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:
Feb. 02, 2021

Filed:

Jun. 13, 2019
Applicant:

Lenovo Enterprise Solutions (Singapore) Pte. Ltd., Singapore, SG;

Inventors:

Douglas I. Evans, Cary, NC (US);

Brian C. Totten, Durham, NC (US);

Dipak N. Tailor, Cary, NC (US);

Jamaica La Quay Barnette, Durham, NC (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/34 (2007.01); H02M 3/158 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 1/34 (2013.01); H02M 3/158 (2013.01); H02M 3/1584 (2013.01); H02M 2001/342 (2013.01);
Abstract

An apparatus includes a voltage regulator including a high-side field-effect transistor, a low-side field-effect transistor, an inductor, and a conductive net connecting the high-side field-effect transistor, the low-side field-effect transistor and the inductor. The apparatus further includes an attenuation circuit coupled to the conductive net, wherein the attenuation circuit includes an electronic switch that enables and disables an amount of attenuation provided by the attenuation circuit. Examples of the attenuation circuit include a snubber circuit and a boost resistor circuit.


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