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HOW to calibrate ADE7763 Vrms and Irms

Question asked by Rameshrahi on Nov 10, 2016
Latest reply on Nov 10, 2016 by nchandra

Dear all,

 

i am using ADE7763  single phase energy meter IC. i try to read the VRMS register(0x17) from that IC it gives 40960 from that register without giving any input to  V2N  and V2P terminal. afterwards i convert that value in to real rms value it gives 15v output. now i increased my input voltage to 0-15  there is no variation in the output after 15v output increasing gradually

depends upon input. my output have + or - 5v fluctuation

 

 for eg; i set input voltage as 150 it oscillate between 145-155 what is the reason?

 

   i want only Vrms,Irms and period from ADE7763 .how to calibrate the chip

 

this one is my part of the code

 

while(1)
{
temp2=0;

for(i=0;i<10;i++)
{
temp1=Read_24bit_data(0x17);
temp2+=temp1;
}
RMS_VOLTAGE=temp2/10;
RMS_VOLTAGE=RMS_VOLTAGE*0.000367;
printf("RMS_VOLTAGE:%lu\r\n",RMS_VOLTAGE);


FREQUENCY=(3579545*16)/(4*32*Read_16bit_data(0x27));
printf("FREQUENCY:%lu\r\n",FREQUENCY);

 

for(i=0;i<100;i++)
DELAY_US(10000);
}

 

Regards

Ramesh

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