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SOFT-SWITCHING HIGH VOLTAGE POWER CONVERTER

  • US 20140049990A1
  • Filed: 04/08/2013
  • Published: 02/20/2014
  • Est. Priority Date: 08/14/2012
  • Status: Active Grant
First Claim
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1. A charge transfer apparatus for transferring an electric charge between an input power terminal and a galvanically isolated output power terminal comprising:

  • a transformer including a plurality of primary windings and a plurality of galvanically isolated secondary windings;

    a first plurality of resonant converters having input terminals connected in series to the input power terminal and having output terminals connected to different primary windings of the plurality of primary windings;

    a second plurality of resonant converters having input terminals connected to different secondary windings of the plurality of secondary windings and having output terminals connected to the galvanically isolated power terminal;

    a control system for controlling the transfer of electric charge between the input power terminal and the galvanically isolated output power terminal including controlling a first plurality of switches of the first plurality of resonant converters and a second plurality of switches of the second plurality of resonant converters in a zero current soft switching mode.

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