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. 01, 2019
Filed:
Sep. 12, 2018
Applicant:
Chen-sheng Yang, Kaohsiung, TW;
Inventor:
Chen-Sheng Yang, Kaohsiung, TW;
Assignee:
Other;
Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 33/08 (2006.01); F21S 4/10 (2016.01); F21V 23/02 (2006.01); F21V 23/00 (2015.01);
U.S. Cl.
CPC ...
F21S 4/10 (2016.01); F21V 23/007 (2013.01); F21V 23/023 (2013.01); H05B 33/0842 (2013.01);
Abstract
An LED light string has a plug, a socket, a lighting string connected between the plug and the socket, and a control circuit provided in either the plug or the socket. The control circuit uses at least one current controller to control a driving current flowing through the lighting string stably. When a temperature of the lighting string exceeds a threshold, the current controller activates its over-temperature protection function to lower the driving current. When short-circuit occurs on the lighting string, the current controller activates its short-circuit protection function to lower the driving current.