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1. US20080074225 - Inductor with thermally stable resistance

Office United States of America
Application Number 11535758
Application Date 27.09.2006
Publication Number 20080074225
Publication Date 27.03.2008
Grant Number 08018310
Grant Date 13.09.2011
Publication Kind B2
IPC
H01F 27/29
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
28Coils; Windings; Conductive connections
29Terminals; Tapping arrangements
H01F 27/02
HELECTRICITY
01BASIC ELECTRIC ELEMENTS
FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
27Details of transformers or inductances, in general
02Casings
Applicants Vishay Dale Electronics, Inc.
Inventors Hansen Thomas T.
Hoffman Jerome J.
Shafer Timothy
Schade Nicholas J.
Lange David
Smith Clark
Brune Rod
Agents Volpe and Koenig, P.C.
Title
(EN) Inductor with thermally stable resistance
Abstract
(EN)

An inductor includes an inductor body having a top surface and a first and second opposite end surfaces. There is a void through the inductor body between the first and second opposite end surfaces. A thermally stable resistive element positioned through the void and turned toward the top surface to forms surface mount terminals which can be used for Kelvin type sensing. Where the inductor body is formed of a ferrite, the inductor body includes a slot. The resistive element may be formed of a punched resistive strip and provide for a partial turn or multiple turns. The inductor may be formed of a distributed gap magnetic material formed around the resistive element. A method for manufacturing the inductor includes positioning an inductor body around a thermally stable resistive element such that terminals of the thermally stable resistive element extend from the inductor body.