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You are here: Home / Replies / you have to built ZCD first.

you have to built ZCD first.

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Projects › Projects › Project question › you have to built ZCD first.

June 3, 2015 at 12:56 pm #12959
Ashutosh Bhatt
Participant

you have to built ZCD first. 

http://www.engineersgarage.com/electronic-circuits/zero-cross-detector

this circuit will give you one negative pulse when AC wave crosses zero mark. so you need two such circuits for two AC wave input

then output of both ZCD you give to micro controller and just compare the time delay between two negative pulses

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