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:
Jul. 27, 2021
Filed:
Nov. 10, 2017
Applicants:
Dialog Semiconductor Inc., Campbell, CA (US);
Dialog Semiconductor (Uk) Limited, London, GB;
Inventors:
Jun Zheng, Shenzhen, CN;
Jianming Yao, Campbell, CA (US);
Yimin Chen, Campbell, CA (US);
Huaming Guo, Shenzhen, CN;
Zhaowu Luo, Shenzhen, CN;
Assignees:
Dialog Semiconductor Inc., Campbell, CA (US);
Dialog Semiconductor (UK) Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02M 3/335 (2006.01); H02J 7/00 (2006.01); H02M 1/36 (2007.01); H02M 1/32 (2007.01);
U.S. Cl.
CPC ...
H02M 3/33592 (2013.01); H02J 7/00 (2013.01); H02J 7/0036 (2013.01); H02J 7/0072 (2013.01); H02M 1/32 (2013.01); H02M 1/36 (2013.01);
Abstract
A switch detection circuit is provided that senses the voltage on a rectifying component for rectifying a secondary winding current through a secondary winding of a flyback converter's transformer to determine whether a power switch transistor attached to a primary winding of the transformer has ceased cycling.