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.

Date of Patent:
May. 21, 2019

Filed:

May. 08, 2017
Applicant:

Eaton Intelligent Power Limited, Dublin, IE;

Inventors:

Russell Scott Trask, Sharpsburg, GA (US);

Raymond Janik, Fayetteville, GA (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/20 (2006.01); G09G 3/32 (2016.01); G09G 5/02 (2006.01); H05B 33/08 (2006.01); F21V 29/70 (2015.01);
U.S. Cl.
CPC ...
H05B 33/0806 (2013.01); G09G 3/2003 (2013.01); G09G 3/32 (2013.01); G09G 5/02 (2013.01); H05B 33/0803 (2013.01); G09G 2310/0264 (2013.01); G09G 2330/028 (2013.01);
Abstract

A driver of a lighting fixture includes a power circuitry configured to provide a first current to a first string of light emitting diodes (LEDs), a second current to a second string of LEDs, and a third current to a third string of LEDs that emit a third white light. The driver further includes a controller that controls the power circuitry to change an amount of the first current, an amount of the second current, and an amount of the third current to adjust a CCT of an output light provided by a lighting fixture. The output light includes two white lights from among the first white light, the second white light, and the third white light, where the first current, the second current, and the third current are adjustable independent of each other.


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