Other Parts Discussed in Thread: BQ77905
Hello all together,
Im using the bq77915 for multiple applications and it works fine except the short cut time is too long. But this is not my question here.
Now I want to develop a new BMS with the bq77915 or bq77905 that controls and balances a pack of 9 cells in series.
But it is not clear to me how the balancing between the chip for the lower cells and the chip for the upper cells works. I cannot see a connection for a communication or an overlapping of cell connections.
How does it work?
Many thanks
Katl Thorwart