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:
Dec. 29, 2020

Filed:

Oct. 10, 2019
Applicant:

Cuvee Systems, Inc., San Jose, CA (US);

Inventors:

Dongsheng Zhou, Cupertino, CA (US);

Kin Chan, Dublin, CA (US);

Raymond Chock, San Jose, CA (US);

Assignee:

Cuvee Systems, Inc., San Jose, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
H05B 39/00 (2006.01); H05B 41/00 (2006.01); H05B 45/37 (2020.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01);
U.S. Cl.
CPC ...
H05B 45/37 (2020.01); H05B 45/10 (2020.01); H05B 45/20 (2020.01);
Abstract

Methods and systems for improved control of dimmable, white color tunable, multiple channel LED based illumination systems are described herein. The methods and systems described herein improve the utilization of LEDs comprising a multiple channel white light LED based illumination system, along with improved control of brightness and color of emitted light. In one aspect, a multiple channel electrical power driver includes an independent current controlled Direct Current/Direct Current (DC/DC) electrical power converter electrically coupled to each LED string having a different color output. The use of independent DC/DC power converters enables current to be supplied to each LED channel simultaneously up to the rated maximum continuous operating current level in each channel. Thus, the sum of the current provided to each LED channel exceeds the rated maximum continuous operating current of each of the LED channels.


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