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An automatic charger

  1. Jan 11, 2008 #1
    1. The problem statement, all variables and given/known data

    i need to build a circuit which can charge a 12V 10 A battery to reach a votltage A and then stops charging until it reaches a voltage B it will rechrge again . i wanna do this using thyristor

    2. Relevant equations



    3. The attempt at a solution
    i found a circuit for a 12 v 4A it will reach A but i donno how to control B
     

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  2. jcsd
  3. Jan 11, 2008 #2

    dlgoff

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  4. Jan 12, 2008 #3
    no sir it wont work cz 1st i ne the two voltagers not to be A and -A i need them to be A and B second i need to do that using thyristor
     
  5. Jan 12, 2008 #4

    dlgoff

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    With a voltage divider, you can get A and B to be any posivite value you want between the positive and negative terminals of your battery. Then use these values as inputs to a couple of op-amps used as comparators. You should then be able use the comparator outputs to find a way to switch your charger on/off while using thyristors.
     
  6. Jan 13, 2008 #5
    well it is a good idea but i canot use op amps sorry for wasting ur time any other ideas . i just can use thyristor diodes and resistors
     
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