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[b]Help on a simple 12v battery charger. [/b]

Discussion in 'Electronic Projects Design/Ideas/Reviews' started by chokolate, Apr 23, 2004.

  1. chokolate

    chokolate New Member

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    Hi to all who view this, :D

    i'm actually in desperated needs. i'm apparently doing a school project and i'm not very good in coming out with a design. i have been searching on the net for quite sometime and still couldn't find a suitable design. :(

    i need help on a simple 12v battery charger. o/p 12V, 0.5A to charge the battery. The circuit must not have any voltage regulators, ic chips. The circuit would be put together with a transformer.

    Need the schematic asap!
    thanks in advanced to those whom help me.
     
  2. stevez

    stevez Active Member

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    I've seen schematics where a zener diode and transistor are used to regulate voltage. Sorry I don't have a URL but if you search under power supply basics you'll find it eventually. Usually it's an extension of a description on how a zener diode is applied in power supplies.
     
  3. Nigel Goodwin

    Nigel Goodwin Super Moderator Most Helpful Member

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    All you need for a simple charger is a transformer, a rectifer, and a resistor - most cheap commercial chargers are built like this.
     
  4. dave

    Dave New Member

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  5. chokolate

    chokolate New Member

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    Thanks for the help. i'll go on searching for more. But wat i really need is a circuit, i'm running out of time. :cry: i need a circuit that is simple.

    To stevez, can i use a op-amp to regulate the voltage and the current?

    Do anyone have a regulator circuit that has a constant output which is 12V and 0.5A? The circuit cannot have a regulator and IC chips.
    Would love to recieve more replies!
     
  6. csaba911

    csaba911 Member

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    I hope this help.
    Don't copy, just a guidance !! right !!


    STEVE
     

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