Perkins Coie LLP
Power source for electric arc welding
A power source for an electric arc welding process, wherein the power source comprises an input stage having an AC input and a first DC output signal; a second stage in the form of an unregulated DC to DC converter having an input connected to the first DC output signal and an output in the form of a second DC output signal electrically isolated from the first DC output signal and with a magnitude of a given ratio to the first DC output signal; and, a third stage to convert the second DC output signal to a welding output for the welding process.
Lincoln Global, Inc.
B B
B23K B23K
inventional inventional
Todd E. Joseph A. Lifeng
Kooken Daniel Luo