Abstract
In this chapter, another example of applying the static phasor transformation to an LED driver is explained. This chapter is useful to see an aspect of modern LED drivers. Innovative passive LED drivers that can reduce the total harmonic distortion (THD) significantly by LC parallel resonance are suggested in this chapter. Using an inductor and three capacitors, called LC3, novel characteristics such as high efficiency and power factor (PF) with extremely long life time are achieved. The proposed LED drivers have a temperature-robust characteristic because their power is hardly changed by temperature, selecting the number of LED in series ns appropriately so that the LED power variation due to temperature change in LED can be zero.
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