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:
Oct. 25, 2016
Filed:
Apr. 01, 2014
Applicant:
Infineon Technologies Austria Ag, Villach, AT;
Inventors:
Xiao Wu Gong, Singapore, SG;
Yong Siang Teo, Singapore, SG;
Assignee:
Infineon Technologies Austria AG, Villach, AT;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02J 3/12 (2006.01); G05F 1/00 (2006.01); H02M 3/335 (2006.01); H02M 1/00 (2006.01);
U.S. Cl.
CPC ...
H02M 3/33515 (2013.01); H02M 3/33592 (2013.01); H02M 2001/0048 (2013.01); Y02B 70/1475 (2013.01); Y02B 70/1491 (2013.01);
Abstract
In accordance with an embodiment, a method of operating a switched-mode power supply includes detecting a voltage decrease in a secondary winding of a transformer by detecting a first voltage transient using a sensor capacitively coupled to the secondary winding of the transformer. A secondary switch coupled to the secondary winding of the transformer is turned on based on when the first voltage transient is detected.