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BQ78350-R1A: Charge algorithm working principle

Juan López Jódar
Prodigy 150 points
Part Number: BQ78350-R1A

Tool/software:

Hello, i was working with the device BQ78350-R1A and i don't quite understand the charge balancing algorithm:



It says that the charging algorithm adjusts ChargingCurrent() and ChargingVoltage() to allow the appropiate charging conditions to be read. 
What does this means? It means that in an application this device would adjust the ChargingCurrent and ChargingVoltage of the battery? Basically i don't quite understand how this charge algorithm.

This device is only with the purpose of calculating State of charge, using the cell balancing algorithm or does it imply any limitation in terms of applying voltage and current to the battery besides the overvoltage and over-current protections?

Thanks in advance!
Juan.

  • +1
    TI__Mastermind 33871 points

    Hello Juan,

    Essentially, Charging Current() and Charging Voltage() are read only values that are reported from the gauge. This information can be read from a host MCU or a charger IC to then tell the charger: "set charging current to x and set charging voltage to y". The gauge is not doing anything to actually change the voltage or current, only reporting the values that voltage and current should be set to.

    Regards,

    Adrian 

  • 0 in reply to Adrian
    Prodigy 150 points

    Perfect,, understood thanks Adrian.