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Hybrid welding modules

  • US 10,449,615 B2
  • Filed: 10/31/2016
  • Issued: 10/22/2019
  • Est. Priority Date: 10/31/2016
  • Status: Active Grant
First Claim
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1. A hybrid welding module, comprising:

  • a welding input switch configured to receive welding-type input power and to selectively output the welding-type input power to a weld circuit as first welding-type output power;

    an energy storage input switch configured to receive the welding-type input power and to selectively conduct the welding-type input power to an energy storage device;

    an energy storage output switching circuit to convert energy output by the energy storage device to second welding-type power and to output the second welding-type power to the weld circuit; and

    a control circuit configured to;

    enable charging of the energy storage device by controlling the energy storage input switch to output the welding-type input power to the energy storage device;

    selectively controlling the welding input switch to output the welding-type input power to the weld circuit;

    determine a commanded total welding-type current;

    monitor a first welding-type current through the welding input switch;

    monitor a second welding-type current output by the energy storage output switching circuit; and

    control the energy storage output switching circuit to output the second welding-type power for combination with the first welding-type output power based on the commanded total welding-type current, the first welding-type current, and the second welding-type current.

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