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:
May. 06, 2025

Filed:

Dec. 02, 2022
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Christian Djelassi-Tscheck, Villach, AT;

Cristian Mihai Boianceanu, Bucharest, RO;

Michael Nelhiebel, Villach, AT;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G01R 31/28 (2005.12);
U.S. Cl.
CPC ...
G01R 31/2879 (2012.12); G01R 31/2856 (2012.12);
Abstract

A circuit includes a power transistor having a main current path between a first supply node and an output pin for connecting a load. A resistance formed by a chip metallization is arranged between the main current path of the power transistor and the output pin. The circuit includes a current measuring circuit coupled to the power transistor and including a sense transistor coupled to the power transistor. The current measuring circuit delivers a measurement current representing a load current flowing through the power transistor. An amplifier circuit generates an amplifier output signal representing the voltage across the resistance, and a control circuit outputs a signal representing the measurement current in a first mode and a signal dependent on the amplifier output signal in a second mode.


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