Abstract
This paper presents the design and develops of voltage acceptability curves for LED lamps. It is done with the mathematical representation of DC bus voltage of LED lamps internal ballast circuit during voltage sags. First, experimental analysis was done to determine the effect of voltage sag of LED lamp. From the findings on the variation of DC bus voltage during voltage sag, a mathematical equivalent of DC link voltage is then obtained to construct a voltage acceptability curve for the tested lamp. Hence, the design of voltage acceptability curves for LED lamp with internal electronic ballast is sensitive to voltage sag.
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