djc
Advanced Member level 1
HI all,
I want an AC mains fail detection circuit with zero crossing detector. I searched and found an optocoupler circuit. But how to employ zero crossing detector circuit? A rectified DC will be fed to optocoupler LED to get the unsmoothened DC output. How to proceed then.
I want an AC mains fail detection circuit with zero crossing detector. I searched and found an optocoupler circuit. But how to employ zero crossing detector circuit? A rectified DC will be fed to optocoupler LED to get the unsmoothened DC output. How to proceed then.