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bq2031 inductor selection

arun kumar52946
Prodigy 10 points

how do i determine the dc resistance that is required for the inductor that i have used. this is the specification of my design.

I have used the two step algorithm for a 24volt battery with 12 cells.

Vdc - 37.28V

Imax - 2.5A

 

 

 

l

  • 0
    TI__Guru**** 150830 points

    The DC resistance simply affects the efficiency of the charger and is arbitrary.  Usually, there are size constraints for the charger system which limits the DCR to some level.  A lower DCR will give a more efficicient charger.

  • 0
    Prodigy 240 points

    Hi Arun,

     

    Can you please post your circuit or the resistor values that you used to make the 24V charger. I would like to compare them.

     

    I'm looking for a circuit on which changing a jumper will charge a 24V Battery and default is 12V SLA battery.