Switching power sources, battery charging

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  1. - 2nd July 2013, 21:07 #1
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    Default Switching power sources, battery charging

    Hi,

    I'm designing a home alarm system and need to be able to switch during blackouts between a 15VDC power source and a 12V battery. I have found this design using mosfets:

    http://saeedsolutions.blogspot.ca/#!...-supplies.html



    I need to support 5A so I'm using IRFU6215 mosfets instead (150V 12A 110W). Comments and opinions appreciated.

    Robert


    EDIT: Changed to 15VDC source to remain above battery charging voltage.
    Last edited by Demon; - 2nd July 2013 at 21:40.
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