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Circuit Operation With Rotary Forward Phase TRIAC Dimmer www.ti.com
14 Circuit Operation With Rotary Forward Phase TRIAC Dimmer
The dimming operation of the circuit was verified using a forward phase rotary TRIAC dimmer. Waveforms
captured at different dimmer settings are shown in the following figures.
Figure 23. Forward Phase Circuit at Full Brightness Figure 24. Forward Phase Circuit at 90° Firing Angle
Figure 25. Forward Phase Circuit at 150° Firing Angle
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AN-2034 LM3445 -120VAC, 8W Isolated Flyback LED Driver SNVA429C–August 2010–Revised May 2013
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