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Designing Constant Current (CC) for LiFePO4 Battery Charger

Posted by Afuevu
3:28 am
21/11/2024

I want to design a charger that charges my lifepo4 battery(4s,3p). The charger is going to be AC to Dc charger having an output of 14.6v 15Amps. My challenge now is i intend to ensure i have a CV,CC at the output, the CV can be done easily, but the CC, i am having difficulty wrapping my head around how to go about it.I studied the XL4016EI circuit to see how they achieved the constant current functionality using variable resistor to set it, but i dont want to use that IC for the CC functionality.I want to incorporate the functionality of CC but have no idea doing it. The IC I am considering to use for the fly-back converter is the UC3842/UC3843.