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 9655190 B1

PDF
Full Text
Expired
Date of Patent:
May. 16, 2017

Filed:

Dec. 23, 2014
Applicant:

Philips Lighting Holding B.v., Eindhoven, NL;

Inventor:

Andrew Ulrich Rutgers, Eindhoven, NL;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 37/00 (2006.01); H05B 39/00 (2006.01); H05B 41/14 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0845 (2013.01); H05B 33/0818 (2013.01); H05B 33/0854 (2013.01); H05B 33/0857 (2013.01); H05B 33/0827 (2013.01); H05B 33/0872 (2013.01);
Abstract

Drivers () for driving first and second light emitting diode circuits () that produce first and second light may comprise first generators () for in response to ripple information generating first control signals and first controllers () for in response to the first control signals controlling first intensities of the first light such that a sum of the first and second intensities the first and second light is less fluctuating than each one of these intensities. The ripple information defines parameters of ripples resulting from rectifications of alternating-current signals. The drivers () may further comprise second generators () for in response to the ripple information generating second control signals and second controllers () for in response to the second control signals controlling the second intensities. Ripple based flickering is reduced and smaller capacitors can be used.


Find Patent Forward Citations

Rutgers, Andrew. (2017). Ripple based light emitting diode driving (U.S. Patent No. 9655190). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9655190

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

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