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    circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    dear all please send me circuit diagram for it

    •   Alt22nd September 2012, 17:18

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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    A dual interleaved buck converter could be suitable.

    Schematic of my simulation:



    The switches must be replaced by mosfets/transistors. Component values are theoretical and can be changed.

    A single buck converter will not give you 9A. It only provides as much current as is available from the supply (that is, 6A).

    Another type is transformer based (flyback). I had a simulation going, and I tried to make a transformer which provides 5V to the load. I have not succeeded. (Sending pulsed DC through a transformer gets tricky.)



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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    Hi Prashanttiyagi
    As Bradtherad said one of the best solutions is a buck converter . but there is another way available too . i think with this low voltage , you don't need any isolation , so a simple flyback converter , with non isolated feedback ( with two resistors and a common ground ) can be ok too .
    But another thing , if you use a buck converter in discontinuous mode , out put current can be higher than input current .
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    •   Alt22nd September 2012, 23:18

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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    I managed to devise a simple flyback converter (simulated) that provides 5V at 9A.

    Schematic:



    Values are theoretical and can be changed.

    The diode needs to be oriented at whatever polarity works best.


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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    thanks to all for this
    but i told that i am new for this field
    so please help me by sending some links or data for basic knowledge of these kind of supply



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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    Your thread title suggests there is already a switch mode power supply creating the 24V 6A.

    Rather than add another smps, it might be practical to adjust the incoming supply to your desired spec.

    I don't know that it is possible. However if it could be done then you can save some work and expense.

    Furthermore even if you start building your own smps, it may turn out to be impractical.



    •   Alt24th September 2012, 13:42

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    Re: circuit diagram for 24V 6A dc smps to 5v 9A dc converter

    but i told that i am new for this field
    Hi again , if you are new , at this , process , i think you'd better to take a look at datasheet of UC3845 . it will be interesting ! then i think we can guide you more .
    Best Wishes
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