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.
Patent No.:
Date of Patent:
Nov. 24, 2020
Filed:
Nov. 06, 2018
Applicant:
Dialog Semiconductor Inc., Campbell, CA (US);
Inventors:
Jiang Yu, Campbell, CA (US);
Guang Feng, Campbell, CA (US);
Qiu Sha, Campbell, CA (US);
Qifeng Shi, Campbell, CA (US);
Jianming Yao, Campbell, CA (US);
Assignee:
DIALOG SEMICONDUCTOR INC., Campbell, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 1/36 (2007.01);
U.S. Cl.
CPC ...
H02M 1/36 (2013.01);
Abstract
A switching power supply controller for a switching power supply is provided that measures an input voltage through an application of a load during an input voltage measurement period following connection of the switching power supply to an AC mains. Based upon the measured input voltage, the controller adjusts a start-up delay period so that the start-up delay period is substantially constant despite variations in an AC line voltage for the AC mains.