GitHub - Miceuz/triac-bloc: An universal power block based on triac. In essence this is a solid state relay with some bells and whistles
![digital logic - Why this optoisolator triac (MOC3021) using for DC/DC switching is not turing off? - Electrical Engineering Stack Exchange digital logic - Why this optoisolator triac (MOC3021) using for DC/DC switching is not turing off? - Electrical Engineering Stack Exchange](https://i.stack.imgur.com/1oBZt.png)
digital logic - Why this optoisolator triac (MOC3021) using for DC/DC switching is not turing off? - Electrical Engineering Stack Exchange
![Rs1a40d40 Single Phase Triac Ssr Relay 40a,3v 5v 12v 24v 32v Dc Input Output 400vac,dc Ac Industrial Voltage Relay Switch Board - Relays - AliExpress Rs1a40d40 Single Phase Triac Ssr Relay 40a,3v 5v 12v 24v 32v Dc Input Output 400vac,dc Ac Industrial Voltage Relay Switch Board - Relays - AliExpress](https://ae01.alicdn.com/kf/HTB1EoTeadfvK1RjSspfq6zzXFXaV/RS1A40D40-Single-Phase-Triac-SSR-Relay-40A-3V-5V-12V-24V-32V-DC-Input-Output-400VAC.jpg_Q90.jpg_.webp)