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:
Nov. 12, 2024
Filed:
Mar. 29, 2021
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Wei Li, Shanghai, CN;
Yuanqiang Liu, Shanghai, CN;
Meiping Mao, Shanghai, CN;
Yuan Xin Chen, Shanghai, CN;
Ru Yu Li, Shanghai, CN;
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/18 (2020.01); H02M 1/32 (2007.01); H05B 45/37 (2020.01);
U.S. Cl.
CPC ...
H05B 45/18 (2020.01); H02M 1/327 (2021.05); H05B 45/37 (2020.01);
Abstract
A lighting device connects to an external power supply and includes a light emitting load and a secondary load. A temperature measurement is obtained related to a temperature of the external power supply. The secondary load is activated, thereby allowing the secondary load to be powered by the external power supply, when the temperature measurement is below a threshold. Thus, in cold conditions, an increased load is presented to the external power supply to assist start up of the external power supply in cold conditions.