Method for controlling a battery-powered welding device, and battery-powered welding device
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United States of America Patent
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Mar 20, 2018
Grant Date -
Nov 5, 2015
app pub date -
May 21, 2014
filing date -
May 23, 2013
priority date (Note) -
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Abstract
A method controls a battery-powered welding device and a battery-powered welding device includes a battery having a battery voltage and a battery current and a welding controller containing a boost converter having at least a switch and a buck converter having at least one switch for controlling a welding current and a welding voltage supplied to a welding torch. A switch for bypassing the booster converter is connected to a switch controller designed to close the switch if the intermediate circuit voltage between the boost converter and the buck converter is less than or equal to the battery voltage and to open the switch if the boost converter is activated.
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