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:
Jan. 31, 2023

Filed:

Sep. 17, 2020
Applicant:

Infineon Technologies Ag, Neubiberg, DE;

Inventors:

Alexander Mayer, Treffen, AT;

Marco Faricelli, Villach, AT;

Robert Illing, Finkenstein, AT;

Assignee:

Infineon Technologies AG, Neubiberg, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H03K 17/082 (2006.01); H03K 17/14 (2006.01); G01K 3/08 (2006.01); G01R 19/165 (2006.01); G01K 3/00 (2006.01); G01R 19/25 (2006.01);
U.S. Cl.
CPC ...
H03K 17/0822 (2013.01); G01K 3/005 (2013.01); G01K 3/08 (2013.01); G01R 19/16571 (2013.01); G01R 19/2513 (2013.01); H03K 17/145 (2013.01);
Abstract

An electronic fuse circuit includes an electronic switch with a load current path coupled between an output node and a supply node and that connects or disconnects the output node and the supply node in accordance with a drive signal. The circuit includes a control circuit to generate the drive signal based on an input signal. A monitoring circuit is included in the control circuit to receive a current sense signal representing the load current passing through the load current path and to determine a first protection signal based on the current sense signal and a wire parameter. The first protection signal is indicative of whether to disconnect the output node from supply node. The control circuit changes from normal mode to idle mode when the load current is below a given current threshold and another criterion is fulfilled.


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