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. 06, 2020

Filed:

Sep. 03, 2019
Applicant:

Dialog Semiconductor Inc., Campbell, CA (US);

Inventors:

Pengju Kong, Campbell, CA (US);

Tao Li, Campbell, CA (US);

Hien Bui, Campbell, CA (US);

Wenbo Liang, Campbell, CA (US);

Hanguang Zhang, Campbell, CA (US);

Assignee:

DIALOG SEMICONDUCTOR INC., Campbell, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02M 1/08 (2006.01); H03K 5/1252 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02M 1/08 (2013.01); H03K 5/1252 (2013.01); Y02B 70/1475 (2013.01);
Abstract

A synchronous rectifier controller method is provided for controlling the on and off periods of a synchronous rectifier (SR) switch transistor in a switching power converter. The method includes a first step of monitoring an unfiltered to control whether the SR switch transistor is turned on during a first part of a power switch cycle. The method also includes a second step of monitoring a filtered SR switch signal to control whether the SR switch is turned on during a remaining second part of the power switch cycle.


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