AC Dimmer Safety: Mains Voltage, Isolation, and Wiring Feb 26, 2026 0 5 TL;DR: AC dimmer modules use optical isolation — the MCU-side pins (ZC, DIM, VCC, GND) are electrically separated from 230V mains. The AC terminals (AC-IN, AC-N, AC-OUT) are live mains voltage. Size w... ac-dimmer safety theory tutorial Read more
AC Dimmer Based on Zero-Cross Detector and TRIAC: Operating Principles and Applications Apr 10, 2025 3 7209 Introduction Dimming is the process of regulating the power of an electrical device: controlling the power of different types of water or air heaters, light brightness, or the rotation speed of fans, ... ac-dimmer theory Read more