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:
May. 11, 2010
Filed:
Oct. 29, 2007
Applicants:
Erich Scheikl, Villach, AT;
Alberto Zanardi, Latschach, AT;
Inventors:
Erich Scheikl, Villach, AT;
Alberto Zanardi, Latschach, AT;
Assignee:
Infineon Technologies AG, Neubiberg, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02H 3/26 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method and an apparatus for monitoring a load driven by a power semiconductor switch. The method may comprise, for example: driving a control electrode of the power semiconductor switch, in such a way that a rise in the load current through the power semiconductor switch is effected after a delay time; generating a diagnostic current flowing through the load, wherein the diagnostic current brings about a voltage drop across the load before the delay time has elapsed; and evaluating the voltage drop across the load before the delay time has elapsed.