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Project:AC Intensity Controller: Difference between revisions
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== Theory == | == Theory == | ||
The circuit converts the AC sine wave in to a square wave, and uses this to detect whenever the amplitude of the AC wave equals zero (the "zero-cross"). At that point the microcontroller switches | The circuit converts the AC sine wave in to a square wave, and uses this to detect whenever the amplitude of the AC wave equals zero (the "zero-cross"). At that point the microcontroller switches the lighting circuit off, and at a time 0–10 milliseconds later switches it back on. This creates the illusion of reduced brightness. | ||
== Design == | == Design == | ||
