Hello forum,
I am working on a BMS system design. I want to use bq769x0 series BM IC due to some advantages. But I didnt understand how CC counter block work entirely. I research delta sigma converter structures, read SLUA775 app. note and also find another sources.
This block has a shunt resistor input and there is a voltage at the enterance of this block. This voltage has a zone -270mV to +270mV. In scheduler note,one sampling time is divided 64000 cycle over 250ms. For example in below some voltages on the sense resistor is written (assumed) by me.
-at first cycle : 100.000 uV at second cycle : 100.000 uv at third cycle : 100.000 uV . . . . at thirty-two thousand th cylce : 100.084,4 . . . . at sixty-four thousandth cycle : 100.084,4
In a time interval for this device there is 64000 sample. But these are only voltage values. How it converts to current or coulomb values. Of course we can calculate when we assume Rsense value. But operation is not like that of course.
Good days and jobs.
EMRE
