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.

Date of Patent:
Feb. 10, 2015

Filed:

Dec. 02, 2008
Applicants:

Alfons Graf, Kaufering, DE;

Christian Arndt, Munich, DE;

Inventors:

Alfons Graf, Kaufering, DE;

Christian Arndt, Munich, DE;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02H 3/08 (2006.01); H02H 9/02 (2006.01); H03K 17/082 (2006.01); H02H 3/00 (2006.01); H02H 7/00 (2006.01); H02H 9/08 (2006.01); H02H 3/22 (2006.01); H03K 17/08 (2006.01);
U.S. Cl.
CPC ...
H03K 17/0822 (2013.01); H03K 2017/0806 (2013.01);
Abstract

A circuit arrangement includes a semiconductor switch having a control terminal and a load path. A drive circuit is coupled to the control terminal of the semiconductor switch. The drive circuit has a current measuring arrangement for determining a load current flowing through the load path and is designed to prevent the semiconductor switch from being driven in the off state if the load current exceeds a predetermined load current threshold value. A fuse is coupled in series with the load path of the semiconductor switch triggers if a triggering condition dependent at least on the load current is present.


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