Essays about: "Wännström Aksel"
Found 1 essay containing the words Wännström Aksel.
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1. Quality Control of Light Emitting Diodes : Using power factor, harmonic distortion and light to power ratios
University essay from Uppsala universitet/Fasta tillståndets elektronikAbstract : 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. READ MORE
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