Mohammad Nazmur Rahman Emon
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AC Dimmer Circuit

Phase-cut AC dimmer that smoothly controls the brightness of a mains lamp.

AC Dimmer Circuit

Overview

TRIAC + opto-isolator phase-cut dimmer driven from a microcontroller via zero-crossing detection. Rated for 220 V AC mains.

Specifications

Tech tagsTRIACZero-crossAC Mains

Project photos

AC Dimmer Circuit 1
AC Dimmer Circuit 2

Links & files

  • Demo video

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