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. 01, 2019

Filed:

Jan. 03, 2017
Applicant:

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

Inventors:

Anthony E. Baker, Stittsville, CA;

Don R. Dignam, Ottawa, CA;

Harvey Hum, Ottawa, CA;

Jian Meng, Kanata, CA;

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/04 (2006.01); H02M 3/158 (2006.01);
U.S. Cl.
CPC ...
H02M 3/04 (2013.01); H02M 3/1584 (2013.01); H02M 2003/1586 (2013.01);
Abstract

An electronic system includes a multiple POL regulators that supply a regulated voltage to a component within the electronic system. A phase spreading scheme may be implemented so that the POL regulators operate under various phases to reduce voltage noise, high input capacitance, and high radiated emissions. One phase spreading scheme includes a single POL regulator controlling phase spreading so that the other POL regulators operate under different phases. Another phase spreading scheme includes an upstream POL regulator determining a phase offset that may be passed to a downstream POL regulator so that the downstream POL regulator may operate under a different phase relative to the upstream POL regulator.


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