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US 11,724,330 B2Granted
Welding system having an auxiliary charger
AssigneeIllinois Tool Works Inc.
InventorsJames F. Ulrich, Allen Raymond Sykes
Life of this patent
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Abstract
A welding system includes an engine configured to drive a generator to produce a first power output. The welding system also includes a battery configured to discharge energy to produce a second power output. In addition, the welding system includes an auxiliary charger coupled to the battery and the generator. 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.
Claims20
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.
7 more elements
A hybrid welding power supply unit, comprising:
- an auxiliary charger coupled to a battery, an engine-generator unit, and an energy source that is separate from the engine-generator unit;
- and
- a controller configured to 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 a first power output or a third power output by a predetermined amount, wherein the first input and the third input comprise a hybrid power output, wherein the auxiliary charger is configured to maintain a float charge of the battery when the power output produced by the hybrid welding power supply unit is reduced from a base load.
A method, comprising:
- receiving a first input comprising a power level of a first power output from an engine-generator unit of a hybrid welding power supply unit;
- receiving a second input comprising a power level of a second power output from a battery of the hybrid welding power supply unit;
- receiving a third input comprising a power level of a third power output from a battery charging circuit of the hybrid welding power supply unit, wherein the first input and the third input comprise a hybrid power output;
- selecting 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;
- and
- maintaining a float charge of the battery when the power output produced by the hybrid welding power supply unit is reduced from a base load.
3 more elements
Dependencies are inferred from the claim text.