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:
Dec. 05, 2017

Filed:

Sep. 21, 2012
Applicant:

Ams Ag, Unterpremstätten, AT;

Inventor:

Josef Kriebernegg, Graz, AT;

Assignee:

AMS AG, Unterpremstaetten, AT;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/02 (2006.01); H05B 33/08 (2006.01); G01R 31/26 (2014.01);
U.S. Cl.
CPC ...
G01R 31/025 (2013.01); G01R 31/2635 (2013.01); H05B 33/0887 (2013.01);
Abstract

A circuit arrangement comprises a first terminal for connection to a voltage source, a second terminal for connection to a first current sink and a third terminal for supplying a potential signal. A first diode string can be connected to the voltage source on the anode side and to the first current sink on the cathode side. The third terminal can be coupled to the cathode side of the first diode string by a resistor. An adjustable reference current sink is coupled to the third terminal, for generating a reference current, and comparison unit coupled to the third terminal on the input side for providing a short-circuit detection signal in dependence on a difference between the potential signal and an adjustable reference voltage. The potential signal can be supplied in dependence on a first short-circuit voltage across the first diode string and in dependence on the reference current.


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