Texas Instruments LM3448 -120VAC, 6W Isolated Flyback LED Driver Eval Board LM3448-120VFLBK/NOPB LM3448-120VFLBK/NOPB Datenbogen
Produktcode
LM3448-120VFLBK/NOPB
Circuit Operation With Reverse Phase TRIAC Dimmer
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Circuit Operation With Reverse Phase TRIAC Dimmer
The circuit operation was also verified using a reverse phase dimmer and waveforms captured at different
dimmer settings are shown below:
dimmer settings are shown below:
Figure 17. Reverse phase circuit at full brightness
Figure 18. Reverse phase circuit at 90° firing angle
Figure 19. Reverse phase circuit at 150° firing angle
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AN-2090 LM3448 -120VAC, 6W Isolated Flyback LED Driver
SNOA554C – October 2011 – Revised May 2013
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