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buck boost

Discussion in 'Electronic Basics' started by [email protected], Sep 3, 2008.

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  1. Guest

    http://en.wikipedia.org/wiki/Buck-boost_converter

    Is there a reason why the switch is between the voltage source and the
    coil?

    What would happen if the switch were between the voltage coil and
    ground (as it is in the Boost converter)?

    Thanks,

    Michael
     
  2. Bill

    Bill Guest

    "voltage coil" does not refer to any node. Try rewording your
    question, so that we know what you are asking.

    Best,
     
  3. Guest


    remove the word "voltage"
     
  4. Bill

    Bill Guest

    Still, the coil is not a node. A coil has two electrical nodes. I
    imagine that you are referring to the node that is not ground. You
    mean leaving the inductor where it is (you didn't say anything about
    moving it) and connecting the switch across it (in parallel with it)?
    You shouldn't do that. The switch would short circuit the input
    voltage source. That's never good. The input current would be huge if
    the voltage source was close to ideal.

    Best,
     
  5. Guest


    uh, no. That would be silly.

    Ha ha ha.

    I'll post a scan, if I find time (and find the correct driver to
    install my scanner).

    I suppose a picture is worth 1E3 words...

    Michael
     
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