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. 29, 2024
Filed:
Apr. 22, 2021
Applicant:
Signify Holding B.v., Eindhoven, NL;
Inventors:
Tijmen Cornelis Van Bodegraven, Eindhoven, NL;
Reinhold Elferich, Eindhoven, NL;
Assignee:
SIGNIFY HOLDING B.V., Eindhoven, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 45/30 (2020.01); H05B 45/382 (2020.01); H05B 45/50 (2022.01); H05B 47/24 (2020.01);
U.S. Cl.
CPC ...
H05B 45/50 (2020.01); H05B 45/382 (2020.01); H05B 47/24 (2020.01);
Abstract
A lamp driver delivers an output voltage and output current to a lamp load. A current regulating circuit at a secondary side provides a feedback signal for use by the driver when in a current regulation mode. An overvoltage protection circuit detects an overvoltage condition of an output voltage and modulates the feedback signal during detection of the overvoltage condition. The overvoltage condition can then be recognized more easily based on the resulting modulation of the output voltage.