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:
Jan. 01, 2019
Filed:
Feb. 27, 2018
Applicant:
Dialog Semiconductor Inc., Campbell, CA (US);
Inventors:
Guang Feng, Campbell, CA (US);
Qifeng Shi, Campbell, CA (US);
Jiang Yu, Campbell, CA (US);
Qiu Sha, Campbell, CA (US);
Yong Xiong Lin, Campbell, CA (US);
Assignee:
DIALOG SEMICONDUCTOR INC., Campbell, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02M 1/12 (2006.01); H02J 3/24 (2006.01); H02M 5/293 (2006.01); H02M 5/12 (2006.01);
U.S. Cl.
CPC ...
H02M 1/126 (2013.01); H02J 3/24 (2013.01); H02M 5/12 (2013.01); H02M 5/293 (2013.01);
Abstract
A controller for a switching power converter is provided with a single detection pin through which the controller monitors whether the switching power converter is connected to an AC mains. Should a voltage for the detection pin indicate that the switching power converter is disconnected from the AC mains, the controller asserts the detection pin voltage to trigger a bleeder circuit to discharge an X class capacitor.