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:
Mar. 22, 2022

Filed:

Sep. 23, 2019
Applicant:

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

Inventors:

Erik English, Beacon, NY (US);

Akil Khamisi Sutton, Dutchess County, NY (US);

Pawel Owczarczyk, Highland, NY (US);

Michael Sperling, Poughkeepsie, NY (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H03H 11/26 (2006.01); G05F 3/24 (2006.01); G01R 17/02 (2006.01); G01R 19/165 (2006.01);
U.S. Cl.
CPC ...
G05F 3/247 (2013.01); G01R 17/02 (2013.01); G01R 19/1659 (2013.01); G01R 19/16519 (2013.01); G01R 19/16547 (2013.01);
Abstract

Aspects of the invention include a first voltage sensitive circuit including first transistors, the first transistors being coupled together so as to be operatively coupled to a first current source. A second voltage sensitive circuit includes second transistors, the second transistors being coupled together so as to be operatively coupled to a second current source, the first voltage sensitive circuit being coupled to the second voltage sensitive circuit to form a delay chain, the first and second current sources being responsive to changes in voltage of a power supply according to a voltage reference. A voltage sensitive current reference module is coupled to the first and second current sources and configured to supply the voltage reference to the first and second current sources, the voltage sensitive current reference module being responsive to changes in the voltage of the power supply.


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