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require help in debugging circuit-- "PEAK DETECTOR&quot

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sita

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hi,
as mentioned of a project, we were trying to implement the peak detector using the below circuitry for4 AC circuit. But we are NOT able to get teh constant peak voltage. can any one pls help me to identify the mistake of this circuit?

regards,
Sita
 

Your circuit only indicates the point in time that the peak occurres. You would need to have this circuit trigger a tracking-sample-and-hold circuit.

Ken
 
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