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:
Oct. 04, 2022

Filed:

Nov. 08, 2019
Applicant:

Cisco Technology, Inc., San Jose, CA (US);

Inventors:

Michael Robert Grant, San Jose, CA (US);

Dean Ton Nguyen, San Jose, CA (US);

Matthew Patrick Howard, San Jose, CA (US);

Assignee:

CISCO TECHNOLOGY, INC., San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G06F 1/3206 (2019.01); G06F 1/3234 (2019.01); G06F 1/3287 (2019.01); G05F 1/577 (2006.01);
U.S. Cl.
CPC ...
G06F 1/3206 (2013.01); G05F 1/577 (2013.01); G06F 1/325 (2013.01); G06F 1/3287 (2013.01);
Abstract

Presented herein are methodologies for providing power for last gasp operations of a circuit board when power is unexpectedly interrupted. A method includes monitoring a voltage of a main power supply; when the voltage of the main power supply falls below a predetermined threshold, disabling a first point of load (POL) converter that is being powered by the main power supply; boosting a voltage of an output capacitor of the first point of load converter to obtain a boosted voltage; and supplying the boosted voltage to an input of a second point of load converter.


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