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MULTILEVEL ELECTRIC POWER CONVERTER

  • US 20110280052A1
  • Filed: 11/10/2009
  • Published: 11/17/2011
  • Est. Priority Date: 11/10/2008
  • Status: Active Grant
First Claim
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1. A multilevel electric power converter circuit comprising:

  • Ns switching elements connected in series in a closed loop;

    NAE additional elements, the additional elements being one of a direct current source and at least one passive element, connected within the closed loop such that each additional element is connected to four of the switching elements, the ratio of a number of additional elements NAE to a number of switching elements NS corresponding to NS=2NAE+2; and

    one of a load and an alternating current source connected across the closed loop at nodes between adjacent switching elements that are separate from nodes to which the additional elements are connected.

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