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Cross current control for power converter systems and integrated magnetic choke assembly

  • US 20040017689A1
  • Filed: 07/25/2002
  • Published: 01/29/2004
  • Est. Priority Date: 07/25/2002
  • Status: Active Grant
First Claim
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1. A cross current control system for multiple, parallel-coupled power converters, the cross current control system comprising:

  • common mode chokes, each coupled to a respective power converter;

    local cross current detectors, each configured for obtaining common mode cross currents from a respective output line of a respective power converter;

    local cross current feedback controllers, each configured for receiving the common mode cross currents from respective local cross current detectors, calculating a resultant cross current, and generating a local feedback control signal; and

    local converter controllers, each configured for using a respective local feedback control signal to drive the respective power converter in accordance with a coordinated switching pattern with respect to the other power converters.

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