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:
Dec. 24, 2024

Filed:

Nov. 16, 2022
Applicant:

Shaoxing Yuanfang Semiconductor Co., Ltd., Shaoxing, CN;

Inventors:

Arnold J D'Souza, Bangalore, IN;

Shyam Somayajula, Bangalore, IN;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/00 (2007.01); H02M 3/07 (2006.01);
U.S. Cl.
CPC ...
H02M 3/07 (2013.01); H02M 1/0009 (2021.05);
Abstract

A high-side switch and a low-side switch respectively drive the inductor in a first phase and a second phase periodically. The inductor current during a longer phase of the first phase and the second phase is measured as a first portion. Peak of the inductor current at a transition from the shorter phase to the longer phase is estimated. The estimating includes comparing an estimated magnitude with a first magnitude of the inductor current at the transition in a first period, and changing the estimated magnitude. The comparing and changing are repeated until the estimated magnitude equals the first magnitude to identify the peak. A second portion of the inductor current during the shorter phase is generated based on the estimated magnitude. The first and second portions are provided as an emulated current of the inductor current.


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