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:
Sep. 07, 2021

Filed:

Dec. 19, 2018
Applicant:

International Business Machines Corporation, Armonk, NY (US);

Inventors:

Thomas Strach, Wildberg, DE;

Preetham M. Lobo, Bangalore, IN;

Tobias Webel, Schwaebisch-Gmuend, DE;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/28 (2006.01); G06F 1/30 (2006.01); G01R 19/165 (2006.01); G06F 30/3312 (2020.01);
U.S. Cl.
CPC ...
G06F 1/28 (2013.01); G01R 19/16552 (2013.01); G06F 1/30 (2013.01); G06F 30/3312 (2020.01);
Abstract

Embodiments of the present disclosure relate to detecting undervoltage conditions at a subcircuit. A power supply current of a first subcircuit is determined over a first number of previous clock cycles. A cross current flowing between the first subcircuit and a second subcircuit is determined over the first number of previous clock cycles. An estimated momentary supply voltage present at the first subcircuit is then determined based on the power supply current of the first subcircuit over the first number of previous clock cycles and the cross current flowing between the first subcircuit and the second subcircuit over the first number of previous clock cycles.


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