The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 24, 1992
Filed:
Sep. 16, 1991
Applicant:
Inventor:
Richard J Charles, Schenectady, NY (US);
Assignee:
General Electric Company, Schenectady, NY (US);
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
29605 ; 29607 ; 336229 ;
Abstract
A small, high-frequency, high-efficiency inductor includes a segmented toroidal core with a winding wound thereon. The toroidal core has either a solid core structure, a laminated core structure, or a strip-wound core structure that is cut into segments. The segmented toroidal core is made of a relatively high-permeability magnetic material and has a plurality of narrow gaps having a width less than approximately 2% of an average linear dimension across the face of each segment. Nonconductive, nonmagnetic spacers are inserted and bonded in the gaps. The inductor winding preferably comprises litz wire in order to further reduce losses.