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:
Sep. 18, 2007
Filed:
Jan. 10, 2006
Volker Karrer, Regensburg, DE;
Michael Kirchberger, Neutraubling, DE;
Volker Karrer, Regensburg, DE;
Michael Kirchberger, Neutraubling, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
To improve EMC shielding for an electronic unit containing at least one electronic power device operated at high frequency and a metal housing thermally coupled to the device to provide heat dissipation, the power device with a device terminal is thermally and electrically coupled to a first metal plate. The first metal plate is coupled in turn to a second metal plate in a particular manner via a first insulating layer. A metal housing with a heat sink through which a cooling fluid can flow is disposed, on another side of a second insulating layer. The improvement in EMC is based on an internal short-circuiting of an interference current produced by the power device over a very short loop.