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How to Build a 12V 3A Electric Charger: Circuit Design and Component Selection

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  • #1 21667610
    yasir Noor
    Anonymous  
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  • #2 21667611
    Steve Spence
    Anonymous  
  • #3 21667612
    Lauri Koponen
    Anonymous  
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  • #4 21667613
    yasir Noor
    Anonymous  
  • #5 21667614
    Lauri Koponen
    Anonymous  
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  • #6 21667615
    yasir Noor
    Anonymous  
  • #7 21667616
    ben Jieming
    Anonymous  
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  • #8 21667617
    yasir Noor
    Anonymous  
  • #9 21667618
    Lauri Koponen
    Anonymous  
  • #10 21667619
    randy Arifia
    Anonymous  

Topic summary

The discussion focuses on designing a 12V, 3A battery charger powered from a 220V AC input. Key considerations include whether to implement a simple automotive-style trickle charger or a more advanced smart charger with a three-stage charging profile. Suggestions include using a step-down transformer or a buck converter for voltage regulation. Managing the battery's full charge state is critical, with options such as diversion load circuits to prevent overcharging. A reference circuit link is provided for practical guidance. The project is intended as an educational exercise in battery charger fabrication.
Summary generated by the language model.
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