Articles with "led bulb" as a keyword



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Design of a Novel LED Bulb with Entire Surface Thermally Activated for Passive Cooling

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Published in 2021 at "Applied Thermal Engineering"

DOI: 10.1016/j.applthermaleng.2021.117466

Abstract: Abstract LED lightings have made significant contributions to global energy saving, where one major challenge is the overheating of LED chips since the light output and lifespan of LED chips decrease exponentially with increasing operating… read more here.

Keywords: heat; surface; led bulb; design ... See more keywords
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Effect of PWM Duty Cycle and Frequency of Power Supply to the LED Bulb Efficacy

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Published in 2017 at "International Journal of Power Electronics and Drive Systems"

DOI: 10.11591/ijpeds.v8.i3.pp1011-1015

Abstract: In this paper described the effect of frequency and duty cycle of the PWM power supply LED bulb light efficacy. Efficacy LED bulb is measured by measuring the light flux and power consumed at standard… read more here.

Keywords: frequency; efficacy; power; power supply ... See more keywords