vrla battery charger with avr

Discussion in 'The Projects Forum' started by meysaminter, Dec 22, 2009.

  1. meysaminter

    Thread Starter New Member

    Dec 22, 2009
    I'm tying to buid a VRLA battery charger
    (model:ML12120 12v12AH . datasheet: http://maxpowertop.com/pdf/ML12120.pdf ):first the constant current and then constant
    voltage is reqiured to charge the battery. Since the time of charging is about 10 hour , I want to know that is it nessary to
    use a PID control feedback to speed up the regulation of current in the constant current charging (MOre instruction:
    http://www.atmel.com/dyn/resources/prod_documents/current_supply.pdf) or a stap by stap increasig or decreasing in the switch
    time on, to regulate the current is sufficient? the design based in useing the AVR microcontroller.
    I will be glad to resive a designed models.