Design strategy of high power LED arrays for various applications Bong-Ryeol Park School of Electronic and Electrical Engineering Graduate School Hongik University

Design strategy of high power LED arrays for
various applications

Bong-Ryeol Park
School of Electronic and Electrical Engineering
Graduate School Hongik University

Thermal effects in LED arrays were investigated as a function of LED
power, and spacing. For high power LEDs, the increase in junction
temperature due to a high driving current plays an important role in LED
performance, e.g. conversion efficiency, optical degradation, etc. Since the
maximum driving power that determines LED brightness is limited by the
critical junction temperature, thermal influence from adjacent LEDs in an
array has to be also taken into account carefully. The relationship
between maximum allowed driving power and LED BLU design
parameters are discussed along with other factors to be concerned.
LINK
http://www.mediafire.com/view/z7xzvfz8c839x5r/LED-HIGH-POWER-2014.pdf