replacing batteries with a power adapter -

Discussion in 'DIY' started by rmunson, Feb 10, 2018.

  1. deltalight

    deltalight AK Subscriber Subscriber

    Messages:
    246
    Location:
    Minneapolis
    You can use a higher- voltage supply and run it into a LP2950 LDO (low drop-out) 3-terminal regulator to tame the output ripple/noise. The +5VDC out will be more than quiet enough for the Velleman kit your building. I wouldn't worry about damaging the two MICs as they are more than likely rated for 2-10v operation as Velleman designers wouldn't want a pile of returns with burned-out ECMs to deal with. I'ts a nice little circuit that can easily be reduced in size by re-designing the PCB for SMD components. It would look like a credit card.
     

     

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  2. rmunson

    rmunson console destructor

    Super!
    Thanks for the explanations and recommendations!
    Reed
     

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