Check out this link for On Semiconductor’s datasheet for a line of “Zero-Cross Optocoupled Triac Drivers.” The ability to zero-cross when turning on AC line voltage to some loads may be advantageous.
The MP4020 is a primary-side–control LED lighting controller with TRIAC dimming. Primary-side control can significantly simplify the LED lighting driving system by eliminating the opto-coupler and the ...
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