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Thread: Using another 5v source for high powered USB devices

  1. #11
    Vendor - Qube colin's Avatar
    Join Date
    Dec 2006
    Posts
    796
    Basically. Be aware that diodes drop voltage that you don't want to drop, especially in a regulator situation.

  2. #12
    Newbie
    Join Date
    Jun 2010
    Location
    Canberra, Australia
    Posts
    19
    So I should try and keep the 5v supply seperate from the 5v coming from the motherboard?

    Can I take my power and ground from the regulator +5v and the common ground, and the data lines going to the motherboard USB?

    Something like this:



  3. #13
    What can I say? I like serial. Curiosity's Avatar
    Join Date
    Mar 2004
    Location
    Florence Yall, BFKY
    Posts
    2,684
    That should work, but keep the ground connected to everything.

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