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Zero Cross Optocoupler

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4 Threads found on edaboard.com: Zero Cross Optocoupler
thank you for your reply....can u please provide me a link for refernce design?? simply this circuit will help you. You will take zero cross detection point and fire the optocoupler depends on duty cycle.
Hello, Do you only need to sense there is 220v or you want to quantify the intire voltage with your adc?? If you just want to sense the live main you can use one optoacupler and sense the main and the zero cross too. I use this ina a project to make an controled dimmer with microprocessor. If you want to quantify all the 220v you can use t
HI TO ALL I AM MAKING A PROJECT USING S202S11 IT IS A Solid State Relays Built-in snubber circuit Non-zero cross type. BUT I AM UNABLE TO FIND IT LOCAL MARKET SO COULD U PLEAS THE EQUVALENT CIRCUT FOR IT SINCE I THINK IT CAN POSSIBLE BY USING A optocoupler(MOC3011) AND A TRIAC THANKING YOU
i need some way to let my microcontroller know when a zero cross occurs, otherwise i cant keep phase with my little light dimming project. i saw plans for using a 4n25 (the most primitive of optocouplers: merely a transistor pretty much), but i havent had much luck actually making it go. it pretty much just hooks the LED input up to (...)