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Experimental Results

13.3 Power Factor Performance

The LED driver is able to achieve close to unity power factor (P.F. ~ 0.95) which meets Energy Star

requirements. This design also exhibits low current harmonics as a percentage of the fundamental current

(as shown in the following figure) and therefore meets the requirements of the IEC 61000-3-2 Class-3

standard.

Figure 22. Current Harmonic Performance vs. EN/IEC61000-3-2 Class C Limits

SNVA429C–August 2010–Revised May 2013 AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver

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