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Thread: Audio smps 700w (IR2153)

  1. #41
    hi silvio, thank u for ur reply,
    i modified little like a pro board.
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  2. #42
    diysmps Senior Member Silvio's Avatar
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    Hi Nazirdigi, good arrangement. Use current limit board because the other ones are not tested. Make sure that the gate diodes are pointing to the IR2153. I have a mistake in one of the component layout diagrams.

    Do not forget to post some pictures of your project.

  3. #43
    @Silvio: Hey, just noticed something odd while looking at your circuit board layout. Your 3 dual rectifier diodes are setup kind of strangely. You have 4 diodes(2 packages) rectifying the negative output rail, while you only have 2 diodes(1 package) rectifying the positive output rail. Was this intentional or was this an oversight while designing the layout of the board? With the type of diodes used there isn't a way to evenly split them using only 3 packages, so I'm just curious as to why it was designed this way. Nice project though, very effective.

    -Brad

  4. #44
    diysmps Senior Member Silvio's Avatar
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    @ Blasphemy000
    The only reason I have 50 of these diodes that I bought in an auction on E-bay and configured a full bridge with them. They are genuine and good diodes. I even used them on the 1000watt smps that I published here but used 4 of them so the bridge will be more balanced and have a full capacity of 16A at 200v.

    Regards Silvio
    Last edited by Silvio; 10-11-2017 at 08:03 PM.

  5. #45
    diysmps Senior Member Silvio's Avatar
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    audio smps 700 watts

    https://imgur.com/a/r32w6

    New mod to Audio smps 700w with 2 output diodes instead of 3 and added output capacitance and filtering. It can also fit 14 and 16 pin bobbin for ETD 39
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    Last edited by Silvio; 10-12-2017 at 04:22 PM.

  6. #46
    Ah, I gotcha. I was just curious as to the reason behind it. I've built things where using what I already had led to an interesting design. As long as the functionality is there, that is all that matters. Thank you for the explanation.

    -Brad

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