Patent ID: 7838797
Filing Date: 2010-11-23
Classification: B23K

Abstract:
1. A multi-powered welding-type power source comprising: a converter configured to generate a welding-type power from an input power, the converter having an input and an output from which the welding-type power is available for a welding-type operation; an energy storage device coupled in series to the converter to provide input power thereto; an engine-driven generator operative to generate an electrical output and connected to the converter to provide input power thereto, the engine-driven generator being coupled to the energy storage device to provide the electrical output to the energy storage device to charge the energy storage device; and an electrical connection between the engine-driven generator and the output of the converter, the electrical connection including a bypass conductive path that is in parallel with the energy storage device and the converter collectively, wherein the bypass conductive path enables power from the electrical output of the engine-driven generator to selectively bypass the energy storage device and the converter; wherein the multi-powered welding-type power source is configured to enable the welding-type power to be alternatively provided by the energy storage device alone, by the engine-driven generator alone, and by both the energy storage device and the engine-driven generator together.