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DC-DC converter with integrated transformer assembly composed of transformer pair

  • US 7,907,042 B2
  • Filed: 10/30/2007
  • Issued: 03/15/2011
  • Est. Priority Date: 10/31/2006
  • Status: Expired due to Fees
First Claim
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1. An integrated transformer assembly comprising:

  • a first core member constituting a first magnetic path;

    a second core member constituting a second magnetic path, the second magnetic path being separated from the first magnetic path, the first and second core members being physically separated from each other;

    a common coil member having a first portion configured to be alternately wound, for each one electromagnetic turn, around the first core member and around the second core member, the first portion of the common primary coil member wound around the first core member being magnetically linked to the first magnetic path thereof so as to constitute a first primary coil, the first portion of the common primary coil member wound around the second core member being magnetically linked to the second magnetic path thereof so as to constitute a second primary coil, the first primary coil and the second primary coil being connected in series; and

    a secondary coil member having a first secondary coil and a second secondary coil, the first and second secondary coils being arranged to be magnetically linked to the first and second magnetic paths of the first and second core members, respectively.

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