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:
Sep. 29, 2020
Filed:
Oct. 02, 2019
Applicant:
Silergy Semiconductor Technology (Hangzhou) Ltd, Hangzhou, Zhejiang Province, CN;
Inventors:
Jianxin Wang, Hangzhou, CN;
Guojia Liu, Hangzhou, CN;
Assignee:
Silergy Semiconductor Technology (Hangzhou) LTD, Hangzhou, CN;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2020.01); H05B 37/02 (2006.01); H05B 45/37 (2020.01); H05B 45/395 (2020.01); H05B 45/44 (2020.01); H05B 45/10 (2020.01); H05B 45/3575 (2020.01);
U.S. Cl.
CPC ...
H05B 45/37 (2020.01); H05B 45/10 (2020.01); H05B 45/3575 (2020.01); H05B 45/395 (2020.01); H05B 45/44 (2020.01);
Abstract
A method of controlling a dimmable LED driving circuit, can include: detecting a voltage across an electrolytic capacitor in the LED driving circuit; determining whether the voltage across the electrolytic capacitor is less than a predetermined value; and charging the electrolytic capacitor by an auxiliary circuit when the voltage across the electrolytic capacitor is less than the predetermined value, in order to reduce time required for the voltage across the electrolytic capacitor to rise to a start-up voltage of an LED load.