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 8310172 B1

PDF
Full Text
Expired
Date of Patent:
Nov. 13, 2012

Filed:

Dec. 10, 2008
Applicant:

Michael George Negrete, Mountain View, CA (US);

Inventor:

Michael George Negrete, Mountain View, CA (US);

Assignee:

Linear Technology Corporation, Milpitas, CA (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
G05F 1/00 (2006.01);
U.S. Cl.
CPC ...
Abstract

A powered LED circuit may include a power supply configured to generate and deliver an output current at a controllable average value with a substantial ripple component, one or more LEDs connected together, and a ripple reduction circuit connected to the power supply and to the one or more LEDs. The ripple reduction circuit may have a current regulator connected in series with the one or more LEDs which is configured to substantially reduce fluctuations in the current which flows through the one or more LEDs due to the ripple component of the output current, but not fluctuations in the current which flows through the one or more LEDs due to changes in the average value of the output current.


Find Patent Forward Citations

Negrete, Michael. (2012). Current ripple reduction circuit for leds (U.S. Patent No. 8310172). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8310172

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

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