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- W2383889272 abstract "We analyze the thermal characteristics of 1 W GaN-LED as function of input power.Based on the transient thermal measurement,the relationship of junction-ambient thermal resistance and input power is discussed.The thermal resistance and the thermal capacitance in the heat flow path can be captured by the diffe-rential structure function and cumulative structure function,offering reliable evidence for thermal management.The devices exhibit a decrease of effective thermal resistance from 14.3 K/W to 12.5 K/W when the input current increases from 100 mA to 500 mA at the heatsink temperature of 25 ℃.However the effective thermal resistance gradually decrease from 12.5 K/W to 12.3 K/W with the input current from 500 mA to 800 mA.On the other hand,when the input current increases from 900 mA to 1 650 mA,the change trend is completely opposite,while the device exhibits an increase of effective thermal resistance from 14.7 K/W to 15.4 K/W.With the same devices,the different trends of thermal resistance go with different current regions.All packaged LEDs can be simplified to the model composed of an ideal diode and a series resistance." @default.
- W2383889272 created "2016-06-24" @default.
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- W2383889272 date "2010-01-01" @default.
- W2383889272 modified "2023-09-24" @default.
- W2383889272 title "Influence of Power Effect on The Thermal Resistance of Power LED" @default.
- W2383889272 hasPublicationYear "2010" @default.
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