Hello,
For a battery management system project I started off with the AD CN0510 development board as I wanted to check how well this chipset works for EIS.
When trying the devkit with the SensorPal environment I get to a set of results that I do not expect, and I cannot get the values I do expect.
Boards:
- CN0510
- EVAL–ADICUP3029
Software:
- Sensorpal ver. 2.5.2.10
- firmware ver 2.5.2.7
Used battery cell:
- LFP/LiFePO4
- 3.65V when full, currently ~3.23V
- 6700mAh
Black terminals 1&3 combined and 2&4 combined.
Red terminals 1&3 to battery neg, red terminals 2&4 to battery pos
Impedance:
When I use the Impedance functionality at a static frequency, the response is "NAN" at the moment:
In previous runs I did manage to get values, however they were very unstable (large range of resistance values, 100-600 ohms)
Battery Impedance:
At a static value this already seems to be noisy:
At a sweep it does not get much better:
I have the feeling I am doing something wrong, but with the manuals and forum replies I don't know what my mistake is.
