AN137 Datasheet, PDF (10/36 Pages) Silicon Laboratories – LITHIUM ION BATTERY CHARGER USING C8051F300

AN137
Figure 8. Monitor_Battery() Flow Chart.
Monitor_Battery()
Current
AMUX = Current
Measurement
Type
?
Charge Voltage
AMUX = Volt
Temperature
Stop PWM
AMUX = Temperature
Battery Voltage
Stop PWM
AMUX = Volt
AV = 0
I=0
No
I≤10?
Yes
Start ADC0
Voltage w/ or w/out PWM
Current
Temperature
Calculate Voltage w/
Calibration Coefficients
Calculate Current w/
Calibration Coefficients
Calculate Temperature w/
Calibration Coefficients
No
ADC0 Done?
Yes
AV = AV + ADC0
AV = AV/10
Turn PWM on
Return Desired Parameter
END
10
Rev. 1.2