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:
Jan. 14, 2003
Filed:
Apr. 27, 2000
Applicant:
Inventors:
Donald D. Baumann, San Jose, CA (US);
Philip H. Sutterlin, Saratoga, CA (US);
Assignee:
Echelon Corporation, San Jose, CA (US);
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01F 2/702 ;
U.S. Cl.
CPC ...
H01F 2/702 ;
Abstract
A toroidal transformer for a communications application where a first winding is wound on the core. A separator comprising a pair of annular-shaped cups then encloses the core and first winding. A second winding is wound on the outer surface of the separator. The separator, fabricated from a low K material, provides substantial reduction in the capacitance between the first and second winding.