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. 03, 2015
Filed:
Dec. 28, 2012
Power Integrations, Inc., San Jose, CA (US);
Marvin Cruz Espino, San Jose, CA (US);
Power Integrations, Inc., San Jose, CA (US);
Abstract
Energy transfer elements having a shield to reduce EMI while maintaining a low profile are disclosed. In one example, the transformer may include a transverse shield wire that may be utilized to keep displacement current within the energy transfer element. While windings of the energy transfer element are generally wound axially around the axis of a bobbin in a direction generally perpendicular to the axis of the bobbin, the transverse shield wire may be placed on the bobbin extending over multiple power windings of the energy transfer element in a transverse direction. The transverse shield wire may be situated outside all other windings wound around the bobbin. In some examples, one end of the transverse shield wire may be coupled to a switching node of the energy transfer element while the other end of the transverse shield wire may be coupled to a winding of the energy transfer element.