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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.:

US 12543251 B1

PDFFull Text
Date of Patent:
Feb. 03, 2026

Filed:

Feb. 08, 2022

Lighting circuit

Applicant:

Signify Holding B.v., Eindhoven, NL;

Inventors:

Berend Jan Willem Ter Weeme, Eindhoven, NL;

Bertrand Johan Edward Hontele, Breda, NL;

Assignee:

SIGNIFY HOLDING B.V., Eindhoven, NL;

Attorney:
Primary Examiner:

Jimmy T Vu

Int. Cl.
CPC ...
H05B 45/30 (2020.01); H05B 45/20 (2020.01); H05B 45/48 (2020.01); H05B 45/345 (2020.01);
U.S. Cl.
CPC ...
H05B 45/48 (2020.01); H05B 45/20 (2020.01); H05B 45/345 (2020.01);
Abstract

A lighting circuit has a series connection of a plurality of lighting channels of different output colors, driven by a current source. Some or all of the lighting channels comprise a LED arrangement, a shunt switch in parallel with the LED arrangement and a current leakage path in parallel with the LED arrangement. The current leakage path is used to calibrate the current flowing through the LED arrangement and thereby take account of the LED characteristics.

Find Patent Forward Citations

Ter Weeme, Berend Jan Willem. (2026). Lighting circuit (U.S. Patent No. 12543251). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12543251

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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