US 11,724,330 B2
Welding system having an auxiliary charger
James F. Ulrich, Appleton, WI (US); and Allen Raymond Sykes, New London, WI (US)
Assigned to Illinois Tool Works Inc., Glenview, IL (US)
Filed by Illinois Tool Works Inc., Glenview, IL (US)
Filed on Nov. 11, 2020, as Appl. No. 17/95,368.
Application 17/095,368 is a continuation of application No. 13/841,626, filed on Mar. 15, 2013, granted, now 10,864,592.
Prior Publication US 2021/0060683 A1, Mar. 4, 2021
Int. Cl. B23K 9/10 (2006.01)
CPC B23K 9/1075 (2013.01) [B23K 9/1006 (2013.01); B23K 9/1081 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A welding system, comprising:
an engine configured to drive a generator to produce a first power output;
a battery configured to discharge energy to produce a second power output;
an auxiliary charger coupled to the battery, the generator, and an energy source that is separate from the welding system generator; and
a controller configured to:
receive a first input comprising a power level of the first power output;
receive a second input comprising a power level of the second power output;
receive a third input comprising a power level of a third power output from a battery charging circuit, wherein the first input and the third input comprise a hybrid power output; and
select the energy source that is separate from the welding system generator to provide power to the auxiliary charger in response to a reduction of the first power output or the third power output by a predetermined amount, wherein the auxiliary charger is configured to maintain a float charge of the battery when the first and second power outputs are reduced from a base load.