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 9572225 B1

PDF
Full Text
Expired
Date of Patent:
Feb. 14, 2017

Filed:

Apr. 15, 2016
Applicant:

Siteco Beleuchtungstechnik Gmbh, Traunreut, DE;

Inventors:

Bernhard Wuppinger, Surberg, DE;

Markus Rhein, Waging, DE;

Julia Pölzl, Grabenstaett, DE;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H05B 41/24 (2006.01); H05B 33/08 (2006.01);
U.S. Cl.
CPC ...
H05B 33/0893 (2013.01);
Abstract

Various embodiments may relate to a method for determining life expectancy information of an LED module with a plurality of LEDs. The method includes detecting of forward biases of the LED module at instants of time which lie less than 100 ms apart from each other, comparing a currently detected forward bias with one or more earlier detected forward biases, in order to detect a voltage jump which reaches a minimum initial inverse voltage within a predetermined jump duration, wherein the minimum initial inverse voltage is at least 60 mV and the predetermined jump duration is less than 100 ms long, and determining life expectancy information based on one or more detected voltage jumps.


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Wuppinger, Bernhard. (2017). Method and device for determining life expectancy information of an led module (U.S. Patent No. 9572225). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/9572225

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