paley
Member level 4
hi, guys
in the application document of TI's BQ2472X/3X which called "Closed-Loop Compensation Design of a Synchronous Switching Charger Using bq2472x/3x", there is a Li-Ion Battery Equivalent Circuit Model, How to used this model?
the description as blow:
"Figure 15 shows the typical Li-ion battery equivalent circuit model used for the small-signal analysis. lt is
approximately correct for charged state from 100% of SOC to 20% of SOC. Impedance varies from
manufacturer to manufacturer up to two times and from cell to cell up to ±15%. For a discharged state
below 20% of SOC, the impedance starts to increase rapidly. The particular value the impedance reaches
depends on manufacturer, but it can be roughly modeling by multiplying R1 and R2 by 3."
and the attacked is the figure
thanks
in the application document of TI's BQ2472X/3X which called "Closed-Loop Compensation Design of a Synchronous Switching Charger Using bq2472x/3x", there is a Li-Ion Battery Equivalent Circuit Model, How to used this model?
the description as blow:
"Figure 15 shows the typical Li-ion battery equivalent circuit model used for the small-signal analysis. lt is
approximately correct for charged state from 100% of SOC to 20% of SOC. Impedance varies from
manufacturer to manufacturer up to two times and from cell to cell up to ±15%. For a discharged state
below 20% of SOC, the impedance starts to increase rapidly. The particular value the impedance reaches
depends on manufacturer, but it can be roughly modeling by multiplying R1 and R2 by 3."
and the attacked is the figure
thanks