From 055ef650515e6679e78d7b151691c8665df0624c Mon Sep 17 00:00:00 2001 From: Serge NOEL Date: Tue, 14 Apr 2026 10:55:38 +0200 Subject: [PATCH] Ajout moc --- MOC3041.md | 21 +++++++++++++++++++++ 1 file changed, 21 insertions(+) create mode 100644 MOC3041.md diff --git a/MOC3041.md b/MOC3041.md new file mode 100644 index 0000000..26c2e03 --- /dev/null +++ b/MOC3041.md @@ -0,0 +1,21 @@ +To test an MOC3041 optoisolator (a zero-crossing triac driver) with low voltage, you can use a simple circuit with a low-voltage AC source (like 12V AC) and a small load (such as a low-wattage lamp or resistor). Here’s how you can do it safely: + +1. Input Side (LED): + - Connect a current-limiting resistor (typically 220–470Ω for 5V logic) in series with the input LED (pins 1 and 2). + - Apply a DC voltage (e.g., 5V) across the input side to turn on the LED. +2. Output Side (Triac): + - Connect the output pins (pins 4 and 6) in series with your low-voltage AC source and the load. + - For example: AC Live → Pin 6, Pin 4 → Load → AC Neutral. +3. Test Procedure: + - When you apply voltage to the input side, the internal LED turns on, triggering the triac. + - The load should turn on (lamp lights up or resistor shows voltage drop). + - Remove the input voltage; the load should turn off. + +**Precautions**: + - Use a low-voltage AC source (like 12V AC) for safety. + - Never connect directly to mains voltage for testing. + - Double-check pinout: Pin 1 (anode), Pin 2 (cathode), Pin 4 and 6 (triac output). + +**Optional**: + +- You can use a multimeter in AC mode across the load to verify switching. \ No newline at end of file