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Re: Problem in output from CF pin of ADE7757 IC

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Hi hmani

 

I rechecked the REF pin and it is at 2.5 V. I was unable to understand the purpose of removing 100nF capacitor from RCLKIN pin. I have made a PCB, and it is not possible for me to remove and re-solder the components. Maybe if you convince me then I will remove it.

 

I am using L1 and L2 as a protective measure against electrical surges. Will it be safe for the circuit if I remove them?

 

For experimental purposes I attached a load of 100Watt to my meter, then measured V1 and V2 w.r.t AGND. I got the following valuse

 

V1=15mV and V2=59mV

after calculation I got F1=F2=0.2504616357

For SCF=0, S1=S2=1

I should have got C.F=2048*F1=512.945Hz but i was getting only 50Hz..

 

I don't know whether I am doing the callibration, the correct way or not.


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