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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.

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Quality Control of Light Emitting Diodes : Using power factor, harmonic distortion and light to power ratios

Abdulahi Mohamed, Abdirahman, Aksel, Wännström January 2016 (has links)
This study addresses quality control for Light Emitting Diodes (LED) according to fouraspects, the power factor of LED lamps, their harmonics and total harmonic distortion (THD), the luminosity for total power to radiated power ratio. It focuses on four brands and six different LED lamps, and concludes that IKEA's LED lamps pertain as the quality lamp, with a power factor over 0.9, THD less than 4% and a power to radiated light of over 4%.
Quality Control
LED
Bulb
Power Factor
Light Emitting Diodes
harmonic distortion
light to power ratios
Kvalitets Kontroll
Lampa
LED
Övertoner
Elkvalite

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