The Effect of LED Chip Connection Type on Lighting and Thermal Performance of A Luminaire
Author(s) : ALI AJDER, HAKAN AKCA, HUSEYIN AKDEMIR, ISMAIL NAKIR, MUGDESEM TANRIOVEN, RAMAZAN AYAZ
Abstract
LED Lighting system is an alternative to conventional lighting system for their special advantages in terms of power rating, lifetime, luminous efficacy, etc. This paper proposes the results obtained from a DC/DC converter powered LED streetlight system. In this study, high and low voltage output DC/DC converter is used for operating serial and parallel connected LED modules. The effects of connection type and output voltage are presented to verify the effectiveness on LED driver in terms of thermal, electrical and lighting aspects. Then it is shown that thermal and optical performance is better in serial connection, reliability performance is better on the parallel connection
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