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Three-Leg Power Converter Apparatus

  • US 20100201341A1
  • Filed: 04/30/2009
  • Published: 08/12/2010
  • Est. Priority Date: 01/17/2009
  • Status: Active Grant
First Claim
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1. A three-leg power converter apparatus, comprising:

  • a first input/output port, a second input/output port, and a third input/output port with each of them having two terminals;

    a three-leg bridge converter having three single-leg circuits, two DC terminals connecting with the two terminals of the first input/output port, and three mid-terminals, with each mid-terminal being located at a middle point of one of the three single-leg circuits;

    a controller electrically connecting to the three-leg bridge converter for controlling an input or output current passing through each DC terminal and mid-terminal;

    a filter circuit having one side connecting to two of the mid-terminals of the three-leg bridge converter and another side connecting to the two terminals of the second input/output port; and

    a decoupling circuit having a first terminal and a second terminal respectively connecting to the two terminals of the second input/output port and a third terminal connecting to one of the two terminals of the third input/output port, with the other terminal of the third input/output port connecting to the other mid-terminal that dose not connect with the filter circuit.

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