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. 05, 2019

Filed:

May. 08, 2017
Applicant:

Volterra Semiconductor Llc, San Jose, CA (US);

Inventors:

Sombuddha Chakraborty, Redwood City, CA (US);

Yali Xiong, San Jose, CA (US);

Michael D. McJimsey, Danville, CA (US);

Anthony J. Stratakos, Kentfield, CA (US);

Giovanni Garcea, San Jose, CA (US);

Ilija Jergovic, Palo Alto, CA (US);

Andrew Burstein, Pleasanton, CA (US);

Andrea Pizzutelli, Redwood City, CA (US);

Assignee:

Volterra Semiconductor LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/158 (2006.01); G05F 1/46 (2006.01);
U.S. Cl.
CPC ...
G05F 1/461 (2013.01); G05F 1/462 (2013.01); H02M 3/1584 (2013.01); H02M 2003/1586 (2013.01);
Abstract

A method for controlling a number of phases that are active in a multiphase direct-current-to-direct-current (DC-to-DC) converter includes (a) filtering a current signal representing a magnitude of current processed by the multiphase DC-to-DC converter to generate a filtered signal, (b) comparing the filtered signal to a first threshold value, (c) deactivating one or more phases of the multiphase DC-to-DC converter in response to the filtered signal falling below the first threshold value, (d) comparing the current signal to a second threshold value, the second threshold value being greater than the first threshold value, and (e) activating one or more phases of the multiphase DC-to-DC converter in response to the current signal rising above the second threshold value.


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