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:
Jul. 25, 2006
Filed:
Jan. 03, 2002
Peter Friedrichs, Nürnberg, DE;
Heinz Mitlehner, Uttenreuth, DE;
Reinhold Schörner, Grossenseebach, DE;
Peter Friedrichs, Nürnberg, DE;
Heinz Mitlehner, Uttenreuth, DE;
Reinhold Schörner, Grossenseebach, DE;
Siemens Aktiengesellschaft, Munich, DE;
Abstract
A switching device includes at least one MOSFET switching element and at least one JFET protective element, which is connected electrically in series to the switching element and which limits the electric current to a maximum current (saturated current) and control elements, which increase the maximum current of the JFET protective element during the closing operation or in a time-delayed manner, at least in the temporal mean, to at least a higher value and subsequently reduce said maximum current to at least a lower value. The advantage of said switching device is that it allows higher starting or closing overcurrents, which are subsequently limited.