELECTRONICS, LLC
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 037261/0616 →
SECURITY AGREEMENT Recorded Jan 21, 2011
From: VISHAY INTERTECHNOLOGY, INC.; VISHAY DALE ELECTRONICS, INC.; SILICONIX INCORPORATED; VISHAY SPRAGUE, INC.
To: JPMORGAN CHASE BANK, N.A., AS ADMINISTRATIVE AGENT
Reel/Frame 025675/0001 →
RELEASE OF SECURITY INTEREST Recorded Dec 14, 2010
From: COMERICA BANK, AS AGENT, A TEXAS BANKING ASSOCIATION (FORMERLY A MICHIGAN BANKING CORPORATION)
To: VISHAY SPRAGUE, INC., SUCCESSOR-IN-INTEREST TO VISHAY EFI, INC. AND VISHAY THIN FILM, LLC, A DELAWARE CORPORATION; VISHAY DALE ELECTRONICS, INC., A DELAWARE CORPORATION; VISHAY INTERTECHNOLOGY, INC., A DELAWARE CORPORATION; SILICONIX INCORPORATED, A DELAWARE CORPORATION; VISHAY MEASUREMENTS GROUP, INC., A DELAWARE CORPORATION; VISHAY GENERAL SEMICONDUCTOR, LLC, F/K/A GENERAL SEMICONDUCTOR, INC., A DELAWARE LIMITED LIABILITY COMPANY; VISHAY VITRAMON, INCORPORATED, A DELAWARE CORPORATION; YOSEMITE INVESTMENT, INC., AN INDIANA CORPORATION
Reel/Frame 025489/0184 →
SECURITY AGREEMENT Recorded Mar 2, 2010
From: VISHAY SPRAGUE, INC., SUCCESSOR IN INTEREST TO VISHAY EFI, INC. AND VISHAY THIN FILM, LLC; VISHAY DALE ELECTRONICS, INC.; VISHAY INTERTECHNOLOGY, INC.; SILICONIX INCORPORATED; VISHAY MEASUREMENTS GROUP, INC.
To: COMERICA BANK, AS AGENT
Reel/Frame 024006/0515 →