RD33771CDSTEVB - using with 8 cells

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RD33771CDSTEVB - using with 8 cells

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Gad_usr1
Contributor II

Hi, I am using RD33771CDSTEVB. To use this board for 8 cells instead of 14 cells, we followed the table below and shorted the unused pins to cell 4. But we are getting wrong values. It is working when we are reading 14 cells. Kindly suggest if any further modification needs to be done in software or hardware

Gad_usr1_0-1721909251504.png

Gad_usr1_1-1721909381585.png

 

 

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Gad_usr1
Contributor II

we used filter type c 

Gad_usr1_0-1721909645021.png

 

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Gad_usr1
Contributor II

Below shows the cell voltage readings. Total stack voltage is correct. Also voltages of cell 3,4,11 and 12 are correct. But cell 1, 2, 13, 14 are wrong. These cells are also around 3.2V when checked with multimeter.

Gad_usr1_0-1721984147321.png

 

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