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:
Jun. 21, 2016
Filed:
Jun. 18, 2013
Ams Ag, Unterpremstätten, AT;
Manfred Pauritsch, Graz, AT;
Werner Schögler, Graz, AT;
AMS AG, Unterpremstaetten, AT;
Abstract
An electronic circuit () to monitor a temperature of a light emitting diode () comprises a current generating circuit () to generate a current flow of at least a first and second current (IC, IC) through the light emitting diode () and a voltage monitoring circuit () to monitor a voltage of the light emitting diode (). The voltage monitoring circuit () is further arranged to determine a difference of a respective value of a first and second voltage (Vf, Vf) of the light emitting diode () to monitor the temperature of the light emitting diode (), wherein the first voltage (Vf) and second voltage (Vf) of the light emitting diode () is determined while driving the first and second current (IC) through the light emitting diode ().