Patent ID: 8704130
Filing Date: 2014-04-22
Classification: B23K

Abstract:
1. An electric welding machine comprising: a main transformer that provides isolation from a power input to the welding machine, the main transformer having a first secondary winding in circuit communication with a welder power output; and a second secondary winding in circuit communication with an auxiliary power supply having an auxiliary power output operable separate from the welder power output to power a separate electrically powered device, the auxiliary power supply output being in circuit communication with a receptacle disposed on an external panel of the welding machine for connection with the separate electrically powered device; the auxiliary power supply including an input for monitoring the welder power output to determine if the welder power output is on; circuitry for monitoring the output of the auxiliary power output; and circuitry for reducing the available power to the auxiliary power output if there is a surge in power demand on the auxiliary power output that exceeds a set limit and the welder power output is on.