Power Management - 6-Channel DMX Dimmer - AN2302 - Farnell

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TRIAC Control, Synchronization Signal Waveforms Figure 16 shows the four waveforms collected. AC line frequency Signal on AC Synchronizer output (in Figure 5 it is called “F100”) Signal on PWM output TRIAC control pulse Figure 16. TRIAC Control and Synchronization Signal Waveforms Figure 17. Board AN2302 August 25, 2005 Document No. 001-31164 Rev. ** 12 [+] Feedback
Summary The optimal structure for a multi-channel dimmer system (more than 6 channels) is a two-chip design (Figure 18). The DMX Protocol receiver can be implemented using the low-cost, CY8C21xxx PSoC device family. The 16-channel PWM generator can be built using the CY8C29xxx family or even a software implemented multi-channel PWM generator. In this case, the second chip can be from the CY8C21xxx family as well. OPTO AC Zero - Crossing Detector 21 Family DMX Receiver Data Ready for Next Figure 18. 16-Channel DMX System 21 or 29 Family Zero-Crossing Module Frequency Calibration PWM Control Up to 16 TRIACS Lamp 1 Lamp 16 AN2302 August 25, 2005 Document No. 001-31164 Rev. ** 13 [+] Feedback
Page 1 and 2: Application Note Abstract Power Man
Page 3 and 4: DMX Dimmer 110-220 V AC ~ AC mains
Page 5 and 6: The zener diode DV2 and capacitor C
Page 7 and 8: Using the software PWM to control t
Page 9 and 10: The GPIO is used for the zeroing of
Page 11: Figure 15. RX8 Interrupt Flowchart

Power Management - 6-Channel DMX Dimmer - AN2302 - Farnell

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