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:
May. 02, 2023
Filed:
Jul. 07, 2020
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Theo Gerrit Zijlman, Tilburg, NL;
Henricus Marius Joseph Maria Kahlman, Dongen, NL;
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/18 (2020.01); H05B 45/34 (2020.01); H05B 45/46 (2020.01); H05B 45/347 (2020.01); H05B 45/325 (2020.01); H05B 45/375 (2020.01);
U.S. Cl.
CPC ...
H05B 45/18 (2020.01); H05B 45/325 (2020.01); H05B 45/34 (2020.01); H05B 45/347 (2020.01); H05B 45/375 (2020.01); H05B 45/46 (2020.01);
Abstract
A lighting arrangement such as a LED lamp comprises a light source and associated current driver, or a set of at least two parallel light sources and associated current drivers, supplied by a DC voltage from a voltage-regulated power converter. A feedback circuit provides a temperature-dependent control input to a control loop of the power converter, such that the DC voltage is adjusted in dependence on a sensed temperature. In this way, the voltage headroom required can be reduced, and efficiency gains are made.