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DC/DC converter

  • US 9,461,538 B2
  • Filed: 09/23/2013
  • Issued: 10/04/2016
  • Est. Priority Date: 09/23/2013
  • Status: Active Grant
First Claim
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1. A DC/DC converter for converting power between a first DC connection comprising a first positive terminal and a first negative terminal, and a second DC connection comprising a second positive terminal and a second negative terminal, the DC/DC converter comprising:

  • a first multilevel converter and a second multilevel converter connected serially between the first positive terminal and the first negative terminal, wherein the second positive terminal is connected to a point between the first multilevel converter and the second multilevel converter;

    where each converter has n phases, where n is a number of two or more, and for each phase there is an upper converter arm and a lower converter arm, each comprising a number of serially connected converter cells, where there are inductors between the upper and lower converter arms and respective AC terminals are provided between the inductors of each phase, anda first filter connected between an AC terminal of the first multilevel converter and an AC terminal of the second multilevel converter, wherein the first filter comprises a capacitor and an inductor.

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