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:
Aug. 29, 2017
Filed:
Sep. 30, 2016
Applicant:
Xicato, Inc., San Jose, CA (US);
Inventor:
Barry Mark Loveridge, San Jose, CA (US);
Assignee:
Xicato, Inc., San Jose, CA (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0812 (2013.01); H05B 33/0815 (2013.01); H05B 33/0845 (2013.01);
Abstract
An LED based lighting system includes a controlled current power supply (CCPS) coupled to provide electrical power to an LED based light engine having a plurality of light emitting diodes electrically coupled in series. The LED based lighting system further includes a controlled voltage power supply (CVPS) electrically coupled to the CCPS. A difference between an output voltage on the output node of the CVPS and an input voltage at the input node of the CCPS is used to adjust the output voltage at the output node of the CVPS.