Title :
Power LEDs operating temperature measurement using the protection reverse diode
Author :
Vladescu, Marian ; Mihailescu, Bogdan
Author_Institution :
Optoelectron. Res. Center, “Politeh.” Univ. of Bucharest, Bucharest, Romania
Abstract :
Determination of the junction temperature of power LEDs is a great challenge. Indirect calculation of the junction temperature can be done by calculations, starting from the temperatures that could be measured with thermocouples in the accessible points and taking into consideration the thermal resistances of the materials included in the LED structure and in the mounting PCB used as heatsink. In this paper the authors proposed to use as temperature sensor the protection diode embedded in most of the power LED structures.
Keywords :
diodes; heat sinks; intelligent sensors; light emitting diodes; power semiconductor devices; printed circuits; temperature measurement; temperature sensors; thermal resistance; thermocouples; PCB; heatsink; junction temperature; operating temperature measurement; power LED structures; protection reverse diode; temperature sensor; thermal resistances; thermocouples; Contacts; Junctions; Light emitting diodes; Semiconductor diodes; Soldering; Temperature measurement; Temperature sensors; LED junction temperature; LED temperature measurement;
Conference_Titel :
Design and Technology in Electronic Packaging (SIITME), 2014 IEEE 20th International Symposium for
Conference_Location :
Bucharest
DOI :
10.1109/SIITME.2014.6967009
