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voltage bucking!

Discussion in 'Electronic Basics' started by Natty, Sep 11, 2005.

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  1. Natty

    Natty Guest

    hi

    can someone help on voltage bucking configuration/connection? wat does
    it mean?

    thanx in advance

    Natty.
     
  2. PeteS

    PeteS Guest

  3. Ralph Mowery

    Ralph Mowery Guest

    If a transformer has several windings and they are connected in series they
    will either add or substract from the total voltage. That is called series
    aiding or series bucking.
     
  4. ehsjr

    ehsjr Guest

    Simple "buck" circuit analogy:

    +12V- -1.5V+
    +---Batt---+---Batt---+
    | |
    +--------Rload--------+

    The 1.5 volt battery "bucks" the 12 volt battery, resulting
    in 10.5 volts across Rload

    For completeness, here's a "boost" circuit:

    +12V- +1.5V-
    +---Batt---+---Batt---+
    | |
    +--------Rload--------+

    The 1.5 volt battery "boosts" the 12 volt battery, resulting
    in 13.5 volts across Rload

    The terms "buck" and "boost" are most often associated with
    DC to DC converters.

    In the real world circuits the "bucking" or "boosting" is not
    done with batteries. Generally speaking, a voltage is created
    in a coil, and the coil is electronically switched so that the
    voltage in it either adds to ("boosts") the input voltage or
    opposes ("bucks") the input voltage.

    Ed
     
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